An object is launched from a platform. Its height (in meters), xxx seconds after the launch, is modeled by:
h(x)=-5x^2+20x+60h(x)=−5x
2
+20x+60h, left parenthesis, x, right parenthesis, equals, minus, 5, x, squared, plus, 20, x, plus, 60
How many seconds after launch will the object land on the ground?

ege

step-by-step explanation:

egge

the correct answer is semicircle

step-by-step explanation:

the answer is semicircle because the shorter arc joining two points on the circumference of a circle is known as the minor arc, the larger arc is called the major arc, and a semicircle is a half circle, formed by cutting a whole circle along a diameter line.

hope i .

2

step-by-step explanation:

answer: 0.26

i used the calculator on google