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BabaBlast [244]
2 years ago
7

ANSWER PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Mathematics
2 answers:
Anna71 [15]2 years ago
8 0

Answer:

A.

Step-by-step explanation:

If it's inside the absolute value box, the lowest part of the "v" will move on the x-axis. "+" goes to the left and "-" goes to the right. If the "+4" is outside the absolute value box, the "v" shape will move up on the y-axis

wlad13 [49]2 years ago
4 0

Answer: B.

Step-by-step explanation:

You might be interested in
3. What kind of triangle is represented by the triangle shown below?
krek1111 [17]

Answer:

Isosceles

Step-by-step explanation:

An Isosceles triangle has an acute angle (less than 45°), and this photo shows a triangle with two matching sides with one side being longer.

A right triangle would have a 90° angle which this photo doesn't have

An Equilateral triangle has all 60° sides, since it doesn't have all matching sides, it cannot be the answer.

A Scalene triangle is similar to this photo except it has 30° 60° and 90° angles, which this photo doesn't have.

I hope this helps!

5 0
1 year ago
TIMED TEST PLEASE HELP ME!!!!
s2008m [1.1K]

Answer:

16 cm^2

Step-by-step explanation:

Hope this helps

6 0
3 years ago
If a=3 and b=7 find the value of<br>2ab​
Marianna [84]

Answer:

2ab-87=12 to the 100th times 2ab equals 79 the answer

Step-by-step explanation:

4 0
3 years ago
The Environmental Protection Agency (EPA) publishes fuel economy values that are known to be good estimates of the fuel economy
r-ruslan [8.4K]

Answer:

The 90% confidence interval for the mean combined fuel economy for Ford Explorers is between 22.95 and 23.63 mpg.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 16 - 1 = 15

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 15 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.7531

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.7531\frac{0.78}{\sqrt{16}} = 0.34

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 23.29 - 0.34 = 22.95 mpg

The upper end of the interval is the sample mean added to M. So it is 23.29 + 0.34 = 23.63 mpg

The 90% confidence interval for the mean combined fuel economy for Ford Explorers is between 22.95 and 23.63 mpg.

7 0
3 years ago
987÷z=164.5
AveGali [126]

Answer:

z=6

Step-by-step explanation:

987/z=164.5

multiply both sides by z

4 0
3 years ago
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