X^2 -kx-15=0 where -3 is one solution

You mean: What is k if -3 is one of the solutions or is the only solution. Poorly formatted but I'll answer it anyway.

We have

.

Then substitute x with -3 and solve for k

Hope this helps.

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine

$9.41

step-by-step explanation: