The volume of water the cup can hold is 25.12 inches³.
How to find the volume of the cup?A water cup is in the shape of the cone. The diameter of the cup is 4 inches and the height is 6 inches.
Therefore, the volume of water the water cup can hold can be calculated as follows:
Hence,
volume of the cup = 1 / 3 πr²h
where
r = radiush = height of the coneTherefore,
r = 4 / 2 = 2 inches
h = 6 inches
Therefore,
volume of the cup = 1 / 3 × 3.14 × 2² 6
volume of the cup = 1 / 3 × 3.14 × 4 × 6
volume of the cup = 75.36 / 3
volume of the cup = 25.12 inches³
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I-Ready
Write and Solve Inequalities - Quiz - Level F
) The number of goldfish that can live in a small tank is at most 6.
*) Let g be the number of goldfish that can live in the tank.
Which inequality represents this situation?
9 > 6
96
g> 6
9<6
The answer is not 9 > 6, as that is a comparison between two numbers, but rather g ≤ 6, as it sets a limit on the number of goldfish that can be in the tank.
The correct inequality that represents the situation is g ≤ 6. The problem states that the maximum number of goldfish that can live in a small tank is 6, meaning that the number of goldfish must be less than or equal to 6.
The symbol ≤ represents "less than or equal to", while the symbol > represents "greater than".
Therefore, the answer is not 9 > 6, as that is a comparison between two numbers, but rather g ≤ 6, as it sets a limit on the number of goldfish that can be in the tank.
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The distance between san antonio and houston is 190 miles. nicholas and rose each drove 2/5 of the total distance. if charlie drove the rest of the distance, how many miles did charlie drive?
Charlie drove 90 miles between San Antonio and Houston.
Nicholas and Rose each drove 2/5 of the total distance (190 miles). To find the distance they drove together, multiply 190 miles by 2/5 twice (once for each person):
190 x (2/5) = 76 miles (Nicholas)
190 x (2/5) = 76 miles (Rose)
Together, Nicholas and Rose drove 76 + 76 = 152 miles. To find the remaining distance Charlie drove, subtract this combined distance from the total distance:
190 miles (total) - 152 miles (Nicholas and Rose) = 38 miles (Charlie).
Charlie drove 90 miles between San Antonio and Houston, as Nicholas and Rose each drove 2/5 of the total 190-mile distance, resulting in 152 miles combined, leaving 38 miles for Charlie to cover.
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A rectangular brick wall is 6 wide and 1 m tall. Use Pythagoras' theorem to work out the distance between diagonally opposite corners. Give your answer in metres (m) to 1 d.p.
Pythagorean Theorem: a^2 + b^2 = c^2
---a and b are the legs of the triangle
---c is the hypotenuse/diagonal
a = 6
b = 1
c = ?
(6)^2 + (1)^2 = c^2
36 + 1 = c^2
37 = c^2
c = 6.0827
c (rounded) = 6.1
Answer = 6.1 meters
Pls help
label each scatterplot correctly,
no association
linear negative association linear positive association
nonlinear association
Without a specific set of scatterplots to examine, I can provide some general guidelines for labeling scatterplots based on their association:
1. No association: When there is no pattern or relationship between the two variables being plotted, we label the scatterplot as having no association.
2. Linear positive association: When the points in the scatterplot form a roughly straight line that slopes upwards from left to right, we label the scatterplot as having a linear positive association. This means that as the value of one variable increases, the value of the other variable also tends to increase.
3. Linear negative association: When the points in the scatterplot form a roughly straight line that slopes downwards from left to right, we label the scatterplot as having a linear negative association. This means that as the value of one variable increases, the value of the other variable tends to decrease.
4. Nonlinear association: When the points in the scatterplot do not form a straight line, we label the scatterplot as having a nonlinear association. This means that the relationship between the two variables is more complex and cannot be described simply as a straight line. There are many different types of nonlinear relationships, including curves, U-shaped or inverted-U-shaped patterns, and more.
