Answer:
12 is 52 i think. i am not sure about 11.
Step-by-step explanation:
im so sorry i know 11:(
I hope this helps on 12 tho
9514 1404 393
Answer:
21. 3x^2 +7x
22. 6x^3 +3x
Step-by-step explanation:
21. The perimeter is the sum of the side lengths.
P = (x^2 +3x +1) +(4x -1) +(2x^2)
P = x^2(1 +2) +x(3 +4) +(1 -1) . . . . combine like terms
P = 3x^2 +7x
__
22. The area is the product of the dimensions.
A = (3x)(2x^2 +1)
A = 6x^3 +3x . . . . . use the distributive property
<span>A) y=x−7
B) </span><span><span>5</span>x+2y=7
A) x = y + 7
Substituting this into B)
</span>
<span>y + 7 +2y = 7
</span>
3y = 0
y = 0
x = 7
Answer is C (7,0)
Equivalent ratios are those ratios which are same that is on simplifying each of them, we will get the same answer.
A.
So they are not equivalent
B.
So they are not equivalent
C.
They are not equivalent too.
D.
And they are equivalent. SO the correct option is D .
