1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
arsen [322]
2 years ago
13

Need help i will give brainlist​

Mathematics
1 answer:
Nadya [2.5K]2 years ago
7 0

Answer:

The option u chose is the correct one

You might be interested in
Which graph represents exponential decay?
kvasek [131]

Answer:

I THINk i did this but i will try to reamber

Step-by-step explanation:

3 0
3 years ago
-8x-27=-7\left(1+2x\right)+2x
Darina [25.2K]

Answer:

x=5

Step-by-step explanation:

-8x-27=-7\left(1+2x\right)+2x

Expand:

-8x-27=-7\times 1-7\times 2x+2x

-8x-27=-7-12x

Add 27 to both sides:

-8x-27+27=-7-12x+27

-8x=-12x+20

Add 12x to both sides:

-8x+12x=-12x+20+12x

4x=20

Divide both sides by 4:

\frac{4x}{4}=\frac{20}{4}

x=5

5 0
3 years ago
I HAVE 2 MIN PLS HELP
Maksim231197 [3]

Answer:

C (ignore this it asked for 20 characters)

5 0
3 years ago
Please help meee please o' please
bulgar [2K]

Answer:

5

Step-by-step explanation:

use PEMDAS to solve

9-5=4

4^2=16

16/8=2

3+2=5

4 0
3 years ago
A sample of 1500 computer chips revealed that 32% of the chips do not fail in the first 1000 hours of their use. The company's p
Grace [21]

Answer:

Yes, we have sufficient evidence at the 0.02 level to support the company's claim.

Step-by-step explanation:

We are given that a sample of 1500 computer chips revealed that 32% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature claimed that above 29% do not fail in the first 1000 hours of their use.

Let Null Hypothesis, H_0 : p \leq 0.29  {means that less than or equal to 29% do not fail in the first 1000 hours of their use}

Alternate Hypothesis, H_1 : p > 0.29  {means that more than 29% do not fail in the first 1000 hours of their use}

The test statics that will be used here is One-sample proportions test;

          T.S. = \frac{\hat p -p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = proportion of chips that do not fail in the first 1000 hours of their use = 32%

            n = sample of chips = 1500

So, <u>test statistics</u> = \frac{0.32-0.29}{\sqrt{\frac{0.32(1-0.32)}{1500} } }

                              = 2.491

<em>Now, at 0.02 level of significance the z table gives critical value of 2.054. Since our test statistics is more than the critical value of z so we have sufficient evidence to reject null hypothesis as it fall in the rejection region.</em>

Therefore, we conclude that more than 29% do not fail in the first 1000 hours of their use which means we have sufficient evidence at the 0.02 level to support the company's claim.

7 0
3 years ago
Other questions:
  • What is the distance between -20 and -6 on a number line
    7·2 answers
  • Is the pattern 2, 3, 5, 8, 12 geometric explain why
    12·1 answer
  • The length of a rectangle is 11 in. longer than its width. The perimeter of the rectangle is 86 in.
    13·1 answer
  • What is 23.62 as a fraction
    10·1 answer
  • The temperature is 15°F and is expected to fall 2°F each hour during the night.expression​
    11·1 answer
  • Slope = -3; y-intercept = 2
    12·1 answer
  • A 13 foot ladder is leaning against the wall of a house. The ladder is 5 feet away from th
    9·1 answer
  • Solve for q <br> q/-2+17=13 <br><br> q=
    14·1 answer
  • Find the value of x. The figure shows complementary angles. The label for the first angle is x plus 9 degrees. The label for the
    13·1 answer
  • Solve for t -18 = 6t
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!