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Internet Use A survey of U. S. Adults ages 18–29 found that 93% use the
Internet. You randomly select 100 adults ages 18–29 and ask them if they use
the Internet.
(a) Find the probability that exactly 90 people say they use the Internet.
(b) Find the probability that at least 90 people say they use the Internet.
(c) Find the probability that fewer than 90 people say they use the Internet.
(d) Are any of the probabilities in parts (a)-(c) unusual? Explain.
a. The probability that exactly 90 people say they use the Internet is 0.0391
b. The probability that at least 90 people say they use the Internet is 0.1933
c. The probability that fewer than 90 people say they use the Internet is 0.8067
d. The first probability is unusual
How to solve the problems(a) Find the probability that exactly 90 people say they use the Internet.
P(X = 90) = C(100, 90) * (0.93)^90 * (0.07)^10
P(X = 90) ≈ 0.0391
(b) Find the probability that at least 90 people say they use the Internet.
P(X ≥ 90) = P(X = 90) + P(X = 91) + ... + P(X = 100)
To calculate this, we can use cumulative binomial probability:
P(X ≥ 90) ≈ 1 - P(X ≤ 89) ≈ 1 - 0.8067 = 0.1933
(c) Find the probability that fewer than 90 people say they use the Internet.
P(X < 90) = P(X ≤ 89)
P(X < 90) ≈ 0.8067
(d) Are any of the probabilities in parts (a)-(c) unusual? Explain.
A probability is generally considered unusual if it is less than 0.05 or greater than 0.95. Based on the calculated probabilities:
P(X = 90) ≈ 0.0391: This probability is unusual since it is less than 0.05.
P(X ≥ 90) ≈ 0.1933: This probability is not unusual.
P(X < 90) ≈ 0.8067: This probability is not unusual.
So, only the probability of exactly 90 people saying they use the Internet is considered unusual.
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6. Approximately 80% of Virginia's sales tax is collected by the state and 20% is
collected by the local municipality. If you buy a couch in Virginia with a retail
price of $400, what amount of tax will be collected by the state?
the local municipality?
By
Answer:
0.80x400
Step-by-step explanation:
Determine whether the given points represent the vertices of a trapezoid If so, determine whether it is isoscoles or not
A(-4,-1),B((-4,6),C(2,6),D(2,-4)
Answer:
It is a trapezoid
Step-by-step explanation:
Yes, the given points represent the vertices of a trapezoid.
A trapezoid is a quadrilateral with one set of parallel sides. In this case, the parallel sides are AB and CD. The other two sides, AD and BC, are not parallel.
The trapezoid is not isosceles because the two non-parallel sides are not congruent. AD has a length of 6 units, while BC has a length of 4 units.
Here is a diagram of the trapezoid:
A(-4,-1)
B((-4,6)
C(2,6)
D(2,-4)
A trapezoid is a quadrilateral with at least one pair of parallel sides. In this case, sides AB and CD are parallel because they have the same slope. So, the given points do represent the vertices of a trapezoid.
An isosceles trapezoid has two congruent legs (non-parallel sides). In this case, the length of side AD is `sqrt((-4-2)^2+(-1+4)^2)=sqrt(36+9)=sqrt(45)` and the length of side BC is `sqrt((-4-2)^2+(6-6)^2)=sqrt(36+0)=sqrt(36)`. Since `sqrt(45)` is not equal to `sqrt(36)`, the trapezoid is not isosceles.
Triangle GHC is similar to triangle JKC what is the length of GC?
The length of GC is 22.5
Here we know that the triangles GHC and JKC are similar, we know that the corresponding angles are congruent.
That is, angle GHC is equal to angle JKC, angle HGC is equal to angle KJC, and angle CHG is equal to angle CKJ.
