Answer:
Step-by-step explanation:
a. 4cm * 9cm * 2cm = 72 cm^3
b. 5m * 4m * 9m = 180 m^3
c. 10dm * 36 dm^2 (because the square could also be represented as 6cm * 6cm) =360 dm^3
d. (56mm)^3 = 175616 mm^3
e. 10 m * 1 m^2 (because of the square) = 10m^3
To tell which cubic unit of measure that should be used:
⇒ we should examine the unit of the side lengths
First question (a):
a rectangular prism that is 4cm by 9 cm by 2cm⇒ must use cm³ as cubic unit of measure
⇒ as all sides are centimeters
⇒Answer: cubic centimeters or cm³
Second question(b):
a rectangular prism that is 5m by 4m by 9m⇒ must use m³ as cubic unit of measure
⇒ as all sides are meters
⇒Answer: cubic meters or m³
Third question(c):
a rectangular prism that gives only two side length: 10dm, 6dm⇒must use dm³ as cubic unit of measure
⇒ as all of the sides given are in decimeter
⇒Answer: cubic decimeter or dm³
Fourth question(d):
a cube that gives only one side length: 56mm⇒ must use mm³ as cubic unit of measure
⇒ as all the given sides with side lengths are in millimeters
⇒ Answer: cubic millimeters or mm³
Fifth question(e):
a rectangular prism with two side length: 1m, 10m⇒ must use m³ as cubic unit of measure
⇒ as all given sides with side lengths are in meter
⇒Answer: cubic meter or m³
In general:
⇒ when faced with these problems
⇒ look to the unit of measure of the majority of the side lengths
⇒ look to the unit of measure that the problem wants for the answer
Hope that helps!
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Find the value of the following:
1. Decrease 1.25km by 0.6%
2. Decrease 64 g by 12 ½%
3. Decrease 124 L by 15%
4. Decrease 350m² by 42%
Step by step working please!
The required decreased value is given by 1.2425, 56g, 105.4L, 203m²
What are percentage?
percentage is the ratio of composition of matter to the overall composition of matter multiplied by 100.
1) Decrease 1.25km by 0.6%
0.6% of 1.25km = 0.0075
so total decrease = 1.25 - 0.0075
= 1.2425
similarly,
2.) Decrease 64 g by 12 ½%
12 ½% of 64g = 8g
so total decrease = 64-8
= 56g
3. Decrease 124 L by 15%
15% of 124 = 18.6L
so total decrease = 105.4L
4. Decrease 350m² by 42%
42% of 350m² = 147m²
so total decrease = 203m²
Thus, the required decreased value is given by 1.2425, 56g, 105.4L, 203m²
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Find the following, giving your answers
to 1 decimal place.
10 cm/
6 cm
8 cm
a) The volume of the cone.
b) The curved surface area of the cone.
Answer:
a) 301.6 cm³
b) 188.5 cm²
Step-by-step explanation:
The volume and lateral surface area of the cone can be found using the given dimensions with the given formulas. All that is needed is to substitute the appropriate values and do the arithmetic.
__
a) volumeThe volume is given by the formula ...
V = 1/3πr²h
The dimensions are given on the diagram: r = 6 cm, h = 8 cm. Using these values in the formula, we find the volume to be ...
V = 1/3π(6 cm)²(8 cm) = 96π cm³ ≈ 301.6 cm³
The volume of the cone is about 301.6 cm³.
__
b) areaThe lateral area of the cone is given by the formula ...
A = πrl
The dimensions are given on the diagram: r = 6 cm, l = 10 cm (the slant height). Using these values in the formula, we find the area to be ...
A = π(6 cm)(10 cm) = 60π cm² ≈ 188.5 cm²
The area of the curved surface is about 188.5 cm².
is the square root parent function.
OA. F(x)=√x + 1
OB. F(x)=√x
O C. F(x) = x
OD. F(x) = x²
If two angles are supplementary, and the angle measurements are in the ratio 3:1, what is the measure of the smaller angle?
Answer:
The measure of smaller angle = 45°
Step-by-step explanation:
Finding the unknown angle
Ratio of the supplementary angles = 3 :1
The angles are 3x , x
Supplementary angles add up to 180°
3x + x = 180
4x = 180
x = 180 ÷ 4
x = 45°
3x = 3*45 = 135°
the answer to this is 40=
Step-by-step explanation:
I did this
On a piece of paper, graph y-5>2x-10. Then determine which answer
choice matches the graph you drew.
