Answer D). 9 ft is correct
Height of the ball at a horizontal distance of 10 feet is 9 ft
Step-by-step explanation:
A ball is thrown and it follows a parabolic path. At each horizontal distance (x) the following equation models the ball’s height (y).
Y(x) = ![-0.02x^{2} +0.8x+3](https://tex.z-dn.net/?f=-0.02x%5E%7B2%7D%20%2B0.8x%2B3)
Question asked is " What will be height (Y) of the ball when X=10 ft "
Simply putting value of X in given equation
we get,
Y(x) = ![-0.02x^{2} +0.8x+3](https://tex.z-dn.net/?f=-0.02x%5E%7B2%7D%20%2B0.8x%2B3)
Y(x) = ![-0.02(10)^{2} +0.8(10)+3](https://tex.z-dn.net/?f=-0.02%2810%29%5E%7B2%7D%20%2B0.8%2810%29%2B3)
Y(x) = ![-0.02(100)} +8+3](https://tex.z-dn.net/?f=-0.02%28100%29%7D%20%2B8%2B3)
Y(x) = ![-2 +8+3](https://tex.z-dn.net/?f=-2%20%2B8%2B3)
Y(x) = ![9](https://tex.z-dn.net/?f=9)
<em>Therefore,</em> Height of the ball at a horizontal distance of 10 feet is 9 ft
Answer D. 9 ft is correct
They would have to sell around a 1000 newspapers
To determine this, we need to multiply 8 by 36 and 3 by 4 to get the total area.
8 x 36 = 288
3 x 4 = 12
Subtract the two to get the total area she is painting.
288-12 = 276
Your total area is 276 sq ft.
Your answer is D.)
I hope this helps!
Answer:
The answer is B
you should still invest in a calculator (: