By the Principle of Mathematical Induction, 2ⁿ≥2n is true for all positive integers.
The given inequality is 2ⁿ≥2n.
Let n = 1
2^1 ≥ 2^1
2 ≥ 2 which is true
Inductive Step: Assume 2ⁿ≥2n is true for some arbitrary positive integer k.
We need to prove that 2^(k+1) ≥ 2^(k+1)
2^(k+1) ≥ 2*2^k (by the inductive hypothesis)
2^(k+1) ≥ 2*2^(k+1)
2^(k+1) ≥ 2^(k+1) which is true
Therefore, by the Principle of Mathematical Induction, 2ⁿ≥2n is true for all positive integers.
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The number of bacteria present after 13 hours
The number of bacteria present after 13 hours is 5,306.
What is the number of bacteria after 13 hours?
The number of bacteria present after 13 hours is calculated by applying half-life equation.
N = N₀ x 2^(t / d)
Where:
N₀ is the initial number of bacteria (3,000)N is the final number of bacteria we want to findt is the time elapsed d is the doubling time of the bacteria populationSince the bacteria population grew from 3,000 to 3,600 in 6 hours, the value of d is calculated as follows;
3,600 = 3,000 x 2^(6 / d)
3600/3000 = 2^(6 / d)
1.2 = 2^(6 / d)
log2 (1.2) = 6/d
0.38 = 6/d
d = 6/0.38
d = 15.8 hours
The number of bacteria after 13 hours is calculated as follows;
N = 3,000 x 2^(13 / 15.8)
N = 5,306.5 ≈ 5,306
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The complete question is below:
A culture started with 3,000 bacteria. After 6 hours, it grew to 3,600 bacteria. Predict how many bacteria will be present in 13 hours. round your answer to the nearest whole number.
The equation y = 10x + 15 models the amount of money y, in dollars, that Jack earns shoveling snow for x hours. How many hours does Jack need to work to earn $55?
box of chocolates contains five milk chocolates, five dark chocolates and five white chocolates. You randomly select and eat three chocolates. What is the probability that the first piece is a milk chocolate, the second is a dark chocolate and the third is a white chocolate?
Answer: 25/546 chance
Step-by-step explanation:
total is 15 chocolates.
Five are milk, so chance of getting milk is 1/3. second is dark, so 5/14 chance. Then white, so 5/13 chance
1/3*5/14*5/13=25/546
Piston movement compresses air in this type of air compressor. Medium size compressors Industrial compressors Small compressors Horizontal compressors
Piston movement compresses air in Small compressors type of air compressor
Piston movement compresses air in small compressors. Small compressors, also known as portable compressors, are commonly used for home improvement projects, powering tools, and inflating tires or other objects. The piston moves back and forth inside a cylinder, compressing air and increasing its pressure. The compressed air is then stored in a tank until it is needed to power a tool or inflate an object.
Small compressors are generally less powerful than medium or industrial compressors, but they are more affordable, portable, and easier to use for smaller tasks. They can be powered by electricity or gasoline, and they come in a range of sizes and capacities to meet different needs. Overall, piston-driven small compressors are an efficient and cost-effective way to compress air for various applications.
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50 Points! Algebra question, photo attached. Please show as much work as possible. Thank you!
Michio's answer not correct. He made a mistake when he was trying to convert the equation to logarithmic form. The right answer is 2.57
What is the right way Michio could have converted to logarithmic form?Looking at the equation 2(3)ˣ = 34, the best way to convert to logarithm is by isolating x.
we divide 2(3)ˣ = 34 by 2 on both side.
= (3)ˣ = 17
In logarithm form 3 becomes the base of the log
x = log₃(17)
x= 2.578
The answer above is based on the information seen in the picture.
Michio wanted to find the value of x in the equation 2(3)ˣ = 34. He first converted the equation to log₃2x = 17. Next, he wrote 2x = 3¹⁷ and used a calculator to find x = 64,570,081.5. Was his answer correct? If not, what was his mistake and what is the right answer? Justify your answer.
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Exercice 10;
58 La Figure 2 est une réduction de la Figure 1.
Figure 1
Figure 2
C.
4 cm
7cm
B
D
A 2,1 cm I
1. Calculer le coefficient de réduc
tion existant entre les deux figures.
