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2 years ago

A b c or d. use pic to solve

Mathematics

1 answer:

Neporo4naja [7]2 years ago

5 0

Answer:

In Heather's solution to the problem, she wrote and solved an equation.

Her work is:

Step 1: 1.08(x +9.01 +0.98 +5.01) = 21.87

Solving like terms

1.08(x+15}=21.87

dividing both side by 1.08

we get

x+15=21.87/1.08

x+15=20.25

subtracting both side by 13.9198

x=20.25-15

x=5.25

According to correction

;

<u>Option 1st</u>

<u>yes,it is correct</u>

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3 years ago

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3 years ago

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Step-by-step explanation:

We have a system with the following equations:

$y = x ^ 2-1\\\\y = 2x-2$

The first equation is a parabola.

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To solve the system, substitute the second equation in the first and solve for x.

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These numbers are -1 and -1

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Finally the solutions are

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3 years ago

Read 2 more answers