A
B
C
D
(21)
(0.5)
OA. Graph A
B. Graph B
C. Graph C
D. Graph D
(0.5)
((3.1)
(0.5)
(3.1).
(0.5)
Answer:
Graph B
Step-by-step explanation:
When graphing inequalities:
< or > : draw a dashed line≤ or ≥ : draw a solid line< or ≤ : shade under the line> or ≥ : shade above the lineGiven inequality:
[tex]y-5 > 2x-10[/tex]
Rearrange the given inequality to make y the subject:
[tex]\implies y-5+5 > 2x-10+5[/tex]
[tex]\implies y > 2x-5[/tex]
Therefore, we need to draw a dashed line and shade above it.
To draw the line:
Replace the > with = to find two points on the line:
[tex]\implies y=2x-5[/tex]
[tex]x=0 \implies y=2(0)-5=-5 \implies (0,-5)[/tex]
[tex]x=3 \implies y=2(3)-5=1 \implies (3,1)[/tex]
Plot the two found points: (0, -5) and (3, 1)
As the inequality is y > 2x - 5
Draw a dashed straight line through the two points.Shade above the line.The inequality equation is solved and the solution is plotted on the graph
What is an Inequality Equation?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
y - 5 > 2x - 10
On simplifying , we get
Adding 5 on both sides , we get
y > 2x - 5
where 2 is the slope and 5 is the the intercept
Now , let the first point be P ( 0 , -5 )
when x = 0 and y = -5
-5 > -5
And , the graph of the inequality is plotted
Hence , the inequality is solved
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Each x block shown on the scale has the same weight. See if you can answer the question. When you have your answer, enter it in the box below and select Submit to see if you are correct. How Much Does Each "x" Weight Weigh?
The value of x, given the data From the question is 2
Data obtained from the questionOn the left = 3 + 3xOn the right = 2x + 5Value of x =?How to determine the value of xLeft = Right (since the system is balanced)
3 + 3x = 2x + 5
Collect like terms
3x - 2x = 5 - 3
x = 2
Complete question
See attached photo
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If it is already 110F degrees below zero, and the temperature drops another 40 F degrees, how cold is it now?
Answer:
-150
or 150 degrees below 0
Step-by-step explanation:
The temp is -110. Dropping another 40 degrees means subtracting 40.
-110 - 40 = -150
How can you find the coefficients of any row of Pascal’s triangle?
A) combinations
B) factorials
C) expansion
D) binomial expression
The coefficients of any row of Pascal’s triangle can be calculated using (A) combinations
How to determine the coefficients?A binomial expansion is represented as:
[tex](a + b)^n = ^nC_x a^xb^{n - x}[/tex]
Where:
x >= 0 and x <= n
In the above expression, the coefficient is:
[tex]^nC_x[/tex]
The above represents the xth term of a Pascal triangle and it is a combination expression
Hence, the coefficients of any row of Pascal’s triangle can be calculated using (A) combinations
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Match each inequality to the number line that represents its solution:
Step-by-step explanation:
I have solve all the questions and your work is to match with that option
Work out the size of angle x.
Answer:
according to my calculation it is 13
Step-by-step explanation:
hope I helped
red was rotated to form blue
describe the rotation
Red was rotated to form blue as the figure was turned in different directions.
What is rotation?
A rotation simply means a transformation that turns a figure about a fixed point called the center of rotation.
An object and its rotation are simply the same shape and size, but the figures may be turned in different directions. In this case, red was rotated to form blue.
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A music-streaming service charges $9 per month for a single user. Additional users within the same household can be added for $3 per month.
Write an equation that shows how the monthly cost, y, depends on the number of additional users in the household, x.
Do not include dollar signs in the equation.
y=
Answer:
y=9+3x
Step-by-step explanation:
It starts with y=.
Then you have to put the 9 for the streaming service.
Then you add.
You multiply by 3 for all the x in the household plan.
Answer:
y = 9 + 3x
Step-by-step explanation:
$9 per month for a single user
$3 per month for additional users
Find monthly cost, y, where additional cost is represented by x
The cost for a single user = fixed cost (It remains constant)
The cost of the additional user = variable (It increases with the number of users)
The monthly cost increases with the number of additional users
The monthly cost = cost of single user + the cost of additional users
y = 9 + 3x
A software company wants to get an idea of their customers' level of satisfaction with their software. To do so, they included a phone number on the packaging of their most recent software release, with the message, "If you have any concerns with the product, please call this number." Based on the overwhelmingly negative response they received from these calls, the company decided to stop selling the product.
What could be wrong with their decision?
A.
