3 years ago

What will happen to the volume of a cylinder if the radius is halved?

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

3 0

Answer:

A. 1/4 as large

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

Cut the radius in 1/2

V = pi (1/2r)^2 h

V = pi (1/4) r^2 h

V = 1/4 pi r^2 h

The volume is 1/4 what is was before we cut the radius in 1/2

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What is the following sum? 5(3squareroot x) +9 (3squareroot x)

Volgvan

$\sf{14(\sqrt[3]{x}) }$

Step-by-step explanation:

$5(\sqrt[3]{x})+9(\sqrt[3]{x})\\\\(5+9)(\sqrt[3]{x})\\\\14(\sqrt[3]{x})$

7 0

2 years ago

Which of the following proportions could be used to convert 6 days to hours?

nekit [7.7K]

Answer:

Step-by-step explanation:

24 hours---------->1 day

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Cross multiplying:

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4 0

3 years ago

What is the missing length.

nasty-shy [4]

Answer:

$KS = 12$

Step-by-step explanation:

Given that ∆KLM ~ ∆RSK, $\frac{KL}{KR} = \frac{KM}{KS}$ (similarity theorem)

KL = 65

KR = 65 - 52 = 13

KM = 60

KS = ?

$\frac{65}{13} = \frac{60}{KS}$

Cross multiply

$65*KS = 60*13$

$65*KS = 780$

$\frac{65*KS}{65} = \frac{780}{65}$

$KS = 12$

4 0

3 years ago

Find the volume of a

Serggg [28]

Answer:

v = 189 ft³

Step-by-step explanation:

v = lwh

v = 3 * 7 * 9

v = 189 ft³

8 0

3 years ago

82.8 cm measured to the nearest tenth of a cm what's the answer ;-)

patriot [66]

Answer:

I think it 8.0 cm

7 0

3 years ago

Read 2 more answers