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antoniya [11.8K]
3 years ago
5

Find all numbers whose absolute value is 4

Mathematics
2 answers:
Elan Coil [88]3 years ago
8 0
The answer would be -4 and 4
pav-90 [236]3 years ago
6 0

Answer:

4 and -4

Step-by-step explanation:

|x| = 4

The positive value of the number is 4

|4| =4

and

|-4| =4

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A company produces refrigerators for beer kegs. The refrigerators are supposed to maintain a mean temperature of 43°F, ideal for
Deffense [45]

Answer:

C) Fail to reject the claim that the mean temperature is equal to 43°F when it is actually different from 43°F.

Options:

A) Fail to reject the claim that the mean temperature is equal to 43°F when it is actually 43°F.

B) Reject the claim that the mean temperature is equal to 43°F when it is actually 43°F.

C) Fail to reject the claim that the mean temperature is equal to 43°F when it is actually different from 43°F.

D) Reject the claim that the mean temperature is equal to 43°F when it is actually different from 43°F.

Explanation:

The null hypothesis H0: µ=43°F (a true mean temperature maintained by refrigerator is equal to 43°)

The alternative hypothesis Ha: µ<>43 (a true mean temperature maintained by refrigerator is not equal to 43).

A type II error does not reject null hypothesis H0 when it is false.  Therefore, the type II error for the test fails to reject the claim that the mean temperature is equal to 43°F when it is actually different from 43°F.

3 0
3 years ago
I need help answering this question!! Why does the equation (x-4)^2 – 28 = 8 have two solutions?
andre [41]

Answer:

For your first answer it is because they are two different ways to solve the equation

Step-by-step explanation:

For Example!

<h2>Solution 1:</h2>

(x-4)² – 28 = 8

The 8 is positive making it a different equation (this is like absolute value). (I am assuming you know the answer to the probelm)

<h2>Solution 2:</h2>

(x-4)² – 28 = -8

The 8 could be negative meaning that when you add the 28 to the right side it is -8+28 which will be a negative!

<h3>I hope this helps</h3><h2>IF IT DOES HELP PLEASE GIVE IT A BRAINLIEST!</h2>
5 0
2 years ago
Find the area of the figure and round to the nearest hundredth
sweet [91]

Answer:

285.45

Step-by-step explanation:

If you multiply 17.3x16.5, you get 285.45, and when you round to the nearest hundredth, well, it gives you the same answer.

Therefore, the answer is 285.45.

5 0
3 years ago
students in sixth grade class were asked which team was their favorite. the results are shown in the table. find the ratio of st
Serjik [45]
I don't know because I'm not in six grade
8 0
3 years ago
Find the value of the expression 4a4 − 2b2 + 40 when a = 2 and b = 7.
Makovka662 [10]
4 a⁴ - 2 b² + 40 :

4 * ( 2⁴) - 2  * ( 7²)  + 40 = 

4 * 16 - 2 * 49 + 40 =

64 - 98 + 40 =

-34 + 40 =

+ 6

<span>hope this helps!</span>
4 0
3 years ago
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