Answer:
271 boxes
Step-by-step explanation:
Answer:
m = 7
Step-by-step explanation:
2m + -4 = 10
Reorder the terms:
-4 + 2m = 10
Solving
-4 + 2m = 10
Solving for variable 'm'.
Move all terms containing m to the left, all other terms to the right.
Add '4' to each side of the equation.
-4 + 4 + 2m = 10 + 4
Combine like terms: -4 + 4 = 0
0 + 2m = 10 + 4
2m = 10 + 4
Combine like terms: 10 + 4 = 14
2m = 14
Divide each side by '2'.
m = 7
Simplifying
m = 7
Sorry but I dont think you are gonna get the answer in 4 minutes
a. At its maximum height, the ball has zero vertical velocity, so
![-\left(28\dfrac{\rm m}{\rm s}\right)^2=2(-g)(y_{\rm max}-17\,\mathrm m)](https://tex.z-dn.net/?f=-%5Cleft%2828%5Cdfrac%7B%5Crm%20m%7D%7B%5Crm%20s%7D%5Cright%29%5E2%3D2%28-g%29%28y_%7B%5Crm%20max%7D-17%5C%2C%5Cmathrm%20m%29)
![\implies y_{\rm max}=57\,\mathrm m](https://tex.z-dn.net/?f=%5Cimplies%20y_%7B%5Crm%20max%7D%3D57%5C%2C%5Cmathrm%20m)
b. The ball's height in the air
at time
is given according to
![y=17\,\mathrm m+\left(28\dfrac{\rm m}{\rm s}\right)t-\dfrac g2t^2](https://tex.z-dn.net/?f=y%3D17%5C%2C%5Cmathrm%20m%2B%5Cleft%2828%5Cdfrac%7B%5Crm%20m%7D%7B%5Crm%20s%7D%5Cright%29t-%5Cdfrac%20g2t%5E2)
Solve for
when
:
![17+28t-4.9t^2=0\implies t\approx6.3\,\mathrm s](https://tex.z-dn.net/?f=17%2B28t-4.9t%5E2%3D0%5Cimplies%20t%5Capprox6.3%5C%2C%5Cmathrm%20s)
Answer:
34.2 m
Step-by-step explanation:
We know that
Area of parallelogram = Base × Height
690.84 = B × 20.2
690.84/20.2 = B
34.2 = B
Hence,
Base of parallelogram is 34.2 m