Answer:
2.33 Seconds
Step-by-step explanation:
The equation y = -6t^2 - 10t + 56 expresses the height of a ball at a given time, t, on the planet Mars. We are also given that the ball is thrown with a velocity of 10 feet per second with the initial height of 56 feet.
To find the amount of time to reach the ground, we can say that the time being found will be when the ball is on the ground, or when y = 0. So we simply set our equation to 0 and solve for t.
y = -6t^2 - 10t + 56
0 = -6t^2 - 10t + 56
0 = -1 (6t^2 + 10t + -56)
0 = -1 (3t - 7) (2t + 8)
(3t - 7) = 0 OR (2t + 8) = 0
3t = 7 OR 2t = -8
t = 7/3 OR t = -4
Since time will not be negative, we will want to choose the positive solution for this quadratic equation.
Hence, the amount of time for the ball to hit the ground will be 7/3 seconds or 2.33 seconds.
Cheers.
Answer:
k = 2.
Step-by-step explanation:
j = c/k where c is a constant.
When k = 3, j = 12 so
12 = c/3
c = 36.
So the relation is j = 36/k
When j = 18
18 = 36 / k
So 18k = 36
k = 2.
Answer:
When you say b 5, do you mean b+5?
Step-by-step explanation:
38,428 - 21,728= $16,700 left over
Answer: That would be xy−4x <3 hope it helps
Step-by-step explanation: all u have to do is multiply the polynomials
