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WGU 771 Formulas Questions and Answers

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Exam of 2 pages for the course WGU D771 at WGU D771 (WGU 771 Formulas)

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WGU 771 Formulas

What is the slope-intercept form of a line? - answery=mx+b
m=slope
b=y-intercept

How do you calculate slope? - answerrise/run
Rise= up and down ... Run = side to side

How do you find the markup amount? - answerMarkup = percent markup × cost

How do you calculate retail price? - answerRetail price = cost + markup

How do you calculate total price including sales tax? - answer Total price = purchase
price × (1 + tax rate)

What is the 80/20 budget rule? - answerSpend 80%
Save 20%

What is the 50/30/20 budget rule? - answer50% needs,
30% wants,
20% savings

What is the formula for simple interest? - answerI = P × r × t
(Interest = Principal × Rate × Time)

How do you calculate total amount with simple interest? - answerA = P × (1 + rt)

What is the formula for compound interest? - answerPN = P × (1 + r/k)^(N × k)

What is the simplified compound interest formula for once per year? - answerPN = P ×
(1 + r)^N

How do you find the perimeter of a rectangle? - answerP = 2l + 2w

How do you find the area of a rectangle? - answerLength x Width

What is the formula for circumference of a circle? - answerC = 2πr

What is the formula for area of a circle? - answerA = πr²

What is the formula for volume of a rectangular prism? - answerV = l × w × h

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