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blagie [28]
3 years ago
12

PLEASE ANSWER QUICKLY I WILL FOLLOW YOUanswer 3 and 4​

Mathematics
2 answers:
ruslelena [56]3 years ago
7 0
Number three is B
Number four is A
valentinak56 [21]3 years ago
6 0

Answer:

3. is B

4. is A

Step-by-step explanation:

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Step-by-step explanation:

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25+12 1/2 + 61/4+31/8+19/16+25/32=
Len [333]
Make them all have the same denominator
32

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Add all of the numerators... to get 691/32+1184/32
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Regina earns $9 per hour Jake earns $7.80 per hour they both worked for 8 hours how much money did Regina earn?
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As a financial consultant, the CFO of a major television company has shared the profit function P(x) = −x4 - 2x3 + 21x2 + 22x −
drek231 [11]

Answer:

The company will break even at x=1 and x=4.

Step-by-step explanation:

The given profit function is

P(x)=-x^4-2x^3+21x^2+22x-40

Where, x is number of commercials.

Use synthetic division or long division to find the factors of the function.

P(x)=(x-1)(x^3+3x^2-18x-40)

P(x)=(x-1)(x+2)(x^2+x-20)

P(x) = -(x - 4) (x - 1) (x + 2) (x + 5)

Equate P(x)=0, to find the break even points.

-(x - 4) (x - 1) (x + 2) (x + 5)=0

Use zero product property and equate each factor equal to zero.

x=4,1,-2,-5

Therefore the zeros of the function P(x) are 4, 1, -2 and -5. Since x is number of commercials, therefore the value of x must be positive. Therefore the company will break even at x=1 and x=4.

The higher degree of the function is even and the leading coefficient is negative. So,

P(x)\rightarrow -\infty \text{ as }x\rightarrow \infty

P(x)\rightarrow -\infty \text{ as }x\rightarrow -\infty

Since the value of x must be positive, therefore the left end point is y-intercept of the graph, i.e., (0,-40).

Therefore the company faces huge loss when the number of commercials increases unboundly.

The graph of the function is given below.

7 0
2 years ago
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