An object is launched at 20 m/s from a height of 65 m. the equation for the height (h) in terms of time (t) is given by h(t) = -4.9t? + 20t + 65. what is the object's maximum height? the numeric answer only, rounded to the nearest meter.

Which statements about these triangles is true

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?