Answer:
Using their equation and the fact that the ball will fall 3 ft before reaching the ground:
3 = 16 t^2 + 50 t + 3 represents the given situation
16 t^2 + 50 t = t (16 t + 50) = 0
16 t + 50 = 0
t = 50 / 16 = 3.12 sec
Answer:
A. (10x4x5) + (5x5x5) Cubic Inches
Step-by-step explanation:
Unit must be cubic inches because you are discussing volume.
Calculate volume of bottom rectangular prism first, then the volume of the upper cube.
I'm not 100% sure, but imma have a go.
Answer:
a = 261; b = 253
Step-by-step explanation:
label candy bar A as a
label candy bar B as b
<u>Make 2 equations.</u>
2b + a = 767 (1)
b + 2a = 775 (2)
<u>Solve for a in (1)</u>
2b + a = 767 (-2b)
a = -2b + 767
<u>Substitute for into (2)</u>
b + 2( -2b + 767 ) = 775 (flip)
2( -2b + 767 ) + b = 775 (solve)
−4b + 1534 + b = 775 (add b)
-3b + 1534 = 775 (subtract 1534 from both sides)
−3b = −759 (divide both sides by 3)
b = 253
<u>Substitute b into (1)</u>
a = -2b + 767 (substitute)
a = -2 (253) + 767 (solve)
a = -506 + 767 (add)
a = 261
Answer:
it c
Step-by-step explanation: