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julia-pushkina [17]
3 years ago
6

A. f(x) = x2 – 11x – 12

Mathematics
2 answers:
mart [117]3 years ago
5 0

Answer:

Order is B, D, A, C

Step-by-step explanation:

A.f(x) = x^2 - 11x - 12

Product is -12 and sum is -11. factors are -12 and 1

f(x) = (x - 12)(x + 1)

B.f(x) = x^2 - 4x - 12

Product is -12 and sum is -4. factors are -6 and 2

f(x) = (x - 6)(x +2)

C.f(x) = x^2 +x - 12

Product is -12 and sum is +1. factors are +4 and -3

f(x) = (x +4)(x -3)

D.f(x) = x^2 -x - 12

Product is -12 and sum is -1. factors are -4 and +3

f(x) = (x -4)(x +3)

zubka84 [21]3 years ago
3 0
A
(x - 12)(x + 1)
B
(x + 2)(x - 6)
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184500 $ are to be divided between 2 people. One person has 80% of what the other person has. How much does each one receive in
Annette [7]

Given:

$184500 are to be divided between 2 people.

One person has 80% of what the other person has.

To find:

The amount each one receive in $.

Solution:

Let $x be the amount received by first person. Then,

Amount received by the second person = 80% of x

                                                                   = 0.80x

Total amount = Amount received by first person + by second person

                      =x+0.80x

                      =1.80x

Total amount is 184500. So,

1.80x=184500

x=\dfrac{184500}{1.80}

x=102500

So, the amount received by the first person is $102,500.

0.80x=0.80\times 102500

0.80x=82000

So, the amount received by the second person is $82,000.

6 0
3 years ago
I need help this question?
Olegator [25]

Answer: the first option is the correct answer.

Step-by-step explanation:

Let x represent the number of necklaces that he makes in a year.

Profit = Revenue - cost

The cost of making each necklace is $5. In making necklaces in a year, the fixed cost is $5000. This means that the total cost of making x necklaces in a year is

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Sam sells each necklace for $10 each. This means that the total amount made from selling x necklaces is $10x.

For Sam to make profit of $1000 in a year, the number of necklaces that she must sell would be

1000 = 10x - (5x + 5000)

1000 = 10x - 5x - 5000

10x - 5x = 1000 + 5000

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x = 6000/5

x = 1200

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tankabanditka [31]
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Ganezh [65]

Answer: B

Step-by-step explanation:

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How can you analyze the numerator and/or the denominator in a rational expression to locate the x-intercepts?
andre [41]

Answer:

x=0 for f(x)=\frac{P(x)}{Q(x)}, with Q(x) \neq 0.

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To obtain x-intercepts, we need to give certain value, specifically x=0.

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