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2 years ago

Multiply three and seven ninths multiplied by five.

Mathematics

1 answer:

fiasKO [112]2 years ago

4 0

Answer:

nineteen and two ninths your welcome :D

Step-by-step explanation:

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The volume of a sphere can be determined by the formula V = 4/3 πr^3, where r is the radius. What is the volume of a sphere with

allochka39001 [22]

Answer:

$V = \frac{99}{7} x^{9}y^{-6}$

Step-by-step explanation:

Given

$V = \frac{4}{3}\pi r^3$

Required

Find V when

$r = \frac{3}{2}x^3y^{-2$

Substitute $\frac{3}{2}x^3y^{-2$ for r in $V = \frac{4}{3}\pi r^3$

$V = \frac{4}{3}\pi * (\frac{3}{2}x^3y^{-2})^3$

Open bracket

$V = \frac{4}{3}\pi * \frac{3}{2}^3 * x^{3*3}y^{-2*3}$

$V = \frac{4}{3}\pi * \frac{27}{8} * x^{9}y^{-6}$

Simplify the fractions

$V = \pi * \frac{9}{2} * x^{9}y^{-6}$

Let

$\pi = \frac{22}{7}$

So:

$V = \frac{22}{7} * \frac{9}{2} * x^{9}y^{-6}$

$V = \frac{11}{7} * \frac{9}{1} * x^{9}y^{-6}$

$V = \frac{99}{7} * x^{9}y^{-6}$

$V = \frac{99}{7} x^{9}y^{-6}$

6 0

3 years ago

Do the ratios 8 16 and 12 24 form a proportion?

yan [13]

Answer:

yes and no

Step-by-step explanation:

Thus, the ratios 6 : 8 and 12 : 16 are equal. Therefore, they form a proportion. Thus, the ratios 24 : 28 and 36 : 48 are unequal. Therefore, they do not form a proportion.

3 0

3 years ago

PLZ HELP ME I NEED THIS FAST

goblinko [34]

The answer is D :) II hope that this helps and if you need a bigger description I can help

7 0

2 years ago

Can you help me please?

wel

The correct answer is true because the number do not repeat

3 0

2 years ago

HELP ME I DON'T UNDERSTAND THIS :(

andriy [413]

Answer:

Step-by-step explanation:

Since the figures are similar then the ratios of corresponding sides are equal, that is

$\frac{AD}{WZ}$ = $\frac{CD}{YZ}$ , substitute values

$\frac{10}{46}$ = $\frac{5}{YZ}$ ( cross- multiply )

10YZ = 230 ( divide both sides by 10 )

YZ = 23 → c

3 0

3 years ago