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3 years ago

Please help The question is in the screenshot down below.

Mathematics

1 answer:

Furkat [3]3 years ago

3 0

Answer:

Scale factor of 2

Step-by-step explanation:

The base legnth of the after image is 8 and the original base legnth is 4 so 8/4=2

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What's the surface area ratio & the volume ratio??<br><br> please help me ASAP!!

Ulleksa [173]

Answer:

Step-by-step explanation:

Volumes of two spheres A and B = 648 cm³ and 1029 cm³

Things to remember:

1). Scale factor of two objects = $\frac{r_1}{r_2}$ [ $r_1$ and $r_2$ are the radii of two circles]

2). Area scale factor = $\frac{(r_1)^2}{(r_2)^2}$

3). Volume scale factor = $\frac{(r_1)^3}{(r_2)^3}$

Volume scale factor Or Volume ratio = $\frac{V_A}{V_B}$

$\frac{(r_1)^3}{(r_2)^3}= \frac{648}{1029}$

$\frac{r_1}{r_2}=\sqrt[3]{\frac{648}{1029} }$

$\frac{r_1}{r_2}=\frac{6(\sqrt[3]{3})}{7(\sqrt[3]{3})}$

$\frac{r_1}{r_2}=\frac{6}{7}$

Therefore, scale factor = $\frac{r_1}{r_2}=\frac{6}{7}$

≈ 6 : 7

Area scale factor Or area ratio = $(\frac{r_1}{r_2})^2=(\frac{6}{7})^2$

= $\frac{36}{49}$

≈ 36 : 49

Volume scale factor or Volume ratio = $\frac{648}{1029}$

= $\frac{216}{343}$

≈ 216 : 343

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3 years ago

What is equal to 6,530,000,000?

dsp73

Gee wiz man I don't know. that is a really big number. have you tried google? :/

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An item is regularly priced at $90. Is is on Sale for 20% off the regular price. How much (in dollars) is discounted from the re

fomenos

Answer:

Step-by-step explanation:

because 20% of 90 is 18

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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