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kenzieeee96
29.10.2021 •
Mathematics
Question 1 (Essay Worth 10 points)
(04.02 MC)
A proportional relationship between the number of pounds of cabbage (x) and the price in dollars (y) is graphed, and the ordered pair (5, 2) is on the graphed line.
Part A: What is the price of 1 pound of cabbage? Show your work. (8 points)
Part B: What does the ordered pair (10, 4) on the graph represent? Explain in words. (2 points)
Question 2 (Essay Worth 10 points)
(04.03 MC)
Trina's Toy Company charges $0.85 per pound to ship toys.
Part A: Write an equation to determine the total cost, c, to ship p pounds of toys. Use your equation to determine the cost of shipping 2 pounds of toys. (6 points)
Part B: If the company reduces the cost to ship toys by $0.05 per pound, write an equation to determine the total cost, c, to ship p pounds of toys with the reduced cost. (4 points)
Question 3 (Essay Worth 10 points)
(04.04 HC)
Sara left a bin outside in her garden to collect rainwater. She notices that 1 over 8 gallon of water fills 2 over 3 of the bin. Write and solve an equation to find the amount of water that will fill the entire bin. Show your work. Explain your answer in words.
Question 4 (Essay Worth 10 points)
(04.05 MC)
The price of a pair of headphones is $39.99 before tax. Dalton bought the headphones for 30% off. He then paid 6% sales tax on the discounted price.
Part A: How much did Dalton pay in sales tax? Show all work and steps in your solution. (5 points)
Part B: What is the total amount that Dalton paid for the headphones? Show all work and steps in your solution. (5 points)
Can I please get help :'>
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Ответ:
x² + 4x – 4 = 8
x²+4x -12 = 0
(x²+2(2)(x)+2²)-2² -12 =0
(x+2)² -16 = 0
(x+2)² = 4²
x+2 = 4 or x+2 = -4
x=2 or x= -6