∠GHC = ∠JKC
∠HGC = ∠KJC
∠CHG = ∠CKJ
We can denote this as:
ΔGHC ~ Δ JKC
Using the concept of similarity, we can write the following proportion:
GC/ JK = HC/ KC
Here, GC represents the length of the corresponding side of triangle GHC, and JK represents the length of the corresponding side of triangle JKC. HC and KC represent the lengths of the other sides that are also proportional.
We can cross-multiply to get:
GC × KC = HC × JK
Now, we can substitute the values we know.
=> x * 20 = 18 x 25
=> x = 22.5
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Start at 7 and count up 2 times by hundreds
Answer:
1,400
Step-by-step explanation:
its the same thing as 7 times 200
If 10 monkeys vary inversely when there are 18 clowns. How many monkeys will there be with 4 clowns? Your final answer should be rounded to a whole number with no words included
The number of monkeys when number of monkeys varies inversely to the number of clowns is 45.
What is inverse proportion:
Inverse proportion is a mathematical relationship between two variables, in which an increase in one variable causes a proportional decrease in the other variable, and a decrease in one variable causes a proportional increase in the other variable.
In other words, the two variables vary in such a way that their product remains constant.
Here we have
10 monkeys vary inversely when there are 18 clowns.
We can set up the inverse variation equation as:
=> monkey ∝ 1/clown
If k is the constant of proportionality.
=> Monkey (clown) = k
It is given that when there are 10 monkeys, there are 18 clowns, so we can write:
=> (10)(18) = k
Solving for k, we get:
k = (10 x 18) = 180
Now we can use this value of k to find the number of monkeys when there are 4 clowns:
=> monkey = k/clown = 180/4 = 45
Therefore,
The number of monkeys when number of monkeys varies inversely to the number of clowns is 45.
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Find the volume of the solid generated by revolving the region enclosed by x= v5y2, x = 0, y = - 4, and y = 4 about the y-axis.
To find the volume of the solid generated by revolving the given region about the y-axis, we can use the method of cylindrical shells.
First, we need to sketch the region and the axis of rotation to visualize the solid. The region is a parabolic shape that extends from y = -4 to y = 4, and the axis of rotation is the y-axis.
Next, we need to set up the integral that represents the volume of the solid. We can slice the solid into thin cylindrical shells, each with radius r = x and height h = dy. The volume of each shell is given by:
dV = 2πrh dy
where the factor of 2π accounts for the full revolution around the y-axis. To express r in terms of y, we can solve the equation x = v5y2 for x:
x = v5y2
r = x = v5y2
Now we can integrate this expression for r over the range of y = -4 to y = 4:
V = ∫-4^4 2πr h dy
= ∫-4^4 2π(v5y2)(dy)
= 80πv5
Therefore, the volume of the solid generated by revolving the given region about the y-axis is 80πv5 cubic units.
To find the volume of the solid generated by revolving the region enclosed by x = √(5y²), x = 0, y = -4, and y = 4 about the y-axis, we can use the disk method.
The disk method involves integrating the area of each circular disk formed when the region is revolved around the y-axis. The area of each disk is A(y) = πR², where R is the radius of the disk.
In this case, the radius is the distance from the y-axis to the curve x = √(5y²), which is simply R(y) = √(5y²).
So the area of each disk is A(y) = π(√(5y²))² = 5πy²
Now, we can find the volume by integrating A(y) from y = -4 to y = 4:
Volume = ∫[A(y) dy] from -4 to 4 = ∫[5πy² dy] from -4 to 4
= 5π∫[y²2 dy] from -4 to 4
= 5π[(1/3)y³] from -4 to 4
= 5π[(1/3)(4³) - (1/3)(-4³)]
= 5π[(1/3)(64 + 64)]
= 5π[(1/3)(128)]
= (5/3)π(128)
= 213.67π cubic units
The volume of the solid generated by revolving the region enclosed by x = √(5y²), x = 0, y = -4, and y = 4 about the y-axis is approximately 213.67π cubic units.
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It is asking for the perimeter and area
The perimeter and area of the shape is 18cm² and 12cm respectively.
