On a windy morning, a hot air balloon starts rising and flying away from the top of a hill. The altitude, h, in feet, of the balloon x hours after starting its ascent from the hill, can be modeled by the function h(x) = –16x2 + 64x + 80. What is the y-intercept for this function and what does it represent in the given situation? A. 80; the beginning height of the hot air balloon

B. 80; how long the hot air balloon was in the air

C. 5; the ending height of the hot air balloon

D. 5; how long the hot air balloon was in the air

at home andrea has 1 2/3 kilograms of rice

step-by-step explanation:

the correct answer is

c. 4

step-by-step explanation:

the given polynomial is

the degree of the polynomial is the highest exponent which is 4.

the -4 is called the leading coefficient.

this polynomial has only one term so it is a monomial.

the correct answer is option c.

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!