Each expression represents an object’s distance from the ground in meters as a function of time, t, in seconds. Object A: −5t2+25t+50
Object B: −5t2+50t+25
a. Which object was launched with the greatest vertical speed?
b. Which object was launched from the greatest height?
please help.

He expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. if the length is fraction 2 over 3 unit and the width is fraction 1 over 3 unit, what is the perimeter of the rectangle in units? fraction 2 over 3 unit 1 unit 1fraction 2 over 3 units 2 units

Which are factor pairs of 350? choose all answers that are correct. a) 30 and 12 b) 35 and 10 c) 70 and 5 d) 2 and 125

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?