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3 years ago

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A model rocket was placed on the Lincoln football field and launched. The rocket follows the path r(x)=-2(x-2)(x-12) where x=hor

izontal yards traveled and y= height in feet. From what yard line was the rocket launched from?how do you know?

1 answer:

Bond [772]3 years ago

6 0

Step-by-step explanation:

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Please answer this question only if you know the answer!

Feliz [49]

Answer:

b. 6 cm

Step-by-step explanation:

Q is the midpoint of PR, so QR = PR/2 = (12 cm)/2 = 6 cm

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NOTE: $\left(x-\dfrac{1}{2}\right)^2=x^2-x+\dfrac{1}{4}$

$x^2-x-7=0 \\ \\ \underbrace{x^2-x+\frac{1}{4}}_{\left(x-\frac{1}{2}\right)^2}-7\dfrac{1}{4}=0 \\ \\ \\ \left(x-\frac{1}{2}\right)^2=7\frac{1}{4}=\frac{29}{4} \qquad /\sqrt{}\\ \\ \left|x-\frac{1}{2}\right|=\dfrac{\sqrt{29}}{2} \\ \\ x_1=\dfrac{1}{2}-\dfrac{\sqrt{29}}{2} \approx -2.19 \\ \\ x_2=\dfrac{1}{2}+\dfrac{\sqrt{29}}{2} \approx 3.19$

ANSWER: c)

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Find the square root of 1010001 base two,leaving ur answer in base

lord [1]

(101001/4) 1/2

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MakcuM [25]

Answer:

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Step-by-step explanation:

10/12=8.3333333 and 8.3333333*27.5=22.916666666 repeated

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