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MrRissso [65]
3 years ago
9

1. April has two cone-shaped containers. The first container has a diameter of 6 in. and a height of 4 in. The second container

has a radius of 4 in. and a height of 3 in. Which statement is true about the containers?
A. The first container will hold about 100 cubic inches more than the second container.
B. The second container will hold about 13 cubic inches more than the first container.
C. The first container will hold about twice as much as the second container.
D. Both containers will hold the same amount.

2. A cake decorator rolls a piece of stiff paper to form a cone. She cuts off the tip of the cone and uses it as a funnel to pour decorator sprinkles into small containers. The cone has a radius of 6 cm. and a height of 18 cm.
What is the volume of the cone before the end is cut off?
Mathematics
1 answer:
m_a_m_a [10]3 years ago
5 0

Answer:

I would say for 1. would be A

And i think... that 2. is 3 i'm not sure that's all i really know

Step-by-step explanation:

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A researcher is planning to compare the effects of two different types of lights on the growth of bean plants. She expects that
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Answer:

The sample size is  n  = 36

Step-by-step explanation:

From the question we are told that

   The sample standard deviation is  s =  1.5

  The mean difference of the two groups is  \=x _ 1 - \=x_2 =  1

   The standard error is  SE =  \frac{ \= x_1 - \= x_2}{4}

=>                                      SE =  \frac{1}{4}

Let assume that the confidence level is 95% hence the level of significance is  

   \alpha = (100-95)\%

=> \alpha = 0.05

So the critical value of  \frac{\alpha }{2} obtained from the normal distribution table is

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Generally the margin of error is mathematically evaluated as

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Generally the sample size is mathematically represented as

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=> n  = [\frac{1.96 * 1.5}{0.49} ]^2

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6 0
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