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xxTIMURxx [149]

3 years ago

5

If pablo does a experiment 100 times, will the relative frequency be more accurate or less accurate than if he did the experimen

t 40 times
Why?

1 answer:

Umnica [9.8K]3 years ago

6 0

It would be more accurate because it would have been done more times and would have been given a better chance to find the experiments accuracy.

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What is y if the ordered pair (25, y) is a solution of the equation shown?

Lesechka [4]

Answer:

4

Step-by-step explanation:

y = 1/5x -1

Let x = 25

y = 1/5(25) -1

= 5-1

= 4

y =4

3 0

3 years ago

Read 2 more answers

Help me with math someone

fiasKO [112]

My dad beats me everyday and he told me that I’m a failure

4 0

3 years ago

Please someone with a good heart help me ;-;<br>

jeyben [28]

Answer:

87.5 ft^3

Step-by-step explanation:

Formula:

Volume = length x width x height.

Dimensions:

Length = 3 1/2 ft = 7/2 ft

Width = 5 ft

Height = 2 1/2 ft = 5/2 ft

Substitute and Find Volume:

Volume = (7/2 ft) x (5 ft) x (5/2) ft

Volume = 87.5 ft^3

6 0

2 years ago

Three solid shapes A, B and C are similar.

Archy [21]

Answer:

$\frac{3}{10}$

Step-by-step explanation:

step 1

Find the ratio of the height of shape A to the height of shape B

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z-----> the scale factor

x----> surface area shape A

y----> surface area shape B

so

$z^{2} =\frac{x}{y}$

substitute

$z^{2} =\frac{4}{25}$

$z =\frac{2}{5}$

therefore

the ratio of the height of shape A to the height of shape B is equal to

$\frac{hA}{hB}=\frac{2}{5}$

step 2

Find the ratio of the height of shape B to the height of shape C

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z-----> the scale factor

x----> volume shape B

y----> volume shape C

so

$z^{3} =\frac{x}{y}$

substitute

$z^{3} =\frac{27}{64}$

$z =\frac{3}{4}$

therefore

the ratio of the height of shape B to the height of shape C is equal to

$\frac{hB}{hC}=\frac{3}{4}$

step 3

Find the ratio of the height of shape A to the height of shape C

we have

$\frac{hA}{hB}=\frac{2}{5}$

$\frac{hB}{hC}=\frac{3}{4}$

Multiply

$(\frac{hA}{hB})(\frac{hB}{hC})=\frac{hA}{hC}$

so

$(\frac{2}{5})(\frac{3}{4})=\frac{6}{20}=\frac{3}{10}$

8 0

4 years ago

Two rectangles are similar. One has a length of 11 cm and a width of 10 cm, and the other has a width of 7 cm. Find the length o

timurjin [86]

Use a proportion

11 x
--- = ---
10 7

just solve for x

8 0

3 years ago