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1 year ago

Im Not Sure of this. Can I get some help?

Mathematics

2 answers:

Marta_Voda [28]1 year ago

6 0

Answer:

Option A.

V = π × r(9)² × 15 ≈ 3,817.04

Which rounds closest to

3,815.10 inches

alisha [4.7K]1 year ago

5 0

Answer: The amount of grain it can hold can also be called it's volume. 423.9

The formula for volume is PI × Raduis² × Height

And for the radius we divide the diameter by 2.

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Dan invests £3400 into his bank account.

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Answer: £4597.82

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3 years ago

Least common multiple of 8 and 12

umka21 [38]

I believe the answer is 4
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3 years ago

Read 2 more answers

It says factor each expression 49x-28?

NARA [144]

Answer:

7(7x -4)

Step-by-step explanation:

49x-28

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3 years ago

Consider a population consisting of the number of teachers per college at small 2-year colleges. Suppose that the number of teac

agasfer [191]

Answer:

a) $\frac{8}{9}$ =0.89

b) 0.8413

Step-by-step explanation:

we know that

$P(║ x -\mu║ \leq k\sigma) \geq 1 -\frac{1}{k^2}$

$so, \mu = 150, \sigma = 20$

$k = \frac{210 - 150}{20} =\frac{150 - 90}{20} = 3$

$P(║ x -150 ║ \leq 3\times 20) \geq 1 -\frac{1}{3^2} = \frac{8}{9}$

x - N(150, 20^2)

$P(X \leq 170) = 0.8413447$

check

$P norm = \frac{170 - 150}{20}= 0.8413447$

8 0

3 years ago

The graph provided show the volume (in cubic inches) of air in a balloon as it chang

drek231 [11]

The volume of the balloon is 500 cubic inches after 20 seconds

<h3>How to determine the volume?</h3>

From the given graph, we have:

Time on the x-axis
Volume on the y-axis

Also from the graph, we have:

V(20) = 500

This means that:

The volume of the balloon is 500 cubic inches after 20 seconds