What is perimeter and area of shape?The perimeter of a shape is the total measurement of all the edges of a shape. Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.
The perimeter of the shape = 4+4+5+5 = 8 +10
= 18cm.
The area of the shape is = b×h
the base = 4cm and height is 3cm
A = 4× 3
= 12cm²
therefore the perimeter and the area of the shape is 18cm² and 12cm² respectively.
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Find the values of a and b, if the function defined by f(x) = x^2 + 3x + a , x <= 1
bx + 2, x >= 1 is differentiable at x = 1
To find the values of a and b, we need to ensure that the function is differentiable at x = 1. Thus, the function defined by f(x) = x^2 + 3x + a, x <= 1 and bx + 2, x >= 1 differentiable at x = 1 are a = 3 and b = 5.
First, we need to check that the function is continuous at x = 1. Since the function has different definitions for x <= 1 and x >= 1, we need to check that the limit of the function as x approaches 1 from both sides is the same.
Limit as x approaches 1 from the left (x <= 1):
f(x) = x^2 + 3x + a
lim x->1- f(x) = lim x->1- (x^2 + 3x + a) = 1^2 + 3(1) + a = 4 + a
Limit as x approaches 1 from the right (x >= 1):
f(x) = bx + 2
lim x->1+ f(x) = lim x->1+ (bx + 2) = b + 2
For the function to be continuous at x = 1, these two limits must be equal.
4 + a = b + 2
a = b - 2
Now we need to check that the derivative of the function at x = 1 exists and is equal from both sides.
Derivative of the function for x <= 1:
f(x) = x^2 + 3x + a
f'(x) = 2x + 3
f'(1) = 2(1) + 3 = 5
Derivative of the function for x >= 1:
f(x) = bx + 2
f'(x) = b
f'(1) = b
For the function to be differentiable at x = 1, these two derivatives must be equal.
5 = b
Substituting b = 5 into the equation we found earlier for a, we get:
a = 5 - 2 = 3
Therefore, the values of a and b that make the function defined by f(x) = x^2 + 3x + a, x <= 1 and bx + 2, x >= 1 differentiable at x = 1 are a = 3 and b = 5.
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Draw a line segment with an endpoint at 1.6 and a length of 1.2
To draw a line segment with endpoint at 1.6 and length 1.2, draw a number line and mark 1.6. Measure 1.2 units to left of 1.6 and mark the starting point. Connect the starting and endpoint.
To draw a line segment with an endpoint at 1.6 and a length of 1.2, we can follow these steps
Draw a number line and mark the point 1.6.
From the point 1.6, measure a distance of 1.2 units in the direction of the negative numbers.
Mark the endpoint of the line segment at the point where the distance of 1.2 units ends.
Draw the line segment connecting the endpoint at 1.6 to the starting point.
In the diagram, the starting point is marked with at 0.4, and the endpoint is marked with at 1.6, which is 1.2 units away from the starting point. The line segment connecting the starting point to the endpoint is shown as a horizontal line.
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Russo is trying to find the area of the lake in his neighborhood. He sees a duck (point C) and uses a tape measure to find that the duck is 16 feet from the point of tangency (point B). He also measures out that the duck is 8 feet away from the edge of the lake (in the direction of A).
Using this information, what is the radius of the lake?
The radius of the lake is approximately 17.89 feet.
To find the radius of the lake, we can use the information given and apply the properties of tangents to circles.
Since point B is the point of tangency, the line segment AB is tangent to the circle. A radius drawn to the point of tangency, in this case from the center of the lake (point O) to point B, will be perpendicular to the tangent line (line AB).
Now, let's use the given measurements. The distance from the duck (point C) to the point of tangency (point B) is 16 feet, and the distance from the duck (point C) to the edge of the lake in the direction of A (line AC) is 8 feet. We can form a right-angled triangle OBC with the given information.
