15. Choose the graph of 3x + y = -2. A. 41 -6 -4 -2
1 answer:
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Answer:
The length of the base is
Step-by-step explanation:
Since we know the formula to find the area of a triangle is , we can plug in and solve for b. When we plug into the formula we get:
=
First multiply by 2 on both sides to get rid of the 1/2 on the left. After doing this we get:
Then we can multiply by 5 on both sides to get rid of the 1/5 on the left. After doing this we get out answer:
Answer:
<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
