Answer:
48
Step-by-step explanation:
x/3 - 6 = 10
+6 +6
x/3=16
16*3=48
Answer:
B
Step-by-step explanation:
First, we are decreasing the number so it has to be a decrease.
Next, we divide 7/31 and get around 0.23, which also represents 23 percent.
This only shows that 7 is 23 percent of 31, so we need to find the decrease by seeing the difference of 100 and 23.
We get 100 - 23 = 77, and because it is a decrease we get B.
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)
368 spaces now, why?
There are 22 spaces per row, and we know there are 8 rows, so thats 176 spaces last month,
we add 4 spaces to each row of 22, thats 26 spaces per row, 26 * 8 = 368 total spaces
I think it is C
Hope my answer help you!
Tell me if it wrong or No!