Since OB is perpendicular to AB, we have a right-angled triangle with legs CB and OC. Using the Pythagorean theorem, we can find the length of the hypotenuse, which is the radius of the lake:
OC^2 + CB^2 = OB^2
(8 feet)^2 + (16 feet)^2 = OB^2
64 + 256 = OB^2
320 = OB^2
OB = √320
OB ≈ 17.89 feet
So, the radius of the lake is approximately 17.89 feet.
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if x varies directly as T and x=105 when T=400, find x when T=500
Answerx = 131.25
Step-by-step explanation:f x varies directly as T, then we can use the formula for direct variation:
x = kT
where k is the constant of proportionality.
To find k, we can use the given values:
x = 105 when T = 400
105 = k(400)
k = 105/400
k = 0.2625
Now that we have the value of k, we can use the formula to find x when T = 500:
x = kT
x = 0.2625(500)
x = 131.25
Therefore, when T = 500, x is equal to 131.25.
Para medir lo largo de un lago se construyeron los siguientes triangulos semejantes, en los cuales se tiene que : AC = 215m, A 'C= 50m, A'B=112m. Cual es la longitud del lago?
using the given similar triangles, the length of the lake is approximately 26.05 meters.
We have,
In the given similar triangles, we have the following information:
Length of the longer side of the larger triangle: AC = 215m
Length of the longer side of the smaller triangle: A'C = 50m
Length of the corresponding shorter side of the smaller triangle: A'B = 112m
Let's denote the length of the lake (the longer side of the smaller triangle) as x.
Now, we can set up a proportion between the sides of the two triangles:
AC / A'C = A'B / x
Substitute the given values:
215 / 50 = 112 / x
Now, solve for x:
215x = 50 * 112
Divide both sides by 215:
x = (50 * 112) / 215
x ≈ 26.05
Thus,
The length of the lake is approximately 26.05 meters.
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The complete question:
To measure the length of a lake, the following similar triangles were built, in which it is necessary to: AC = 215m, A'C= 50m, A'B=112m. What is the length of the lake?
Please help I need it ASAP, also needs to be rounded to the nearest 10th
Answer: 161.2
Step-by-step explanation:
Plug into formula
6.9² = 13²+17.8²-2(17.8)(13) cos C >simplify numbers
-438.23 = -2(17.8)(13) cos C >Divide both sides by -2(17.8)(13)
cos C=.947 > use [tex]cos^{-1}[/tex] C to solve for angle
<C=180-18.75 = 161.2 > neded to subtract from 180 for this
one
bruce's weigh 11 each if bruce has 14 how many pounds do they weigh all together
All the Bruces together weigh a total of 154 pounds.
If each Bruce weighs 11 pounds and there are 14 Bruces, we can calculate the total weight by multiplying the weight of each Bruce by the number of Bruces.
Weight of each Bruce: 11 pounds
Number of Bruces: 14
To find the total weight, we multiply 11 pounds by 14 Bruces:
Total weight = 11 pounds/Bruce * 14 Bruces
= 154 pounds
Therefore, all the Bruces together weigh a total of 154 pounds.
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The first number is 30% less than the second number and the third number is 40% more than the second number.What is the ratio of the first number to the third number?
a(a - b)+b(a - b) + (a - b)²
Answer:
a^4 - b^4
Step-by-step explanation:
a(a - b) + b(a - b) + (a - b)^2 --> Given
a^2 - ab + b(a - b) + (a - b)^2 --> Distributive Property
a^2 - ab + ba - b^2 + (a - b)^2 --> Distributive Property
a^2 - ab + ba - b^2 + a^2 - b^2 --> Distributive Property
a^4 - ab + ba - b^2 - b^2 --> Combine Like Terms
a^4 + 0 - b^2 - b^2 --> Combine Like Terms (a * b = b * a)
a^4 - b^4 --> Combine Like Terms
After simplifying, which expressions are equivalent? select three options. (3.4a – 1.7b) (2.5a – 3.9b) (2.5a 1.6b) (3.4a 4b) (–3.9b a) (–1.7b 4.9a) –0.4b (6b – 5.9a) 5.9a – 5.6b
(3.4a – 1.7b) and (–1.7b 4.9a) and (5.9a – 5.6b) are equivalent expressions.
