The rectangle below has an area of x^2−4x−12, squared, minus, 4, x, minus, 12 square meters and a length of x+2x+2 x+2 x, plus,
2 meters. What expression represents the width of the rectangle?
1 answer:
Answer:

Step-by-step explanation:
we know that
The area of rectangle is given by the formula

we have


substitute

Solve the quadratic equation of the left side
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
so
substitute in the formula
therefore
substitute in the formula of area

solve for W
simplify

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Answer:
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Step-by-step explanation:
user and pass?
Answer is
Point-slope form: y + 1 = 4(x -1)
Assuming you wanted
Slope-intercept form: y = 4x -5
Step by step
y - - 1 = 4(x -1)
y + 1 = 4(x -1)
y + 1 = 4x -4
y = 4x -5
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Answer: 12.2
Step-by-step explanation:
Answer: 38° and 52°
Steps:
x + 38° = 90°
x = 90° - 38°
x = 52°
90° - 52° = 38°