The phone system screened out certain positive comments because of a malfunction.
B.
The release of the software coincided with the spread of a virus which affected the performance of the program.
C.
The note on the package only told customers to call in the event that they had a concern, which could bias the results negatively.
D.
The customers were misinformed about the purpose of the program.
Answer:
C. The note on the package only told customers to call in the event that they had a concern, which could bias the results negatively.
Explanation:
Since customers were only told to call if they had concerns, all of the calls were about concerns or problems that they were having - meaning all of the calls were negative. However, they were never informed to call if they were happy or content with the product, meaning they were never informed of the people who had positive comments, only negative.
-35÷6=
-350÷6-350-6=
350 - 60 =
Answer:
The first one is 5.83 or -5 5/6
The second one is -414 1/3
The last one is 290
Do you know how fast last year's winner was traveling? san francisco laser boat.
The average speed of the Australian team's laser boat in the San Francisco final was 68.81 km/h.
What is the laser boat?
The laser boat is a type of boat that uses the wind to move on the water. This type of boat is used in the SailGP Championship.
In the phase of San Francisco, the United States the winner was the team of Australia that had an average speed of 68.81 km/h and a maximum of more than 90 km/h.
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A system of equations has 1 solution. If 4x - y = 5 is one of the equations, which could be the other equation?
A.y=-4x+5
B. Y=4x -5
C.2y=8x-10
D.-2y=-8x-10
answer :
A. y = – 4x + 5
Step-by-step explanation:
make y = 4x-5 equal to each of the answer choices and see if you get an answer
STEPS:
1.
make 4x - y = 5 into a y= equation
4x - y = 5 is y = 4x-5
2.
then make y = 4x-5 equal to each of the answer choices and see if you get an answer
A.
4x-5 = -4x+5
8x = 10
x = 10/8 = 5/4
yes, it has one solution
its also an intersecting line because
one line has 4x and the other has -4x
4x and -4x are slopes and opposite signs so
the lines are intersecting
B.
4x-5 = 4x-5
since they are the same on both sides of the equal sign they have
infinite solutions
they are also both the same line
C.
2y=8x-10 when simplified is y=4x-5
so its just like choice B
they are also both the same line
4x-5 = 4x-5 which is
0 = 0
since they are the same on both sides of the equal sign
infinite solutions
they are also both the same line
D.
-2y=-8x-10 when simplified is y=4x+5
4x-5 = 4x+5 when you work it out you get the answer
0 = 5
since when you solve the equation and get 0 = 5
that means its there is no solution
its also parallel line because both lines have 4x as a slope
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What is the solution to this system of equations? x + y = 2 and y - z = -3 and x + y - z = 0
Answer:
x = 3
y = -1
z = 2
Step-by-step explanation:
if x+y = 2, and x+y-z = 0, then we can substitute 2 for x+y. this means 2-z=0, meaning z=2. if y-z=-3, then y-2=-3, and y=-1. x+y=2 which means x-1=2 so x=3. plug in the values to check your answer.
Which statement describes how the graph of the given polynomial would change if the term -3x^6 is added?
y=2x^6+9x^5-7x^3-1
The correct answer will be option B which is the ends of the graph will extend in the opposite direction.
What is a graph?A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.
Given equation is as follows:-
y = 2x⁶ + 9x⁵ -7x³ -1
When the term -3x⁶ is added the equation will be reduced in the following form.
y = -3x⁶+2x⁶ + 9x⁵ -7x³ -1
y =-x⁶+9x⁵ -7x³ -1
When we plot the graph of the above equation we will see that the graph will be reduced to the form in which both the ends of the graph lie opposite to each other.
The graph of the equation is attached with the answer below.
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Answer:
B is the correct answer
Step-by-step explanation:
What is the measure of m? 6 3 n 18 m = [?] Give your answer in simplest form. Enter
By solving a system of equations, we will see that m measures 12 units.
How to get the measure of m?
Notice that we have 3 right triangles.
Then we can write the equations:
cos(a) = 6/m
For the small triangle on the left, where m is the hypotenuse.
cos(a) = m/(6 + 18)
For the larger triangle (the one composed of the two triangles).
Where in both equations, angle "a" is the one in the top left.
Then we have the system of equations:
cos(a) = 6/m
cos(a) = m/(6 + 18)
Then we can write:
6/m = m/(6 + 18)
If we simplify the expression, we get:
6*(6 + 18) = m^2
6*(24) = m^2
144 = m^2
√144 = m = 12
Then we conclude that m measures 12 units.
