Answer:
Step-by-step explanation:
-3x - 21 + 2x -4
-x - 25
-(x + 25)
Answer:
36 and -1/8
Step-by-step explanation:
x^2 = 3^2 = 9 * 4 = 36
y^-3 = (-2)^-3 = -1/8
First replace y with 15.
1/5x-10=30
Then just solve from there.
x=200
Answer:
113.1cm
Step-by-step explanation:
area=
r²
r= half the diameter r=6
a=
6²
a=
36
a=113.1 cm
Answer:

Step-by-step explanation:
We can add the two equations to eliminate
and solve for
.



Now, we can find for
by using substitution:
(given)


Hope this helps :)