2 years ago

Absolute value 2 | x+1 | -3 = 17

Mathematics

1 answer:

Ilya [14]2 years ago

6 0

The solution is x = 9, -11

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Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her universi

romanna [79]

Answer: The p-value is 0.154.

Step-by-step explanation:

Since we have given that

We claim that

Null hypothesis :

$H_0:\mu=20$

Alternate hypothesis :

$H_1:\mu$

Population mean = 20 hours

Sample mean = 18.5 hours

Sample standard deviation = 4.3 hours

Sample size n = 35

So, test statistic would be

$z=\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{18.5-20}{\dfrac{4.3}{\sqrt{35}}}\\\\z=\dfrac{-1.5}{0.726}\\\\z=-2.066$

So, the p value would be 0.154.

Hence, the p-value is 0.154.

4 0

3 years ago

-5+5/3x=2 solve for x

LenaWriter [7]

Answer: 21/5

Step-by-step explanation:

6 0

3 years ago

How many faces does the polyhedron have? _ faces How many vertices does the polyhedron have? _vertices How many edges does the p

Sindrei [870]

The polyhedron has:

6 Faces, 8 vertices and 12 edges in total.

But

3 Faces, 7 vertices and 7 edges are visible.

5 0

3 years ago

5. After paying a tax of 8 palsa per rupee a man saves Rs. 18,400 per month Then his monthly income is 2 Points) 20,000

Hunter-Best [27]

Answer:

92% of Income is Rs 18400

Step-by-step explanation:

I = 18400/.92 = Rs 20000

8 0

2 years ago

SOLVE FOR X. pls i need help

Lyrx [107]

X=8
Set up proportions would give you: 10/3x+1 = 22/7x-1
With that in mind, cross multiply, which would give you: 10(7x-1) = 22(3x+1).
Turns into: 70x -10 = 66x+22. Then just solve for x

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2 years ago