2x-y = 0 is the correct answer
Since it is a linear function, the rate on change will be constant. Every time the x value goes down by 1, the y goes down by 3 so when x is 2 y is -4 and when x is 3 y is -7.
Answer:
20
Step-by-step explanation:
To round a number to the nearest tenth , look at the next place value to the right (the hundredths). If it's 4 or less, just remove all the digits to the right. If it's 5 or greater, add 1 to the digit in the tenths place, and then remove all the digits to the right.
Left triangle area
.. (1/2)*(30 ft)*(72 ft) = 1080 ft^2
Middle walkway area
.. (20 ft)*(72 ft) = 1440 ft^2
Right triangle area
.. same as left triangle area, 1080 ft^2
Total area
.. 1080 ft^2 +1440 ft^2 +1080 ft^2 = 3600 ft^2
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Check:
Parallelogram area = base*height = (50 ft)*(72 ft) = 3600 ft^2
Perimeter of this triangle
= (8 + 9 + 13) units
= 30 units
