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bazaltina [42]
3 years ago
12

20. (–28)(+16) = A. –448 B. –44 C. –196 D. –12

Mathematics
2 answers:
mr_godi [17]3 years ago
8 0

The parenthesis denote multiplication. Also, a negative times a positive will always be a negative and visa-versa.

-28(16) = -448

Answer: A. -448

Korolek [52]3 years ago
7 0
A. -448

Explanation:
-28 times 16 is -448.
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If I don't read carefully, I often make mistakes on my work.
velikii [3]

Answer:

compound sentence

Step-by-step explanation:

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3 years ago
What is the square root of: <br> 36<br> 81<br> 121 and <br> 49<br> Please answer like a six grader
harina [27]

The square root of 49 is the number, which multiplied by itself, is 49. In other words, the square of this number equals forty-nine. If you have been looking for square root of forty-nine, then you are right here, too. On this page you can also find what the parts of √49 are called, and in addition to the terminology of √49, we also have a calculator you don’t want to miss. Read on to learn everything about the sqrt 49.

this should help u answer it

6 0
2 years ago
Read 2 more answers
The Kamp family has twins, Rob and Rachel. Both Rob and Rachel graduated from college 2 years ago, and each is now earning $50,0
dybincka [34]

Answer:

z-value of rachel = 1.875

z-value of rob = -2

z-value of Rachel is more than that of rob. Thus rob is earning below average and rachel is earning above average.

Step-by-step explanation:

Let's denote the salary of Rob and Rachel per year by X. So, X = $50,000

We are told that;

For Rachel's industry;

Mean salary;μ1 = $35,000

Standard deviation;σ1 = $8,000

For Rob's industry;

Mean salary;μ2 = $60,000

Standard deviation;σ2 = $5,000

Formula for z - value is;

z = (X - μ)/σ

Thus;

z-value for rob is;

z2 = (X - μ2)/σ2

z2 = (50000 - 60000)/5000

z2 = -2

z-value for rachel is;

z1 = (X - μ1)/σ1

z1 = (50000 - 35000)/8000

z1 = 1.875

z-value of Rachel is more than that of rob. Thus rob is earning below average and rachel is earning above average.

5 0
2 years ago
What is 1086.3961 rounded to the nearest square foot?
Katen [24]
I believe the answer would be 1086.4

Please give a like if I’m right and tell me in the comments if I’m wrong.
Hope this helped :)
3 0
2 years ago
Hi everyone how are you and what is 4 divieded by 12
rusak2 [61]

ookies. OK

How to calculate 12 divided by 4

Long Division

Here we will show you step-by-step with detailed explanation how to calculate 12 divided by 4 using long division.

Before you continue, note that in the problem 12 divided by 4, the numbers are defined as follows:

12 = dividend

4 = divisor

Step 1:

Start by setting it up with the divisor 4 on the left side and the dividend 12 on the right side like this:

4 ⟌ 1 2

Step 2:

The divisor (4) goes into the first digit of the dividend (1), 0 time(s). Therefore, put 0 on top:

0

4 ⟌ 1 2

Step 3:

Multiply the divisor by the result in the previous step (4 x 0 = 0) and write that answer below the dividend.

0

4 ⟌ 1 2

0

Step 4:

Subtract the result in the previous step from the first digit of the dividend (1 - 0 = 1) and write the answer below.

0

4 ⟌ 1 2

- 0

1

Step 5:

Move down the 2nd digit of the dividend (2) like this:

0

4 ⟌ 1 2

- 0

1 2

Step 6:

The divisor (4) goes into the bottom number (12), 3 time(s). Therefore, put 3 on top:

0 3

4 ⟌ 1 2

- 0

1 2

Step 7:

Multiply the divisor by the result in the previous step (4 x 3 = 12) and write that answer at the bottom:

0 3

4 ⟌ 1 2

- 0

1 2

1 2

Step 8:

Subtract the result in the previous step from the number written above it. (12 - 12 = 0) and write the answer at the bottom.

0 3

4 ⟌ 1 2

- 0

1 2

- 1 2

3 0
2 years ago
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