Answer:
<h2>
</h2>
Step-by-step explanation:
x - y² = -1 ⇒ - y² = - x - 1 ⇒ y² = x + 1 {x≥-1}
4x² + 9y² = 72
4x² + 9(x + 1)² = 72
4x² + 9(x² + 2x + 1) = 72
4x² + 9x² + 18x + 9 - 72 = 0
13x² + 18x - 63 = 0 ⇒ a = 13, b = 18, c = -63
Answer : f=1
explanation : subtract 26 from both sides and then divide by -20, making f = q
m=24=+(-9,1,3
3
Step-by-step explanation:
Substitute n=3,\pm 1n=3,±1 into 3m-9n=243m−9n=24
Solve for mm in 3m-(-9,1,3)=243m−(−9,1,3)=24
Answer:
C = 1000x + 115 (Answer B)
Step-by-step explanation:
We know that..
C = 20y + 15
y = 50x + 5
So put the Y value in the equation of C
C = 20 (50x + 5) + 15
C = 1000x + 100 +15
C = 1000x + 115
I got you. it is B i believe <span />
