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KengaRu [80]
3 years ago
7

Factor completely -4x^2-28x-48

Mathematics
1 answer:
kompoz [17]3 years ago
3 0

first factor out -4

-4(x^2 + 7x + 12)

then you can factor what is in parenthesis

-4(x+4)(x+3)

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Which expression is not equal to1/4 of 52
Art [367]
1/4 as a decimal is 0.25 (divide one by four). You can also multiply 1/4 by 52, but converting it into a decimal is typically easier.

"Of" typically means multiply, so multiply 52 * 0.25 to get the product 13.

For Option A., solve for 0.25 * 52, the final result should be 13.

For Option B., convert 4% into a decimal by dividing 4 over 100, you will get 0<span>.04, multiply 0.04 * 52 to get 2.08.
</span>
For Option C., divide 52 by 4, the quotient should be 13. 

For Option D., 52 over 4 is another way to write 52 divided by 4, therefore, the answer, once again, is 13. 

When comparing all the answers, you will notice all the answers are equal, except option B.

2.08 is not equal to 13

Therefore, your answer is <u>B. 4% of 52</u>

4 0
3 years ago
If the perimeter is 74mm and the width 16mm what is the length
weqwewe [10]
P=2w+2l
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4 0
3 years ago
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Differentiate y=x/5-5/x
igomit [66]
I’m trying to find this too
7 0
2 years ago
A perfect square is the square of an integer. Of the integers from 2 through 99, how many have at least one perfect square facto
N76 [4]

Answer:

Six numbers have perfect square factors

Step-by-step explanation:

The numbers with perfect square factors are those numbers that have perfect squares as one of the numbers that can divide them.

They include:

4 = 2 * 2

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36 = 6 * 6

49 = 7 * 7

64 = 8 * 8

81     = 9* 9

These numbers above have perfect square factors because they are formed from integers that multiply themselves.

8 0
2 years ago
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Answer:

Neither. 72 students failed.

Step-by-step explanation:

40% of 180 is 72

8 0
3 years ago
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