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2 years ago

Please answer the following essay question:

Mathematics

1 answer:

Anestetic [448]2 years ago

3 0

Write about how economic incentives will get people to come to your settlement

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Which are solutions of x2 + 5x = 2? Check all that apply.

ANEK [815]

we have

$x^{2} +5x=2$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} +5x+2.5^{2}=2+2.5^{2}$

$x^{2} +5x+6.25=2+6.25$

$x^{2} +5x+6.25=8.25$

Rewrite as perfect squares

$(x+2.5)^{2}=8.25$

Square Root both sides

$(x+2.5)=(+/-)\sqrt{8.25}$

$x=(+/-)\sqrt{8.25}-2.5$

$\sqrt{8.25}=\frac{\sqrt{33}}{2}$

substitute

$x=(+/-)\frac{\sqrt{33}}{2}-2.5$

therefore

<u>the answer is</u>

the solutions are

$x1=-2.5+\frac{\sqrt{33}}{2}$ or $x1=\frac{-5+\sqrt{33}}{2}$

$x2=-2.5-\frac{\sqrt{33}}{2}$ or $x2=\frac{-5-\sqrt{33}}{2}$

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The correct option is (a) "Total path length". It cannot be negative or zero. Velocity of an object can be negative. If it move in the opposite direction of motion, then its velocity is negative. Acceleration can be negative.

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Yes, x equals 4!
*work if needed*

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