danielleen731
15.07.2019 •
Mathematics
Peter is going to put up 5 walls in the tree house. each wall will be 7 feet high and 7 feet across. he wants to leave room for windows that measure 2 feet by 2 feet. which algebraic expressions will give the total square feet of lumber he will need for the walls if n represents the number of windows he puts in? choose all that apply.
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Ответ:
To find the amount of lumber Peter will need, you will subtract the amount of space needed for the windows from the total area of the 5 walls.
Area of all 5 walls - area of the windows.
5 groups of 49 square feet - n groups of 4 square feet.
5(7 x 7) - n(2 x 2)
245 - 4n would be the simplified expression representing the amount of lumber needed.
Ответ:
Step-by-step explanation:
Let the parent function be:
f(x)Reflection over y-axis:
g(x) → f(-x)Vertical compression by a factor of 1/2:
h(x) → 1/2g(x)Final function in terms of parent function:
h(x) = 1/2f(-x)