X^2 - 4x = 5
(x - 2)^2 = 5 + 4
x - 2 = +/- sqrt 9
x - 2 = +/- 3
answer x = -1, 5
Answer:
8a+7b
Step-by-step explanation: 6+2=8 3+4=7
Answer:$160
Step-by-step explanation:
(100*40)/25= $160
Answer:2*2=4
4^3=4*4*4=64
Step-by-step explanation:
Answer:
<h2>

</h2>
Step-by-step explanation:
According to the question,
∝
.......(1)
∝
.......(2)
From equation 1,2 let constant of proportionality be
respectively.
⇒
.......(3)
⇒
.......(4)
From the above equations putting 4 into 3,

Let the new constant to the above equation be
,

Given,if x=1, when z=4

⇒
Now if x=27, then z=?

⇒
⇒