2. Déterminer les longueurs man-
quantes et les angles manquants.
B
D
Coup de pouce
Calcule le rapport de deux
sur les deux figures.
longueurs correspondantes
Answer:
Step-by-step explanation:
You are told that h is a one to one function with values h(-9)=5 and h(3)= -4 which of the following is true
If function "h" is one-to-one function which is having values h(-9) = 5, and h(3) = -4, then the inverse statement is (d) h⁻¹(-4) = 3.
We know that the function "h" is a one-to-one function, so, it has an inverse function (h⁻¹). To find the inverse function, we need to exchange roles of "x" and "y" and solve for y. This gives:
x = h(y)
y = h⁻¹(x)
The given values of function "h" are h(-9) = 5 and h(3) = -4, we find the values of h⁻¹(5) and h⁻¹(-4):
h(-9) = 5
So, h⁻¹(5) = -9 (by exchanging roles of x and y)
and h(3) = -4
So, h⁻¹(-4) = 3 (exchanging the roles of x and y)
The function "h⁻¹(-4) = 3" is represented in option (d).
Therefore, the correct option is (d).
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What is the standard form of the equation for the circle
A. (X-3)^2+(y-2)^2=32
The standard form of the equation for the circle is (x - 3)² + (y - 2)² = 8.
What is the equation of a circle?In Mathematics and Geometry, the standard form of the equation of a circle is represented by the following mathematical equation;
(x - h)² + (y - k)² = r²
Where:
h and k represents the coordinates at the center of a circle.r represents the radius of a circle.Note: A center that lies on the y-axis simply means the value of h on the x-axis is equal to 0.
Based on the information provided above, we have the following parameters:
Radius, r = √[(3 - 5)² + (2 - 4)²] = √8
Center, (h, k) = (3, 2).
By substituting the given parameters into the equation of a circle formula, we have the following;
(x - h)² + (y - k)² = r²
(x - 3)² + (y - 2)² = (√8)²
(x - 3)² + (y - 2)² = 8.
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Complete Question:
A circle is shown on the coordinate plane. The graph shows a circle with the origin point A at (3, 2), and a point B on its circumference at (5, 4) and intersects the x-axis at 1 and 5 units. What is the standard form of the equation for the circle?
Select the correct answer from each drop-down menu.
Rectangle ABCD is dilated by a scale factor of 1/4 to form A'B'C'D. Point T is the center of dilation and lies on line segment AB as shown. In A'B'C'D. line segment A'B has a slope of ____ and a length of _____.
In A'B'C'D, line segment A'B has a slope of 0 and a length of 5/4
Calculating the slopes and the lengths of the segment A'B'From the question, we have the following parameters that can be used in our computation:
A = (1, 4) and B = (6, 4)
The line AB is a horizontal line that passes through the point y = 4
This means that the slope of the segment A'B' is 0
The length is then calculated as
A'B' = difference in the x-coordinate * scale factor
Substitute the known values in the above equation, so, we have the following representation
A'B' = (6 - 1) * 1/4
Evaluate
A'B' = 5/4
Hence, the length A'B' is 5/4
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Use the given feasible region to find the maximum possible value of the objective function f=5x+6y
The calculated value of the maximum possible value of the objective function is 46
Finding the maximum possible value of the objective functionFrom the question, we have the following parameters that can be used in our computation:
Objective function, F = 5x + 6y
The coordinates of the feasible region are
(0, 6), (1, 6.5) and (2, 6)
Substitute (0, 6), (1, 6.5) and (2, 6) in the above equation, so, we have the following representation
F(0, 6) = 5(0) + 6(6) = 36
F(1, 6.5) = 5(1) + 6(6.5) = 44
F(2, 6) = 5(2) + 6(6) = 46
The maximum value above is 46 at (2, 6)
Hence, the maximum possible value of the objective function is 46
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The students in Ms. Deans chemistry class are exploring chemistry by creating milk art with food coloring, milk, and dish soap. Ms. Dean plans to give each of her 28 students 0.5 cups of milk. How many pints of milk does Ms. Dean need
The table below shows the number of concert tickets bought by people of different age groups. Ages Number of tickets, 14 and under are (17tickets), 15 - 18 (25) ,19 - 22 (38), 23 - 30 (26 ) ,31 - 40 (18), 40 and older (6) When making a histogram of these data, what height would you make the bar for the 15 -18 age range?
