I dont think the answer is 129 unless you typed the problem in wrong. Order of operations say to do everything inside the perenthesis first so you would do the 3*2 which is 6 then divide the 12 by 6 and you get 2. so your new equation is 8^2+9(2)-7. Next distribute the 9 to the 2 that is inside the perenthesis. Square root the 8 also. Now it is 49+18-7. The answer would be 60 ...?
Answer:

Step-by-step explanation:
The inverse of a slope is the exact opposite slope of the original. I'll show a function below where you can easily solve future problems if you need to.

m is the slope, so for the equation above, you simply insert the original slope, being 1, in the equation.

So the inverse slope would be -1.
Answer: 21/40
Step-by-step explanation:
I did the test
Use the formula
(
b
2
)
2
in order to create a new term. Solve for
x
by using this term to complete the square.
Exact Form:
x
=
±
√
5
−
8
Decimal Form:
x
=
−
5.76393202
…
,
−
10.23606797
9514 1404 393
Answer:
x = 22.5
Step-by-step explanation:
The angle bisector divides the triangle sides proportionally.
x/30 = 24/32
x = 30(24/32)
x = 22.5