Mathematics: Find the area of right triangle abc.

Using the factor theorem, we haveand expanding gives usSo we have...

Find the area of right triangle abc.

amanda2517

29.05.2020

16 because the base is 8 and the height is 4. That equals 32. 32/2=16

0,0(0 оценок)

goblebrandon

26.03.2021

Using the factor theorem, we have

7x^2+x-5=7(x-a)(x-b)

and expanding gives us

$7x^2+x-5=7(x^2-(a+b)x+ab)\implies\begin{cases}ab=-5\\a+b=-1\end{cases}$

So we have

$(a-4)(b-4)=ab-4(a+b)+16=-5-4(-1)+16=\boxed{15}$

0,0(0 оценок)