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IrinaK [193]
2 years ago
14

Which solid shapes have both flat and curved surfaces?

Mathematics
1 answer:
RSB [31]2 years ago
6 0
I think it may be a cylinder
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How to solve problems on this website
-BARSIC- [3]

Answer:

You go to whoever's question you wanna answer and it should say "add answer" and just type out your answer and solve it

4 0
2 years ago
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One factor of 32 is
Elodia [21]
Ik you asked for one but here's a couple: 1,2,4,8,16,32
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3 years ago
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The lengths of pregnancies in a small rural village are normally distributed with a mean of 265 days and a standard deviation of
MakcuM [25]

Answer:

the middle 50% of most lengths of pregnancies ranges between 255.62 days and 274.38 days

Step-by-step explanation:

Given that :

Mean  = 265

standard deviation = 14

The formula for calculating the z score is z = \dfrac{x -\mu}{\sigma}

x = μ + σz

At middle of 50% i.e 0.50

The critical value for z_{\alpha/2} = z_{0.50/2}

From standard normal table

z_{0.25}= + 0.67  or -0.67  

So; when z = -0.67

x = μ + σz

x = 265 + 14(-0.67)

x = 265 -9.38

x = 255.62

when z = +0.67

x = μ + σz

x = 265 + 14 (0.67)

x = 265 + 9.38

x = 274.38

the middle 50% of most lengths of pregnancies ranges between 255.62 days and 274.38 days

3 0
2 years ago
The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statis
Ainat [17]

Answer:

The test statistic Z = 3.125

Step-by-step explanation:

<em>Given Population proportion P = 0.25</em>

<em>Given sample size 'n' = 696</em>

<em>Sample proportion 'p⁻' = 0.30</em>

Test statistic

                 Z = \frac{p^{-}  -P}{\sqrt{\frac{P Q}{n} } }

                 Z = \frac{0.30-0.25}{\sqrt{\frac{0.25 X 0.75}{696} } }  = 3.125

<u><em>Final answer</em></u>:-

The test statistic Z = 3.125

3 0
3 years ago
Let f(x)=x^3 and g(x)= √x, and h(x)=x/3. Find each of the following: f(g(h(6)))
rewona [7]

Answer:

go from inside out.

h(x)=x/3

(\sqrt{2})^{3}=> h(6) = 6/3 = 2

g(x) = \sqrt{x}

=> g(h(6)) = g(2) = \sqrt{2}

f(x) = x^{3}

=> f(g(h(6))) = f(\sqrt{2} ) = (\sqrt{2} )^{3}

6 0
3 years ago
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