Answer:

Step-by-step explanation:
You can use these Cramer's formulas to solve for x and y:

where

So,

Answer:
1017.9
Step-by-step explanation:
Find the area of the circle on top first using 3.14*r^2
3.14*9^2 = 254.5
Multiply this number by the height, 4
254.34*4 = 1017.9
Answer:
1.533333 miles per hour
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Answer:
1
Step-by-step explanation:
9 goes into 9 once, so 9/9 = 1