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3 years ago

I WILL GIVE BRAINLEST AND POINTS 20??

Mathematics

1 answer:

earnstyle [38]3 years ago

6 0

Answer:

The formula for the volume of a cube is-

side length^3.

For your problem side length=4, so the answer is 4^3=64

Answer: 64 cu. cm

Step-by-step explanation:

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Graph the functions f(x)=−6x+14 and g(x)=−2x+6 on the same coordinate plane. What are the solutions of the equation −6x+14=−2x+6

asambeis [7]

Answer:

2 AND 4

Step-by-step explanation:

Brainliest please

8 0

3 years ago

Jonah wants to construct a confidence interval using 90% confidence to estimate what proportion of silicon wafers at his factory

Nimfa-mama [501]

Answer:

170

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is of:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

Assume:

$\pi = 0.06$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

What is the smallest sample size required to obtain the desired margin of error?

This is n for which M = 0.03. So

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.03 = 1.645\sqrt{\frac{0.06*0.94}{n}}$

$0.03\sqrt{n} = 1.645\sqrt{0.06*0.94}$

$\sqrt{n} = \frac{1.645\sqrt{0.06*0.94}}{0.03}$

$(\sqrt{n})^2 = (\frac{1.645\sqrt{0.06*0.94}}{0.03})^2$

$n = 169.6$

Rounding up, 170.

4 0

3 years ago

1,000,000,000 meters equal 3 gigameters. True False

alekssr [168]

<span>it is 3000000000 because 1 gigameter is 1000000000 so 3 is 3000000000</span>

5 0

3 years ago

Which answer best describes how to solve this story problem? Mark bought 5 bags of red apples with 6 apples in each bag. He boug

Tomtit [17]

The answer is A.

5 × 6 = 30
4 × 5 = 20
30 - 20 = 10

so there are ten more red apples so A is the answer

5 0

4 years ago

Jonah has been saving for a video game. Last year it cost $28. This year it costs $36. Determine the percent of change.

nata0808 [166]

Answer:

Where: 28 is the old value in 36 is the new value in this case we have a positive change increase of 28.571142857

6 0

3 years ago