I now the shape for not cubes i need explain

Answers

Answer 1

Answer:

Answer:

The bottom right, middle top, and bottom left are NOT cubes.

Step-by-step explanation:

Cubes are defined as a three dimensional object with the same length, width, and height. Since the square on the bottom left is two dimensional, It is not a cube. Since the hexagon on the bottom right is two dimensional, It can't be a cube. The Middle top shape doesn't have the same length height as it's width is, so it is not a cube. The rest are cubes.

Answer 2

Answer:

Answer: Circle 1st, 2nd, 4th, and 6th

Step-by-step explanation:

A cube is 4 perfect squares in a 3-D shape. Only shape 3 and 5 show this.

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Solve for z in the problem below:4/5 = z/20

A.z = 16

B. z = 80

C. z = 13

D. z = 5

Answers

Answer:

A. z = 16

Step-by-step explanation:

Multiply both sides by 20 isolate the variable z.

$(4)/(5) *(z)/(20)$

$(4)/(5) *20 = (z)/(20) *20$

$z = (4)/(5) *20$

Multiplying $(4)/(5)$ by 20 will give us 16.

$(4)/(5) *(20)/(1) = (80)/(5)$ $= 16$

Therefore, z is equal to 16.

Answer:

Step-by-step explanation:

Given

$(4)/(5)$ = $(z)/(20)$

Multiply both sides by 20 to clear the fractions

16 = z → A

The graph below shows the relationship between the number of months different students practiced boxing and the number of matches they won. Part A: what is the approximate y-intercept of the line of best fit and what does it represent?

Part B: write the equation for the line of best fit in the slope- intercept form and use it to predict the number of matches that could be won after 13 months of practice.

Show your work and explain your answer. Include the points used to calculate the slope

Answers

Short Answer:
Slope = 1.5
y = 1.5x + 3.75 <<<< Line.
Question A
The y intercept is between 3 and 4 1/2. Each square is worth 1.5 on the y axis. 1/2 of 1 square then is 0.75. So the y intercept in this case is 3.75 as a rough estimate.

The y intercept represents the number of victories a student can expect with absolutely no training whatever. It cannot go into the negative region. That would have no meaning at all in the outside world. There cannot be < 0 weeks of training when talking training training time.

Question B
The way to solve this part of the question is to use two well defined points.

One point would be (7.5, 15) and the other could be the y intercept since it is pretty clear. (0,3.75)

Step One
Find the slope
m = (y2 - y1) / (x2 - x1)

Givens
y1 = 15
y2 = 3.75
x1 = 7.5
x2 = 0

Formula
$m=(y2 - y1)/(x2 - x1)$ substitute and solve

m = $(15 - 3.75)/(7.5 - 0)$
m = 11.25 / 7.5 = 1.5

Note
We are finding the point associated with the line and not the closest raw data point.

So far what we have is
y = mx + b
y = 1.5x + b

Step Two
Find b.

We already have the y intercept, but we should confirm it with the other point. b = 3.75 from Problem A.

However
y = 15
x = 7.5

y = 1.5x + b
15 = 1.5*7.5 + b
15 = 11.25 + b Subtract 11.25 from both sides.
15 - 11.25 = b
b = 3.75 which is just the answer we got for problem A

Answer
y = 1.5x + 3.75 <<<<

If x = 13 then just put it in the equation above.
y = 1.5x + 3.75
y = 1.5*13 + 3.75
y = 23.25 victories. Since I don't know what your choices are, I would round down to 23.

May u plz help me I don’t understand?