Answer:
1428
Step-by-step explanation:
We first find the surface area of the triangle=base times height/2
height=8
We add 15+6=21, 21 times 8=168/2=84
We have 84 for this triangle, so the other triangle's area would also be 84
Now we find the area of the rectangle on the bottom-30 times 15=450
We then find the area of the other rectangle on the right side of the prism=30 times 17=510
Finally the area of the left-side of the prism=30 times 10=300
For the surface area, we add these all up=84+84+450+510+300=1428
Answer:
true
Step-by-step explanation:
Answer:
my bad yall, I seen the comments!! it's 12
Step-by-step explanation:
I'm so sorry!!
Answer:
t = 4.5 seconds
Step-by-step explanation:
It is given that, a golfer hits a ball from a starting elevation of 4 feet with a velocity of 70 feet per second down to a green with an elevation of −5 feet.
The number of seconds t it takes the ball to hit the green can be represented by the equation as follows :
......(1)
We need to find time taken by the ball to land on the green. Solving the quadratic equation (1) we get :
t = -0.125 s and t = 4.5 s
Ignoring t = -0.125 s, we get the time taken by the ball to land on the green is 4.5 seconds.
Answer:
The answer is C.
Step-by-step explanation:
Angle D and angle C are vertical angles. Vertical angles are congruent.
Congruent means they equal each other.
<D = <C
72 = 72