Answer:
About 1.48 seconds
Step-by-step explanation:
"Reach the ground" means that at the very moment that happens, the height of the shoe is 0.
The question now is, what value of x that will make the height (the value of the function) equal to 0.
Assumine the function is h(x) = -142x + 210 (I don't see x in the formula for the function.)
Solve for x:
-142x + 210 = 0
Subtract 210.
-142x = -210
Divide by -142.
x = -210 / -142 = 1.48 seconds (rounded to nearest hundredth)
1. Square
2. (0, 0), (6,3) (6,13),(-0.5,0)
analytic geometry, also called coordinate geometry, mathematical subject in which algebraic symbolism and methods are used to represent and solve problems in geometry. The importance of analytic geometry is that it establishes a correspondence between geometric curves and algebraic equations.