21 Die Höhe eines geschlagenen Golfballs über dem Grund in feet wird
durch die Funktion h(t) = -156 + 90t
gegeben. t ist die Zeit in Sekunden
nach dem Abschlag.
a) Wie lange ist der Ball in der Luft?
b) Zu welchem Zeitpunkt hat der Ball
die größte Höhe über dem Grund? Wie
hoch ist der Ball dann?​

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2