Answer:
-47
Step-by-step explanation:
Step 1: Factor GCF
-6(x² - 6x - 36) = 0
Step 2: Divide by -6 on both sides
x² - 6x - 36 = 0
Step 3: Isolate x's
x² - 6x = 36
Step 4: Complete the Square
x² - 6x + 9 = 36 + 9
(x - 3)² = 45
Step 5: Move everything to one side
(x - 3)² - 45 = 0
So, a = 1, b = -3, c = -45
1 - 3 - 45 = -47
y =
To find the value of y when x = 4 in a direct variation equation, we first solve for the constant of variation, k. Once we have k, we can substitute x = 4 into the equation and solve for y.
To find the value of y when x = 4, we can use the formula for direct variation:
y = kx
where k is the constant of variation. We can solve for k using the given information:
When x = 8, y = 48. Plugging these values into the formula, we get:
48 = k * 8
Solving for k, we find that k = 6.
Now we can use k to find the value of y when x = 4:
y = 6 * 4
y = 24
#SPJ2
Answer:
≈ 44.65(7) m²
Step-by-step explanation:
A = π·r²·80°/360° = 3.14×64×80/360 ≈ 44.65(7) m²