If you live in a rectangular city that is 1 mile along the southern border and contains 1000 people, what is the density of peop
le in the city?
1 answer:
Rectangle is twice as long as it is wide
If the length is 1 mile then the width is .5 mile
Area = length x width
= 1 * .5 = .5
Area = .5 square miles
Put population density in the format of 1 square mile
So if there is 1000 people per .5 square miles then there is 2000 people per square mile.
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One number is 4 times the other, so x and 4x.
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Solve for x to get
x=70/5=14
the other number is 4x=4*14=56
General equation of parabola
for vertex(h,k)
Now
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So
equation of parabola
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The number of the product is 9
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17-2(2)(4)-7
17-2(8)-7
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1-7
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Answer:
B
Step-by-step explanation: