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luda_lava [24]
4 years ago
7

PLZ HELP, 20 pts and brainliest awarded, plz ASAP!!!!!! see image below

Mathematics
1 answer:
Amiraneli [1.4K]4 years ago
8 0

Answer:

Option B

Step-by-step explanation:

we have

f(x)=x^{3}-x^{2}-9x+9

we know that

<u>The vertical line test </u>is a visual way to determine if a curve is a function or not. A function can only have one value of y for each unique value of x

In this problem

The given function  passes the vertical line test

therefore

f(x) is a function

<u>The Horizontal Line Test</u>  is a test use to determine if a function is one-to-one

If a horizontal line intersects a function's graph more than once, then the function is not one-to-one.

In this problem

The given function fails the horizontal line test

because for f(x)=0 x=-3, x=-1, x=3

therefore

It is no a one-to-one function

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Estimate by rounding to the nearest hundred 657 - 125.
DIA [1.3K]

Answer:

700-100=600

Step-by-step explanation:

600

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At the U-Pack Shipping, the workers can unload 24 trucks in 8 hours. Which of the following is a correct unit rate for this situ
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1 over 3. of an hour per truck.

Step-by-step explanation:

1/3 x 1 hour = 20 min.

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Answer:

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Step-by-step explanation:

6 0
3 years ago
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Katelyn had 2 dogs and 3 cats. Which of the following shows the ratio written correctly for the number of dogs to cats?
Rudik [331]

Answer:

2:3

Step-by-step explanation:

Ratio is indicated by :

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Hope this helps plz mark brainliest if correct :D

8 0
3 years ago
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You have used the significant level of 0.01 to estimate the average hours of television viewing for the NJ students. What is the
Lorico [155]

Answer:

1%

Step-by-step explanation:

Given : You have used the significant level of 0.01 to estimate the average hours of television viewing for the NJ students.

To Find :What is the chance that our interval estimate does not contain the true population mean?

Solution:

We are given that You have used the significant level of 0.01 to estimate the average hours of television viewing for the NJ students.

So, α=0.01

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