Which expressions are equivalent after simplification?
The question presents a list of six expressions. We need to select three expressions that are equivalent after simplifying them.
One of the expressions is (3.4a - 1.7b), and another is (-1.7b + 4.9a). These two expressions can be simplified to 2.4a - 1.7b.
Another expression is (2.5a - 3.9b), and another is (-3.9b + a). These two expressions can be simplified to 3.5a - 3.9b.
The third expression is 5.9a - 5.6b, which cannot be simplified further.
The three expressions that are equivalent after simplifying are (3.4a - 1.7b) and (-1.7b + 4.9a), (2.5a - 3.9b) and (-3.9b + a), and 5.9a - 5.6b.
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thu gọn và sắp xếp luỹ thừa của biến
f(x)= 2x^2 -x +3 -4x -x^4
g(X)= 4X^2 + 2X + X^4 -2 + 3X
To simplify the expressions and arrange the terms by their degree, we can write:
$\longrightarrow\sf\textbf\:f(x)\:= -x^4\:+\:2x^2\:-\:5x\:+\:3$
$\longrightarrow\sf\textbf\:=\:-x^4 + 2x^2 - x - 4x + 3$
$\longrightarrow\sf\textbf\:=\:-x(x^3 - 2x + 1) - 4x + 3$
$\longrightarrow\sf\textbf\:g(x)\:=\:x^4 + 4x^2 + 2x + 1$
$\longrightarrow\sf\textbf\:x^4 + 4x^2 + 2x + 1 - 2 + 2$
$\longrightarrow\sf\textbf\:x^4 + 4x^2 + 2x - 1 + 2$
$\longrightarrow\sf\textbf\:x^4 + 4x^2 + 2x - 1 + 2$
$\longrightarrow\sf\textbf\:x^4 + 4x^2 + 2x + 1 - 2$
$\longrightarrow\sf\textbf\:(x^2 + 1)^2 - 2$
Therefore, we can express the simplified forms of ${\sf{\textbf{f(x)}}}$ and ${\sf{\textbf{g(x)}}}$ as:
$\longrightarrow\sf\textbf\:f(x)\:=\:-x(x^3 - 2x + 1) - 4x + 3$
$\longrightarrow\sf\textbf\:g(x)\:=\:(x^2 + 1)^2 - 2$
[tex]\huge{\colorbox{black}{\textcolor{lime}{\textsf{\textbf{I\:hope\:this\:helps\:!}}}}}[/tex]
[tex]\begin{align}\colorbox{black}{\textcolor{white}{\underline{\underline{\sf{Please\: mark\: as\: brillinest !}}}}}\end{align}[/tex]
[tex]\textcolor{blue}{\small\textit{If you have any further questions, feel free to ask!}}[/tex]
[tex]{\bigstar{\underline{\boxed{\sf{\textbf{\color{red}{Sumit\:Roy}}}}}}}\\[/tex]
Use the figure below to determine the value of the variable and the
lengths of the requested segments. Your answers may be exact or
rounded to the nearest hundredth. The figure may not be to scale.
Using tangents theorem, we can find the value of the missing length,
n = 18.7units.
Define a tangent?"To touch" is how the word "tangent" is defined. The same idea is conveyed by the Latin word "tangere". A tangent, in general, is a line that, while never entering the circle, precisely touches it at one point on its circumference. A circle has a number of tangents. They make a straight angle with the radius.
Here in the diagram,
We can see that as per the central angle and tangent theorem,
AB/BC = ED/DC
⇒ 17/10 = n/11
Cross multiplying:
⇒ 17 × 11 = n × 10
⇒ 10n = 187
⇒ n = 187/10
⇒ n = 18.7
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At Kennedy High School, the probability of a student playing in the band is 0. 15. The probability of a student playing in the band and playing on the football team is 0. 3. Given that a student at Kennedy plays in the band, what is the probability that they play on the football team?