We would make the bar for the 15-18 age range with a height of 25 on the y-axis of the histogram.
What is a histogram?A histogram is a type of chart used to represent the distribution of a set of continuous numerical data. It is a graphical representation that consists of a series of vertical bars, where the height of each bar represents the frequency or count of observations falling within a specific interval or "bin" of values.
To make a histogram, we need to plot the age groups on the x-axis and the corresponding number of tickets on the y-axis. The bars in the histogram should represent the frequency of each age group.
From the given data, the number of tickets bought by people of age 15-18 is 25. Therefore, we would make the bar for the 15-18 age range with a height of 25 on the y-axis of the histogram.
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If angle a is 125 degrees, what is angle h
what are the answers to these questions?
The values of the expression are,
⇒ x₂ = - 9.4
⇒ x₃ = - 9.4 - (e³⁸ + 38 + 1) / (2e³⁸ + 2)
Given that;
Expression is,
e²ˣ = - 2x - 1
Hence, Function is,
⇒ f (x) = e²ˣ + 2x + 1 = 0
⇒ f' (x) = 2e²ˣ + 2
Now, By newton's method;
⇒ x (n + 1) = x (n) - f (x (n)) / f' (x(n))
⇒ x₂ = x₁ - f (x₁) / f' (x₁)
⇒ x₂ = - 5 - (e¹⁰ + 10 + 1)/(2e¹⁰ + 2)
⇒ x₂ = - 5 - (e¹⁰ + 11)/(2e¹⁰ + 2)
⇒ x₂ = - 5 (2.6 + 11) / ( 2 x 2.6 + 2)
⇒ x₂ = - 68 / 7.2
⇒ x₂ = - 9.4
⇒ x (n + 1) = x (n) - f (x (n)) / f' (x(n))
⇒ x₃ = x₂ - f (x₂) / f' (x₂)
⇒ x₃ = - 9.4 - (e³⁸ + 38 + 1) / (2e³⁸ + 2)
Thus, The values of the expression are,
⇒ x₂ = - 9.4
⇒ x₃ = - 9.4 - (e³⁸ + 38 + 1) / (2e³⁸ + 2)
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The volume of a cube that is 2.9 x 5 x 4
The volume of the cuboid is 58 cubic units.
What is a cuboid?A cuboid is a 3 dimensional figure that has six rectangular faces. So that the volume of a cuboid can be determined by;
volume of cuboid = length x width x height
From the given question, we have;
the volume of a cuboid that is 2.9 x 5 x 4 can be determined as follows;
volume of cuboid = length x width x height
= 2.9 x 5 x 4
= 58
The volume of the cuboid with the given dimension is 58 cubic units.
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I need help please
here is the picture is about Row Ops
Solving the given matrix operation gives us the solution as: y = -1.4
How to solve simultaneous equations with matrix?From the matrix expression given, we can say that the simultaneous equations it represents are:
x - 4y = 8
3x - 2y = 10
We are told to Multiply eq 1 by -3 and add to row 2 and this means we have:
eq 3: -3x + 12y = -24
Adding to row 2 gives us:
10y = -14
y = -1.4
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PLEASE SOMEONE HELP ME THIS IS SO HARD. ILL GIVE 60 POINTS TO WHOEVER HELPS ME. PLEASE I GIVE BRAINLIEST
Answer:
B
Step-by-step explanation:
Vertex form is: y=a(x-h)²+k
Vertex would be (h,k)
Based on this, the only equation in vertex form is B
Answer:
Step-by-step explanation:
B is the easiest way to see vertex because that is the vertex form:
y=a(x-h)²+k where (h,k) is the vertex
Vertex (2, 27)
I need help with this AP Stats question.
The probability that the team wins the debate is 0.6475
How to solve the probabilityP(win) = P(win | S)P(S) + P(win | J)P(J) + P(win | R)P(R)
= (0.25)(0.2) + (0.6)(0.35) + (0.85)(0.45)
= 0.6475
Therefore, the probability that the team wins the debate is 0.6475.
