Answer:
(a) 4 seconds
Step-by-step explanation:
The given point (4, 0) on the parabola tells you the answer to the question: the coin was in the air 4 seconds before its height is 0. It is no longer in the air at that point.
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<em>Additional comment</em>
In order to match the rest of the problem statement, the first given x-intercept must be (-2, 0).
9 less than means decrease by 9 or minus 9 or -9
9 less than some number (k) means k-9
las one
22 is 44% of 50 here is ure answer
Answer:
Option (2)
Step-by-step explanation:
Formula to get the distance between two points
and
is,
d = ![\sqrt{(x_2-x_1)^2+(y_2-y_1)^2](https://tex.z-dn.net/?f=%5Csqrt%7B%28x_2-x_1%29%5E2%2B%28y_2-y_1%29%5E2)
The given points are A(2, 7) and B(-4, -3)
Distance between these points will be,
AB = ![\sqrt{(2+4)^2+(7+3)^2](https://tex.z-dn.net/?f=%5Csqrt%7B%282%2B4%29%5E2%2B%287%2B3%29%5E2)
= ![\sqrt{6^2+10^2}](https://tex.z-dn.net/?f=%5Csqrt%7B6%5E2%2B10%5E2%7D)
= ![\sqrt{136}](https://tex.z-dn.net/?f=%5Csqrt%7B136%7D)
= 11.66
≈ 11.7 units
Therefore, distance between the points A and B is 11.7 units.
Option (2) will be the answer.