Aprojectile is fired from a cliff 200 above the water at an inclination of 45 degree to the horizontal, with a muzzle velocity of 50 feet per second. the height is given by h(x)= -32x^2/(50)^2+x+200
a. at what horizontal distance from the face of the cliff will the projectile strike the water?

Step-by-step explanation:

The height is given by

We need to find when it strikes the water surface,

At water surface h = 0 feet

Substituting

Solving this quadratic equation to get x.

                 -32x² + 2500x + 500000 = 0

                  32x² - 2500x - 500000 = 0

                  x = 170 .02 feet  or  x = -91.90 feet

Negative x is not possible

Horizontal distance when projectile strikes water surface = 170 .02 feet

don't know sorry bru

step-by-step explanation:

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)