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Yuri [45]
3 years ago
14

type the correct answer in the box. The formula for the volume, V, of a cone having the radius, r, and the height, h, is shown b

elow. Write the formula to calculate the height, h.
Mathematics
2 answers:
BigorU [14]3 years ago
8 0

Answer:

You have to make h the subject using volume of cone formula :

v =  \frac{1}{3}  \times \pi \times   {r}^{2}  \times h

3v = \pi {r}^{2}  \times h

\frac{3v}{\pi {r}^{2} }  = h

h =  \frac{3v}{\pi {r}^{2} }

Phantasy [73]3 years ago
4 0

Answer:

h=3v/a^2

Step-by-step explanation:

You might be interested in
Mathematics pls help me.
uysha [10]

Answer:

I think the answer may be 465

Step-by-step explanation:

105+115=220

150+95=245

245+220=465

8 0
3 years ago
Please help!!
fgiga [73]

The price of the small pots is $2.40 so you would have 2.4s ( multiply the number of small pots by the price)

She bought a total of 14 pots, so the number of large pots would be 14 - s ( subtract the number of small pots from the total )


Now you have:

L = 14-s

2.4s + 5.6(14-s) = 49.6


The answer is C.

7 0
3 years ago
What is the probability a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean
Elena-2011 [213]

Answer:

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

Step-by-step explanation:

The following information is missing:

The standard deviation of population is 100.

We are given the following information in the question:

Population mean, μ = 502

Standard Deviation, σ = 100

Sample size, n  = 90

Standard error =

\dfrac{\sigma}{\sqrt{n}} = \dfrac{100}{\sqrt{90}} =  10.54

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(test score within 10 points)

P(492 \leq x \leq 512) \\\\= P(\displaystyle\frac{492 - 502}{10.54} \leq z \leq \displaystyle\frac{512-502}{10.54}) \\\\= P(-0.9487 \leq z \leq 0.9487)\\= P(z \leq 0.9487) - P(z < -0.9487)\\= 0.829 -0.171 = 0.658 = 65.8\%

P(492 \leq x \leq 512) = 65.8\%

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

7 0
3 years ago
Is 1.6 or 1.25 bigger
Verizon [17]
1.6 is bigger because
8 0
3 years ago
Read 2 more answers
7g = -84 ; g = - 12 due in 10 min WHAT IS UP WITH THESE TIMED MATH TESTS T^T
dolphi86 [110]

Step-by-step explanation:

7 (-12) = -84

it's literally -84

7 0
3 years ago
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