All categories

4 years ago

Hi boys!!!! Can u answer my question pls!!!!

Mathematics

1 answer:

erma4kov [3.2K]4 years ago

4 0

Answer:

The quality control facility operates for 10 hours each day.

Step-by-step explanation:

The given function models the number of cars that are put through a quality control test each hour at a car production factory.

The given function is

We need to find the number of hours does the quality control facility operate each day.

Rewrite the given function it factored form.

Taking out the common factors from each parenthesis.

The factored form of given function is c(t)=-(t-10)(t+2).

Equate the function equal to 0 to find the x-intercept.

Number of hours cannot be negative. So from t=0 to t=10 quality control facility operate the cars.

You might be interested in

What is the value of tanA 8/10 6/10 8/6 6/8

nikitadnepr [17]

TanA = BC/AC
tanA = 6/8

answer
6/8

3 0

4 years ago

Consumers Energy states that the average electric bill across the state is $67.16. You want to test the claim that the average b

aleksandr82 [10.1K]

Answer:

B: No error has occured

Step-by-step explanation:

In statistical hypothesis testing, we have two types of errors namely Type I error and Type II error.

Type I error occurs when we reject the null hypothesis although it is true. Meanwhile, Type II error occurs when we fail to reject the null hypothesis null hypothesis even though it is false.

Now, we are given the null and alternative hypothesis as;

Null Hypothesis: μ ≤ 67.16

Alternative Hypothesis: μ > 67.16.

Where μ represents the statewide average bill.

We are also given the true statewide average bill is $51.28.

Now, the true statewide average bill falls within the range of the null hypothesis given.

Thus, we can't reject the null hypothesis since it is true.

Now, we are told the null hypothesis is not rejected and that is correct.

Thus, there is no error as it doesn't fall into the type I or the type II error.

5 0

3 years ago

Find the discounted price of the teddy bear which has a regular price of $450.

GuDViN [60]

You will pay $360 for a item with original price of $450 when discounted 20%. 450x0.2=90.00 then 450-90=360

6 0

3 years ago

Which choice is equivalent to the expression below?

Jet001 [13]

B because when you calculate it it should be it

4 0

3 years ago

Read 2 more answers

Find the total area for the pyramid with the equilateral base. T. A. =

iogann1982 [59]

Answer:

36√3 + 144

Step-by-step explanation:

Given that,

base of the pyramid is an equilateral triangle with sides = 12

Formula to calculate total surface area of pyramid

<h3>[Base Area] + 1/2 × Perimeter × [Slant Length]</h3>

Base Area

1/2 (height) (base)

1/2 (√12²-6²)(12)

6(6√3)

36√3

perimeter of base

sum of all sides = 12 + 12+ 12

= 36

slant height = √10²-6²

= 8

put all these values in the formula above

36√3 + 1/2(36)(8)

36√3 + 144

Total area for the pyramid with the equilateral base =

36√3 + 144

4 0

3 years ago

Read 2 more answers