In order to simulate the probability that a Sophomore is never selected to give the closing argument in the next 5 debates, we can use the following steps:
Create a table of random digits with enough rows and columns to simulate the 5 debates. Each row represents a debate and each column represents a team member.
Assign the digits 0, 1, and 2 to represent the events that a sophomore, junior, and senior gives the closing argument, respectively.
Starting from the first row and first column, read the digits from the table and determine which team member gives the closing argument for the first debate.
If a sophomore is selected, record a 0 for that debate. Otherwise, record a 1.
Repeat steps 3 and 4 for the remaining debates, filling in the table as you go.
Calculate the proportion of simulations where a Sophomore is never selected to give the closing argument in the next 5 debates.
Repeat steps 1-6 many times (e.g., 10,000 times) to get a more accurate estimate of the probability.
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The amount of laps remaining, y, in a swimmer's race after x minutes can be represented by the graph shown.
coordinate grid with the x axis labeled time in minutes and the y axis labeled number of laps remaining with a line from 0 comma 30 to 10 comma 0
Determine the slope of the line and explain its meaning in terms of the real-world scenario.
The slope of the line is negative one third, which means that the swimmer completes a lap in one third of a minute.
The slope of the line is −3, which means that the swimmer will complete 3 laps every minute.
The slope of the line is 10, which means that the swimmer will finish the race after 10 minutes.
The slope of the line is 30, which means that the swimmer must complete 30 laps in the race.
The given slope of the graph is explaining about the swimmer's lap completion throughout the time of 10 minutes.
In the given graph on the x-axis, we can find the time (in minutes) of 10 minutes.
On the y-axis, the graph represents the number of laps the swimmer is completing.
When we observe closely, the slope is giving very important information. At initial time=0, the no. of laps remaining for swimmer is 30. We can show this data clearly as below:
Number of laps remaining----------Time (in minutes)
30 --- 0
27 --- 1
24 --- 2
21 --- 3
18 --- 4
15 --- 5
12 --- 6
9 --- 7
6 --- 8
3 --- 9
0 --- 10
From the above slope data, we can conclude that for every 1 minute of time elapsing, the swimmer is completing 3 laps.
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Which statements are true about a decagonal (10-sided) pyramid? Select 3 options.
It has one face that is a decagon.
It has two faces that are decagons.
It has 11 faces.
It has 20 edges.
It has 20 vertices.
The correct statements are,
B)It has two faces that are decagons.
C)It has 11 faces.
D)It has 20 edges.
What is decagonal pyramid?
A decagonal pyramid is a solid whose base is a decagon or a ten sided figure, regular or irregular. The surfaces are ten isosceles triangles, in case of a regular decagonal pyramid with all the ten vertices meeting at a point.
Here The decagonal prism is formed by two regular decagons as its bases and 10 squares as its other faces. the top of the decagonal prism is a regular decagon, so is the bottom face.
We know that decagonal pyramid has 11 faces and 20 edges and 11 vertices.
Hence the correct statements are,
B)It has two faces that are decagons.
C)It has 11 faces.
D)It has 20 edges.
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In the first stanza, how does the Pebble's exaggeration of its
accomplishments add to the author's purpose?
It introduces the Pebble's fear of being trampled.
It illustrates the Pebble's disappointment in nature.
It establishes impossible expectations for the Acorn.
It shows a connection between the Acorn and nature.
In the stanza, the exaggeration establishes impossible expectations for the Acorn.
How is exaggeration used here?In the outset, the Pebble boastfully consigns itself as the "boldest" and "hardiest" formation in the woodlands.
On the other hand, the Acorn is portrayed as a feeble and delicate being--establishing unreachable objectives for it to accomplish for transforming into an authoritative and resilient Oak tree.
This distinction evokes a sense of tribulation that need to be overcome by the Acorn in order to attain its full potential.
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Which of the following is a biconditional statement?
A) If x2 = 25, then x = 5 or x = –5
B) x = 5 if x2 = 25
C) x = 5 if and only if x + 5 = 10
D) If x ≠ 5 then x2 ≠ 25
Answer:
C) x = 5 if and only if x + 5 = 10
Step-by-step explanation:
You want to identify the biconditional statement among those that are given.
ConditionalA conditional statement is of the form ...
If P, then Q.
