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3 years ago

11

A school survey asked students which candidate they supported for class president. The survey data are shown in the relative fre

quency table. What percentage of females polled supported Wilson?

2 answers:

Margaret [11]3 years ago

8 0

Answer:

C. 24%

Step-by-step explanation:

Juli2301 [7.4K]3 years ago

8 0

Answer: the answer is about 44%

Step-by-step explanation:

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What does 876+736 equal

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What are the real zeros of x^3+4x^2-9x-36

Katyanochek1 [597]

Answer:

$x = -4\\x = -3\\x = 3$

Step-by-step explanation:

To find the real zeros you must match the function to zero and factor the expression.

We have a polynomial of degree 3.

We try to group the terms to perform the factorization

$x ^ 3 + 4x ^ 2-9x-36 = 0\\\\x ^ 2(x + 4) - 9(x + 4) = 0$

Now we take (x + 4) as a common factor

$(x + 4)(x ^ 2 -9) = 0$

If we have an expression of the form $(a ^ 2-b ^ 2)$ we know that this expression is equivalent to:

$(a ^ 2-b ^ 2) = (a + b)(a-b)$

In this case

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So:

$(x ^ 2 -9) = (x + 3)(x-3)$

Finally:

$x ^ 3 + 4x ^ 2-9x-36 = (x + 4)(x + 3)(x-3) = 0$

The solutions are:

$x = -4\\x = -3\\x = 3$

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2 years ago

Write a real-word problem where you have to multiply 120 and 75.

natita [175]

Bob works at a factory.
He makes $120 a day and Bob needs to make a certain amount of money to pay his bills at the end of three months. Bob has to pay $8675 for his bills. If Bob worked 75 days, does he have enough to pay his bills?

(answer)
Yes.

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120 x 75 = 9000

9000-8675

I hope this helped!

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