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GaryK [48]
3 years ago
7

After being rearranged and simplified which equation cannot be solved using the quadratic formula?

Mathematics
2 answers:
sleet_krkn [62]3 years ago
8 0

Answer:

B

Step-by-step explanation:

5x^2 -3x+10 = 5x^2

Subtracting 5x^2 from each side

5x^2-5x^2 -3x+10 = 5x^2-5x^2

-3x+10 =0

We cannot use the quadratic formula since a =0

Marina86 [1]3 years ago
7 0

Answer:

B

Step-by-step explanation:

The answer is B because when you simplify it you get -3x + 10 = 0. Since this is no longer a quadratic equation, you can't solve it using the quadratic formula.

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Step-by-step explanation:

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y = x + 2

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cupoosta [38]

Answer:

93 ft

Step-by-step explanation:

the area of a triangle is :

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4 years ago
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.

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

x=4,1,-2,-5

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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.

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3 years ago
If the slope is 3/5, then we should count 3 squares... *
Angelina_Jolie [31]

Answer:

If the slope is 3/5, then we should count 3 squares up and 5 squares to the right.

Step-by-step explanation:

You can find the slope with rise/run.

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