Answer:
11r²-4r-3
Step-by-step explanation:
soo,, now firstly change the signs of 2nd expression
so,
9r²+5r-11+2r²-9r+8
now
we will combine the same terms like , see next step
9r²+2r²+5r-9r-11+8
11r²-4r-3
Answer:
50.24
Step-by-step explanation:
You will do
(area of a circle) x (hight)
Area of a circle = A
lets say 3.14 is pi
A = 3.14 x 2^2
A = 3.14 x 4
A = 12.56
Now
V = 12.56 x 4
V = 50.24
X + 4/3 = - 2
x = - 10/3
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Answer:
59.4
Step-by-step explanation:

7^2 is 49 and 24^2 567. add them both and you get