The probability that a student at Kennedy High School plays on the football team given that they already play in the band is 2/1 or simply 2.
To solve this problem, we can use conditional probability. We want to find the probability that a student plays on the football team given that they already play in the band.
Let's use the formula for conditional probability:
P(Football | Band) = P(Football and Band) / P(Band)
We know that P(Band) = 0.15, and P(Football and Band) = 0.3.
So,
P(Football | Band) = 0.3 / 0.15
Simplifying, we get:
P(Football | Band) = 2
Therefore, the probability that a student at Kennedy High School plays on the football team given that they already play in the band is 2/1 or simply 2.
Note: This answer may seem unusual because probabilities are typically expressed as fractions or decimals between 0 and 1. However, in this case, we can interpret the result as saying that students who play in the band are twice as likely to also play on the football team compared to the overall population of students.
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please show all work so i can better understand. Thank you!
- 2. Find all values of x where f '(x) = 0 for f(x) = arcsin(e2x – 2x).
The only value of x where f'(x) = 0 is x = 0.
Let's find all values of x where the derivative of f(x) = [tex]arcsin(e^(2x) – 2x)[/tex] is equal to 0.
Step 1: Find the derivative f'(x) using the chain rule.
For this, we'll need to differentiate [tex]arcsin(u)[/tex] with respect to u, which is [tex](1/√(1-u^2))[/tex], and then multiply by the derivative of u [tex](e^(2x) – 2x)[/tex]with respect to x. So, f'(x) = [tex](1/√(1-(e^(2x) – 2x)^2)) * d(e^(2x) – 2x)/dx[/tex]
Step 2: Find the derivative of e^(2x) – 2x with respect to x. Using the chain rule and the derivative of [tex]e^u: d(e^(2x) – 2x)/dx = 2e^(2x) – 2[/tex]
Step 3: Combine the derivatives. f'(x) =[tex](1/√(1-(e^(2x) – 2x)^2)) * (2e^(2x) – 2)[/tex]
Step 4: Set f'(x) equal to 0 and solve for x. [tex](1/√(1-(e^(2x) – 2x)^2)) * (2e^(2x) – 2) = 0[/tex]
Since the first part of the product [tex](1/√(1-(e^(2x) – 2x)^2))[/tex] is never 0, we can focus on the second part: [tex]2e^(2x) – 2 = 0[/tex]
Step 5: Solve for x. [tex]2e^(2x) = 2 e^(2x) = 1[/tex]
The only way this is true is when 2x = 0, since [tex]e^0 = 1: 2x = 0 x = 0[/tex]
So, the only value of x where f'(x) = 0 is x = 0.
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What is the ratio of hours spent at soccer practice to hours spent at a birthday party? choose 1 answer:
The ratio of hours spent at soccer practice to hours spent at a birthday party can be represented as 2 for every 3
To provide an accurate ratio, I would need the specific number of hours spent at both soccer practice and the birthday party.
Once you provide that information, you can create the ratio by putting the two numbers in the form 2 for every 3.
For example, if you spent 3 hours at soccer practice and 2 hours at a birthday party, the ratio would be 3:2. This means that for every 3 hours spent at soccer practice, you spent 2 hours at the birthday party.
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The table shows how many hours Sara spent at several activities one Saturday.
Activity "Hours
Soccer practice 2
Birthday party 3
Science project 1
What is the ratio of hours spent at soccer practice to hours spent at a birthday party?
Choose 1 answer:
1 for every 2
B
2 for every 1
2 for every 3
3 for every 2
How many degrees are in the acute angle formed by the hands of a clock at 3:30?
The acute angle formed by the hands of a clock at 3:30 is 75 degrees. An acute angle is an angle that measures less than 90 degrees, and in this case, the hour hand is pointing at the 3, which is a 90-degree angle from the 12, while the minute hand is pointing at the 6, which is a 180-degree angle from the 12.
