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3 years ago

Substitute 9 for x and evaluate the expression below. (x-1) -3 A, 5 B, 7 C 11 D, 13

Mathematics

1 answer:

Sphinxa [80]3 years ago

6 0

Answer: The answer would be A. 5

Please mark me as brainliest

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Forty-five more than a number

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Answer:

n+45

Step-by-step explanation:

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3 years ago

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Plz help me: what is the solution for : |x| -6 = 4

Lisa [10]

Answer:

x can be 10 or -10

Step-by-step explanation:

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4 years ago

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Estimate: 23.41 ÷ 3.1

Setler [38]

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3 years ago

Find the measure of

Furkat [3]

Answer:

B. 30

Step-by-step explanation:

3x + 2x + x = 180 (angle sum of a triangle is 180)

6x = 180

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2 years ago

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The Tennessee Tourism Institute (TTI) plans to sample information center visitors entering the state to learn the fraction of vi

baherus [9]

Answer: 2185

Step-by-step explanation:

Let p be the proportion of visitors are campers.

Given : The Tennessee Tourism Institute (TTI) plans to sample information center visitors entering the state to learn the fraction of visitors who plan to camp in the state.

The prior proportion of visitors are campers : p=0.35

Allowable error : E= 2%= 0.02

We know that the z-value for 95% confidence = $z_c=1.96$

Then by Central Limit Theorem , the required sample size would be :

$n=p(1-p)(\dfrac{z_{c}}{E})^2$

$\Rightarrow\ n=0.35(1-0.35)(\dfrac{1.96}{0.02})^2\\\\ n= 0.35(0.65)(9604)$

Simply , we get

$n=2184.91\approx2185$ [Rounded to the next whole number.]

Hence, the smallest sample size to estimate the population proportion of campers =2185

7 0

3 years ago