Is the slash supposed to be a fraction if it the answer is -443
Lennie used associative law of addition.
a + (b + c) = (a + b) + c
hope that helps, God bless!
Answer:
1). Simplifying
-4x + y = 6
Solving
-4x + y = 6
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1y' to each side of the equation.
-4x + y + -1y = 6 + -1y
Combine like terms: y + -1y = 0
-4x + 0 = 6 + -1y
-4x = 6 + -1y
Divide each side by '-4'.
x = -1.5 + 0.25y
Simplifying
x = -1.5 + 0.25y
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2). Simplifying
-5x + -1y = 21
Solving
-5x + -1y = 21
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add 'y' to each side of the equation.
-5x + -1y + y = 21 + y
Combine like terms: -1y + y = 0
-5x + 0 = 21 + y
-5x = 21 + y
Divide each side by '-5'.
x = -4.2 + -0.2y
Simplifying
x = -4.2 + -0.2y
Answer:
c. right
Step-by-step explanation:
the anwser is C right
Answer:

Step-by-step explanation:
See the attached figure.
y₁ = 25x and y₂ =x²
The intersection between y₁ and y₂
25x = x²
x² - 25x = 0
x(x-25) = 0
x = 0 or x =25
y = 0 or y =25² = 625
The points of intersection (0,0) and (25,625)
To find the volume of the solid obtained by rotating about the y-axis the region bounded by y₁ and y₂
y₁ = 25x ⇒ x₁ = y/25 ⇒ x₁² = y²/625
y₂ =x² ⇒ x₂ = √y ⇒ x₂² = y
v = ∫A(y) dy = π ∫ (x₂² - x₁²) dy
∴ V =