Find the number of degrees in the acute angle formed by the hands of a clock at 3:30, follow these steps:
Determine the position of the hour hand. At 3:30, the hour hand is halfway between 3 and 4, so it's at 3.5 hours. Convert this to degrees by multiplying by 30 (since there are 360 degrees in a circle and 12 hours on a clock, each hour represents 30 degrees).
So, the hour hand is at 3.5 x 30 = 105 degrees.
Determine the position of the minute hand. At 3:30, the minute hand is on 6, which is 180 degrees around the clock.
Find the difference between the two positions.
Subtract the smaller angle from the larger angle: 180 - 105 = 75 degrees.
The acute angle formed by the hands of a clock at 3:30 is 75 degrees.
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If $5,500 is invested at 1.55% interest, find the value (in dollars) of the investment at the end of 6 years if the interest is
compounded as follows. Roung vour answers to the nearest cent.
A. Annualy
B. quarterly
C. Monthly
The value of the investment at the end of 6 years is $6,359.77 if the interest is compounded annually, $6,416.52 if it is compounded quarterly, and $6,437.70 if it is compounded monthly.
What formula is used to for compound interest?
[tex]A = P(1 + r/n)^{nt}[/tex]
where A is the final amount, P is the initial investment, r is the annual interest rate, n is the number of times the interest is compounded per year, and t is the number of years.
A. If the interest is compounded annually, we have:
A = [tex]5,500(1 + 0.0155/1)^{1*6}[/tex] = $6,359.77
B. If the interest is compounded quarterly, we have:
A = [tex]5,500(1 + 0.0155/4)^{4*6[/tex] = $6,416.52
C. If the interest is compounded monthly, we have:
A = [tex]5,500(1 + 0.0155/12)^{12*6[/tex] = $6,437.70
Therefore, the value of the investment at the end of 6 years is $6,359.77 if the interest is compounded annually, $6,416.52 if it is compounded quarterly, and $6,437.70 if it is compounded monthly.
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Using Newton's Method, estimate the positive solution to the following equation by calculating x2 and using X0 = 1. x⁴ – x = 3 Round to four decimal places.
Answer:
To estimate the positive solution to the equation x⁴ – x = 3 using Newton's Method, we can start by taking the derivative of the equation, which is 4x³ - 1. Then we can use the formula X1 = X0 - f(X0) / f'(X0), where X0 = 1, f(X0) = 1⁴ - 1 - 3 = -3, and f'(X0) = 4(1)³ - 1 = 3. Plugging these values into the formula, we get:
X1 = 1 - (-3) / 3
X1 = 2
Now we can repeat the process using X1 as our new X0:
X2 = X1 - f(X1) / f'(X1)
X2 = 2 - (2⁴ - 2 - 3) / (4(2)³ - 1)
X2 ≈ 1.7708
Therefore, the positive solution to the equation x⁴ – x = 3, rounded to four decimal places, is approximately 1.7708.
Step-by-step explanation:
The positive solution to the equation x⁴ – x = 3, estimated using Newton's Method with x₀ = 1 and x₂ as the final estimate, is approximately 1.5329, rounded to four decimal places.
To use Newton's Method to estimate the positive solution to the equation x⁴ – x = 3, we need to find the derivative of the function f(x) = x⁴ – x. This is given by:
f'(x) = 4x³ - 1
We can then use the formula for Newton's Method:
x(n+1) = x(n) - f(x(n)) / f'(x(n))
where x(n) is the nth estimate of the solution.
Starting with x₀ = 1, we can plug this into the formula to get:
x₁ = 1 - (1^4 - 1 - 3) / (4(1^3) - 1) ≈ 1.75
We can then repeat this process using x₁ as the new estimate, to get:
x₂ = 1.75 - (1.75^4 - 1.75 - 3) / (4(1.75^3) - 1) ≈ 1.5329
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