A gate is made up of a rectangle and a semicircle as shown. Tuan wants to put a trim only along the edges of the gate. How much
trim does he need?
1 answer:
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Answer:
The order from greatest to least :
Project B > Project A > Project D > Project C
Step-by-step explanation:
Project A : A 20-inch by 15-inch blueprint with a scale of 1 inch to 4 feet and a projected cost of $22,000.
Scale factor =
Length of the office building on blueprint = l =20 inch
Width of the office building on blueprint = b =15 inch
Real length of the office building on blueprint = L
=
L = 80 feet
Real width of the office building on blueprint = B
B = 60 feet
Area of the building =
Cost of project = $22,000
Cost of project per square foot =
Project B : A 10-inch by 8-inch blueprint with a scale of 1 inch to 8 feet and a projected cost of $25,000.
Scale factor =
Length of the office building on blueprint = l =10 inch
Width of the office building on blueprint = b =8 inch
Real length of the office building on blueprint = L
=
L = 80 feet
Real width of the office building on blueprint = B
B = 64 feet
Area of the building =
Cost of project = $25,000
Cost of project per square foot =
Project C : A 15-inch by 12-inch blueprint with a scale of 1 inch to 6 feet and a projected cost of $27,000.
Scale factor =
Length of the office building on blueprint = l =15 inch
Width of the office building on blueprint = b =12 inch
Real length of the office building on blueprint = L
=
L = 90 feet
Real width of the office building on blueprint = B
B = 72 feet
Area of the building =
Cost of project = $27,000
Cost of project per square foot =
Project D :An 8-inch by 6-inch blueprint with a scale of 1 inch to 12 feet and a projected cost of $30,000
Scale factor =
Length of the office building on blueprint = l = 8 inch
Width of the office building on blueprint = b =6 inch
Real length of the office building on blueprint = L
=
L = 96 feet
Real width of the office building on blueprint = B
B = 72 feet
Area of the building =
Cost of project = $27,000
Cost of project per square foot =
Project B > Project A > Project D > Project C
Answer:
A) y=-x+8
Step-by-step explanation:
Parallel lines have the same slope. So, next you need to find the y-intercept (b) of the line. (see attached work)
