A rock is thrown upward from the top of a cliff. The expression 16x2 + 25x + 800 describes the rock's height from the base of the cliff, in feet, x seconds after it is thrown. What does the
constant term represent?
o The rock takes 800 seconds to hit the ground.
•The maximum height of the rock is 800 feet above the base of the cliff.
•The rock falls at a speed of 800 feet per second.
• The height of the cliff is 800 feet.

21 i watched a 3 hr vid explaining it

step-by-step explanation:

du what else would it be

brainliest

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west