Answer:
45.71 = original price
Step-by-step explanation:
The sale price is equal to the original price minus the discount
sale price = original price - discount
The discount is equal to the original price times the percent off
discount = original price * percent off
Substitute into the first equation
sale price = original price - original price * percent off
Factor out the original price
sale price = original price (1-percent off)
We know the sale price=32 and the discount = 30% = .3
32 = original price (1-.3)
32 = original price (.7)
Divide each side by .7
32/.7 = original price (.7)/.7
45.71 = original price
Remember that, although it may look intimidating, (f+g)(x) is simply f(x) + g(x)
Therefore:
(f+g)(x) = f(x) + g(x) Substitute the functions for f(x) and g(x)
(f+g)(x) = (2x² + 1 )+ (x² - 7)
Notice that we first want to write the functions in as parenthesis before we add them. This helps us keep from getting confused on what signs to give each term.
(f+ g)(x) = 2x² + x² + 1 - 7 Collect like terms
(f + g) (x) = 3x² - 6
Answer is B
Answer:
2.37
I hope this helps, also next time make sure your question makes sense
