<em>apply the distributive law</em>
-xx * 2 - (-x) * 4
<em>apply minus-plus rules </em>
2xx + 4x
<em>apply exponent rule</em>
-2x² + 4x
<em>i hope this helps :)</em>
Answer:
The answer to your question is below
Step-by-step explanation:
-4x² + 9y² + 32x + 36y - 64 = 0
-4x² + 32x + 9y² + 36y = 64
-4(x² + 8x ) + 9(y² + 4x ) = 64 Factor coefficients
-4(x² + 8x + 4²) + 9(y² + 4x + 2²) = 64 - 64 + 36 Complete trinomials
-4(x + 4)² + 9(y + 2)² = 36 Factor trinomials
Divide by 36
Simplify
Answer:
270.9 ft
Step-by-step explanation:
6 + 300sin(62)
= 270.8842779 ft
Answer:
z = 12xy
Step-by-step explanation:
Given z varies jointly with x and y then the equation relating them is
z = kxy ← k is the constant of variation
To find k use the condition when x = 2 and y = 3, z = 72, that is
72 = k × 2 × 3 = 6k ( divide both sides by 6 )
12 = k , then
z = 12xy ← equation of variation
146 degrees
I just went over this in math and I hope this helps u