ConverseThe converse of the above conditional statement is ...
If Q, then P.
BiconditionalWhen both the statement and its converse are intended, the statement can be written as the biconditional ...
If and only if P then Q.
The given example of a biconditional statement is ...
x = 5 if and only if x +5 = 10.
__
Additional comment
This can be abbreviated ...
Iff P then Q
meaning "if P then Q, and if Q then P", or "if and only if P, then Q."
How many seconds does the ball reach its maximum height using the equation
h(t)= -0.2t^2 + 2t
5 seconds.
Step-by-step explanation:1. Find the "x" position of the vertex of the equation.In a function expressing altitute (h) in terms of time (t), finding the vertex will provide the time and altitute when the object reaches the maximum height. Therefore, let's use the vertex formula to see exactly when this happens:
"x" vertex value: [tex]-\dfrac{-b}{2a}[/tex]
a) For using that equation, first write the given equation on its standard form.
Standard form of quadratic equations: [tex]ax^{2} +bx+c=0[/tex]
b) You can substitute h(t) by 0 on the origina equation:
[tex]-0.2t^{2} +2t=0[/tex]
c) Idenfity the coefficients.
a= -0.2, beacuse "t²" is being multiplied by -0.2.
b= 2, beacuse "t" is being multiplied by 2.
d) Substitute in the formula and calculate.
[tex]\sf X\,value_{Vertex} =-\dfrac{-b}{2a}=-\dfrac{-(2)}{2(-0.2)}=-\dfrac{-(2)}{-0.4}=5[/tex]
2. Answer.So the "x" value of this h(t) equation is located on x= 5, therefore, the maximum point happens at x= 5. Since this is an equation that expresses altitute in terms of time, this means that 5 seconds after the object starts its movement it reaches its maximum altitute.
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Rafael finished the Boston Marathon ( 26.2 miles) in 4.75 hours. At this pace, how long would it take him to run a 50 mile marathon in Washington D.C?
The time taken by the runner is equal to 9.064 hours.
How to determine the time taken by a runner
In this problem we find the case of runner taking a time (t), in hours, to run a certain distance (d), in miles, at constant speed (v), in miles per hour. The kinematic equation is now introduced:
v = d / t
Now we proceed to determine the missing time:
(26.2 mi) / (4.75 hours) = (50 mi) / t
t = 9.064 h
The runner takes a time of 9.064 hours to run a distance of 50 miles.
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Correct answer gets brainliest
Answer:
D. its a two dimensional object
Answer:
A. It is a polygon
C. It is a one-dimensional object
The shape is a polygon in two dimensions since a polygon must have at least three straight sides.
Drag the cards to create a number that matches these rules.
. The number ends in the thousandths place.
2 is the nearest one when rounding
.
A 2 is in the thousandths place
.
1 1 2.2
Answer is 16.4. Hope this helpsAnswer:
Step-by-step explanation:
ACTIVITY 1: Determine whether each of the following is a proposition or mere sentence. It is a
Proposition if the given is either true or false and Mere Sentence if the given can be both true and
false at the same time.
Answer:
number 1111q
Step-by-step explanation:
the answer is 1
2. Graph x² + (y-2)² = 36
Answer:
The graph will be a circle with center (0, 2) and radius 6.
James is performing statistical analysis to determine whether the effects of the treatment in his experiment might actually have reflected a chance occurrence; Kendra is performing an analysis to combine the results of a number of experiments to yield an overall conclusion. James is performing a _____, Kendra, a _____.
Hello !
James is performing statistical analysis to determine whether the effects of the treatment in his experiment might actually have reflected a chance occurrence; Kendra is performing an analysis to combine the results of a number of experiments to yield an overall conclusion. James is performing a significance test, Kendra, a meta-analysis.
A wheelchair ramp is in the shape of a triangular prism. It has a base area (B) of 37.4 and a height of 5 yards. Find the volume of the ramp.
The volume of the ramp ishow many yd3
Answer:
Step-by-step explanation:
The formula for the volume of a triangular prism is:
V = Bh, where B is the base area and h is the height of the prism.
Substituting the given values, we get:
V = 37.4 x 5
V = 187 yd^3
Therefore, the volume of the ramp is 187 cubic yards.
