Solve for t. 150=1/2gt2

√30

Step-by-step explanation:

g=9.8m/s^2/approximately g=10m/s^2

for t,

150=1/2×10×t^2

150=5×t^2

150/5=t^2

t=√30s

x + 4/7

step-by-step explanation:

use cymath

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.