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2 years ago

Mike wants to find the volume of 4 basketballs. If each basketball has a radius of 4.5

Mathematics

1 answer:

Oksana_A [137]2 years ago

8 0

The answer is 25 i think

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25 ÷ (x + 2) = 5 is an equation or expression

mario62 [17]

The answer is an expression because you can not solve for x.

7 0

3 years ago

Billy has 95 stickers. He shares 4 with<br> Harry. How many stickers will Billy have?

Leni [432]

Answer: 91

Step-by-step explanation:

95 - 4 (That he gave to Harry) = 91

Hope this helped!

7 0

3 years ago

Read 2 more answers

60 is 40 percent of what number

nydimaria [60]

240 plz like my awnser it would mean alot

6 0

2 years ago

A system of two linear equations and three unknowns can be solved by:

irakobra [83]

These cannot be solved.- 3 unknowns require 3 equations

3 0

2 years ago

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 436.0 gram setting. It

Vilka [71]

Answer:

We conclude that the machine is under filling the bags.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 436.0 gram

Sample mean, $\bar{x}$ = 429.0 grams

Sample size, n = 40

Alpha, α = 0.05

Population standard deviation, σ = 23.0 grams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 436.0\text{ grams}\\H_A: \mu < 436.0\text{ grams}$

We use one-tailed(left) z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{429 - 436}{\frac{23}{\sqrt{40}} } = -1.92$

Now, $z_{critical} \text{ at 0.05 level of significance } = -1.64$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that the machine is under filling the bags.

8 0

3 years ago