X² + x 13. Find the domain of the function: f(x)=
x2 - 7x+10
A. All real numbers except -2 and 5
B. All real numbers except -2 and 5
O C. All real numbers except 2 and 5
O D. All real numbers except 2 and 5
Hel fas

d

step-by-step explanation:

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

ome people is not even worth it to even try it in the air.

step-by-step explanation: