13+2(5c-2)=29
(2*5c) and (2*-2)
13+10c-4=29
add 4
13+10c= 33
subtract 13
10c=20
divide by 10
c=2
It is a square trinomial:
4v^2 - 16v + 7 = 0
lets multiply and divide all by 4, the square term coefficient:
(16v^2 - 16(4)v + 28)(1/4) = 0
(4v - 14)(4v - 2)<span>(1/4) = 0
</span>factor 1/4
(4v - 14)(4v - 2)(1/2)<span>(1/2)</span> = 0
and divide each:
(2v - 7)(2v - 1) = 0
Answer:
B
Step-by-step explanation:
4x-5y=2 ...(1)
10x-21y=10 ...(2)
(1)+2(2) gives
24x-47y=22
Answer: A = 38
Steps:
5A = 200 - 10
5A = 190
A = 190/5
A = 38
I hope this helps :)
