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Ivan
3 years ago
7

Enter your answer and show all the steps that you use to solve this problem in the space provided

Mathematics
1 answer:
VashaNatasha [74]3 years ago
5 0

Answer: x = -4, x = 5

Step-by-step explanation:

You can use the substitution method for this problem.

y = x^{2} + 2x, but y also = 3x +20.

Because of this, you can determine that x^{2} +2x = 3x + 20 because they are both equal to the same thing, y.

Solve the quadratic equation you got from substitution:

x^{2} + 2x = 3x + 20

x^{2} -x = 20

x^{2} -x -20 = 0

You can factor this equation:

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

x = -4, x = 5

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The graph of F(x), shown below, resembles the graph of G(x) = x^2?, but it has
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D

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Slope is negative, derivative of x shows that -3 is the maximum in C/D but C is not negative

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I’m pretty sure the answer is 50.3 but could someone please tell me if it’s square yards or yards?
olchik [2.2K]

Answer:

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Step-by-step explanation:

3 0
4 years ago
What's method 2 and what is the unit rate per guest?
Bad White [126]
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7 0
3 years ago
Jim weighs 30 pounds less than Tom, and together they weigh 210 pounds. Let n = Tom's weight in pounds. How much does Tom weigh?
never [62]
First, let's write an equation for the situation.

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If Tom's and Jim's weights add to 210:

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n = 120

Tom weighs 120 pounds.
5 0
3 years ago
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