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Oduvanchick [21]
3 years ago
6

Write the quadratic equation in standard form: 7x + 8 + 2x2 2x + 1 + x2

Mathematics
1 answer:
JulsSmile [24]3 years ago
5 0

Answer:

3x^2 + 9x  +9

Step-by-step explanation:

Given

(7x + 8 + 2x^2) + (2x + 1 + x^2)

Required

The result in standard form

We have:

(7x + 8 + 2x^2) + (2x + 1 + x^2)

Remove brackets

7x + 8 + 2x^2 + 2x + 1 + x^2

Collect like terms

7x+ 2x  + 8 + 1 + 2x^2+ x^2

9x  + 9+ 3x^2

The standard form of a quadratic equation is:

ax^2 + bx + c

So, we have:

9x  + 9+ 3x^2

3x^2 + 9x  +9

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81 is 27 percent of 300.

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6 0
3 years ago
A business owner opens one store in town A. The equation p(x) = 10,000(1.075)' represents the anticipated profit aft-
sammy [17]

Answer:

96%

Step-by-step explanation:

he rigth equation to anticipate the profit after t years is p(t) = 10,000 (1.075)^t

So, given that both

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=> pA(t) / pB(t') = 1.075^t / 1.075^t'

=> pA(t) / pB(t') = 1.075 ^ (t - t')

And t - t' = 0.5 years

=> pA(t) / pB(t') = 1.075 ^ (0.5) = 1.0368

or pB(t') / pA(t) = 1.075^(-0.5) = 0.964

=> pB(t') ≈ 0.96 * pA(t)

This means that the profit of store B is about 96%of  the profit of store A at any time after both stores have opened.

4 0
2 years ago
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Answer:

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8 0
1 year ago
1/8 the sum of 23 and 17
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Set up the equation...

1/8(23 + 17)=
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4 0
3 years ago
Read 2 more answers
If the AREA of the rectangle at the right is 22 3/4 square inches, what is the width of the rectangle?
sergejj [24]

Answer:

3.25 or 3 1/4 inches

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A = lw

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6 0
3 years ago
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