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3 years ago

Can anybody help me answer this ASAP thank you

Mathematics

1 answer:

Rudik [331]3 years ago

7 0

Answer:

Download Unacademy

They will help u much been way..

Thank u

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There is no prior information about the proportion of Americans who support the gun control in 2018. If we want to estimate 99%

Romashka-Z-Leto [24]

Answer: 13

Step-by-step explanation:

If the prior population proportion is unavailable then the formula to find the sample size is given by :-

$n=0.25(\dfrac{z^*}{E})^2$

, where z* = Critical z-value

E = margin of error

Let p be the proportion of Americans who support the gun control in 2018.

As per given , we have

Confidence level = 99%

The critical z-value for 99% confidence interval is 2.576 ( BY z-table)

Margin of error : E= 0.36

Since there no prior information about the proportion of Americans who support the gun control in 2018.

So , the required sample size to estimate 99% confidence interval would be:

$n=0.25(\dfrac{2.576}{0.36})^2=0.25(7.16)^2$

$n=0.25(51.2656)=12.8164\approx13$

Hence, 13 Americans should be surveyed.

3 0

3 years ago

Micheal models an experiment. He places a model car on a tramp that can be adjusted to different heights. Each time the model ca

Nadusha1986 [10]

Answer:A

Step-by-step explanation:

because i just know iot is

8 0

2 years ago

2. Are the expressions -5 + -2 and -5 – 2 equivalent? Why or why not? Explain and show your work.

scoray [572]

Answer:

Yes, the expressions are equivalent.

Step-by-step explanation:

Notice that -2 is defined as in additive inverse of 2, that is, 2 + -2 = 0.

and substracting 2 from 2 is also equal to zero, that is, 2 - 2 = 0.

Thus 2-2 = 2+ -2, implying -2 = + -2. Consequently, -5 + -2 = -5 -2

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4 years ago

The function g(x)=|5x|-4 is a horizontal (blank) of the function f(x)=|x|-4

hodyreva [135]

Answer:

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Step-by-step explanation:

3 0

3 years ago

The income of a person is Rs 18,000 per month .due to the exemption of the income of Rs 1,40,000 per year, he has paid Rs 11,400

svp [43]

If the income of a person is Rs 18,000 per month , the exemption of the income is Rs 1,40,000 per year, If he has paid Rs 11,400 as an income tax at the end of the year . The percent per annum of the tax paid is: 15%.

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</h3><h3>Tax percentage</h3>

Given:

Income of a person=Rs 18,000 per month

Exemption income per year=140,000

Income tax paid=11,400

First step is to the calculate the Income per year since the income of a person is Rs 18,000 per month

Income per year= 18,000 ×12

Income per year=216,000

Second step is to calculate the taxable income

Taxable income=216,000-140,000

Taxable income=76,000

Third step is to calculate the tax Percentage per annum

Tax percentage=11,400/76,000×100

Tax percentage=15%

Therefore If he has paid Rs 11,400 as an income tax at the end of the year . The percent per annum of the tax paid is: 15%.

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Learn more about tax percentage here:brainly.com/question/24274714

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7 0

2 years ago