Substitute
and
. Then the integral transforms to

Apply the power rule.

Now put the result back in terms of
.

Answer:
Step-by-step explanation:
2x + 3y = 51........(1)
- x+2y = 8...........(2)
Making x as subject in equation (2)
-x = -2y + 8
x = 2y - 8.........(3)
Substituting (3) in (1)
2(2y - 8) + 3y = 51
4y - 16 + 3y = 51
Collecting like terms
4y + 3y = 51 + 16
7y = 67
y = 67/7
y = 9 4/7
And x = 2y - 8
x = 2(67/7) - 8
x = 134/7 - 8
x = (134 - 56)/7
x = 78/7
x = 11 1/7
A.)
v = 400d
d = v ÷ 400
b.)
<u>d __ v
</u>1, 400<u>
</u>2, 800
3, 1200
<u />
Hi! so in order to do this problem, you need to figure out what percent 76 is of 80. you can do this by dividing 76 by 80! so just do 76/80, and convert to a percent!