Answer:
x₁ = -1
x₂ = 5/6
Step-by-step explanation:
The equations of the given linear system are:
Multiply the first equation by -2 and add it to the second one to solve for x₁:
Since we already know the value of x₁, simply replace it in the first equation to solve for x₂:
The solution for the system is x₁ = -1 and x₂ = 5/6
If you need part A, draw a person and label them 6 feet tall and a shadow coming off of him that is five feet long and draw a basketball hoop that and label it X feet tall and draw a shadow coming from it that is 8 feet long. To solve, you use proportions 6/5=X/8 solving this you get X=9.6 feet which is the height of the rim. Therefore, the rim does not meet regulation height, since the required height (10 feet) is greater than the actual height (9.6 feet).
Answer:
1 and 4, 2 and 3, 5 and 8, 6 and 7
Step-by-step explanation:
Answer:
2100 ft²
Step-by-step explanation:
1 yard is 3 ft, so 70 yards is (70 yd)×(3 ft/yd) = 210 feet.
The area of the pavement is the product of its length and width:
area = (210 ft)(10 ft) = 2100 ft²
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If you keep the units with the numbers as I have done here, you find that the product of (10 ft) and (70 yd) does not have the units of ft². Rather, the units are ft·yd, which is <em>not what the problem is asking for</em>.