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Match each data set with its standard deviation.
Round your answer to the nearest tenth, if necessary.
Click on the link to use the GeoGebra graphing calculator to assist you.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
{74,76,77,77,78,82,130}
{8,74,76,77,77,78,82}
{74,74,76,77,77,78,82}
Answer:
don't know but please keep trying up
Figure it out..............................................
Asap please!!!!!!! if jkl=rst, which congruences are true by cpctc? check all that apply.
a. l=r
b. jk=rs
c. k=s
d. j=s
e. kl=st
f. jl=rs
Answer:
b, c e
Step-by-step explanation:
A congruence statement lists corresponding parts in the same order. CPCTC says corresponding parts are congruent.
__
To see if any particular statement is consistent with CPCTC, identify the locations of the referenced parts in the congruence statement. If they match, the congruence is true
a. l = r ... jkl = rst . . . . not in the same place
b. jk = rs ... jkl = rst . . . . a match; true
c. k = s ... jkl = rst . . . . a match; true
d. j = s ... inconsistent with (c)
e. kl = st ... jkl = rst . . . . a match; true
f. jl = rs ... inconsistent with (b)
Statements b, c, e are consistent with the congruence statement, and are true by CPCTC.
Tom has a fair six-sided spinner. he spins it three times. the probability that the spinner will land on white is
1/6.
calculate the probability that the spinner will land on white for all three spins.
The probability that the spinner will land on white for all three spins is 1/216
How to determine the probability?The probability is given as:
P(White) = 1/6
The event that the spinner lands on white all three times is:
White White White
The probability is then represented as:
P = P(White)^3
So, we have:
P = (1/6)^3
Evaluate
P =1/216
Hence, the probability that the spinner will land on white for all three spins is 1/216
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What is the median of the following data set?
(3, 4, 2, 8, 5)
02
03
04
06
Answer:
4
Step-by-step explanation:
The median is the middle number when the list is sorted from least to greatest or greatest to least.
We make this list to get 2,3,4,5,8 or 8,5,4,3,2 and the middle number in both lists is 4.
In the diagram below, AB is parallel to Co What is the value of y?
Answer:
D
Step-by-step explanation:
interior angles = 180
180-72
Describe the translation from f ( x ) = I x I... to f ( x ) = I x - 1 I + 11.
what equation describes a linear function
Answer: y = f(x) = a + bx y = f(x) = a + bx y = f(x) =
explanation: The following is the formula for a linear function. y = f(x) = a + bx y = f(x) = a + bx y = f(x) = One independent variable and one dependent variable make up a linear function.
Answer:
I don't knowwwwwwwwwwwwwwww
In triangle QRS, angle Q measures 33.7°, angle R measures 52.3°, and angle S measures 94°. Based on the information that is provided, which could be a correct set of sides for this set of angles?
side QR = 7 cm , side RS = 10 cm , side QS = 12.6 cm
side QR = 10 cm, side RS = 7 cm, side QS = 12.6 cm
side QR = 12.6 cm, side RS = 10 cm, side QS = 7 cm
side QR = 12.6 cm, side RS = 7 cm, side QS = 10 cm
Answer:
side QR = 12.6 cm, side RS = 7 cm, side QS = 10 cm
Step-by-step explanation:
The side opposite to biggest angle is the longest side
In ΔQRS,
∠S > ∠R > ∠Q
∠S is the biggest and ∠ Q is the smallest angle.
So, the side opposite to ∠S, QR is the longest side and the side opposite o ∠Q , RS is the smallest side.
QR > QS > RS
QR = 12.6 cm ; QS = 10 cm and RS = 7 cm
can someone confirm why it's not? im *pretty* sure it's d?
Answer:
yes it is I'm sure of it ok.
Shelby bought 2 cans of paint and 3/4 of a pint of special paint additive formulated to reduce mildew. Before painting her house, she divided the additive equally between the 2 cans of paint. How much additive did she put in each can?
Over a females lifetime, how many eggs will mature and travel to the uterus? 4 hundred thousand 5 hundred 4 hundred 3 hundred thousand
Over a female lifetime, about 300 hundred to 400 hundred will mature and travel to the uterus
How many eggs reach maturation and transfer to the uterus in a female lifetime?At birth, about 1 million eggs are present but by the period a person reaches adolescence, only about 300,000 are still there since a lot of follicles and oocytes would have been engaged to start the development and maturation process.
Only about three hundred to four hundred of them will ripe and ovulate over a woman's reproductive lifespan due to the decline in a woman's fertility as she matures.
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