HELP ASAP THANKS The equation below represent the path of an object. Use it to answer the following (round to 3 decimal places...no units)

h(t)=-4.9t² + 75t + 150

(a) When does the object hit the ground? ___

(b) What is the maximum height of the object? ___

(c) When does the object reach its maximum height? ___

(d) What is the height of the object at 4.67 seconds? ___

(e) How many times does the object reach a height of 149 meters? ___ (enter a numeric value)

(f) When does the object reach a height of 356 meters? ___ and ___ (enter the smaller value first)

it hits in 18 seconds

maximum hight in 2'09

it reaches maximum height when it is fully expanded

its height in 4.67 seconds is 1'76

it reaches the height of 149 meters 6 times

at 9.32 seconds

Step-by-step explanation:

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!