Answer:
Option C, 6.5
Step-by-step explanation:
<u>Step 1: Substitute y in the equation 3x - 5y = 22</u>
3x - 5y = 22
3x - 5(-5x + 32) = 22
3x + 25x - 160 + 160 = 22 + 160
28x / 28 = 182 / 28
x = 6.5
Answer: Option C, 6.5
<span>6x^2 - 21x = 3x(2x - 7)
hope it helps</span>
Answer:
Dom(gof)=Dom(f)={1,3,4}.
(gof)(1)=g{f(1)}=g(2)=3.
(gof)(3)=g{f(3)}=g(5)=1.
(gof)(4)=g{f(4)}=g(1)=3.
∴gof={(1,3),(3,1),(4,3)}.
Numbers 2, 4 and 5 are the correct answers.
Hope this helps!
5.7y-5.2=y/2.5
Add 5.2 to both sides:
5.7y = y/2.5 + 5.2
y/2.5 = 0.4y
5.7y = 0.4y + 5.2
Subtract 0.4y from both sides:
5.3y = 5.2
Divide both sides by 5.3:
y = 5.2/5.3
y = 0.98113
