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svetlana [45]
2 years ago
5

Edward drove 275 miles in 212 hours and 357.5 miles in 314 hours. If he drove at a constant rate, how much distance did he trave

l every hour? Enter your answer in the box below. miles
Mathematics
1 answer:
bezimeni [28]2 years ago
7 0

Answer: 1.2 Miles

Step-by-step explanation:

Add total miles together: 275 + 357.5 = 632.5 miles total

Add total hours together: 212 + 314 = 526 hours total

Divide total miles driven by total time:

632.5 ÷ 526 = 1.20247147843 miles an hour

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Given f(x)=-1/7√16-x^2 find f^-1(x)
Vera_Pavlovna [14]

Answer:

f^{-1}(x)=\pm \sqrt{49x^2-16}

Not a function.

Step-by-step explanation:

The given function is;

f(x)=-\frac{1}{7}\sqrt{16-x^2}

Let y=-\frac{1}{7}\sqrt{16-x^2}

Interchange x and y;

x=-\frac{1}{7}\sqrt{16-y^2}

Solve for y;

-7x=\sqrt{16-y^2}

Square both sides

(-7x)^2=(\sqrt{16-y^2})^2

49x^2^2=16-y^2

49x^2^2-16=y^2

y=\pm \sqrt{49x^2-16}

The inverse is

f^{-1}(x)=\pm \sqrt{49x^2-16}

f^{-1}(x)=\pm \sqrt{49x^2-16} is not a function because one x-value maps onto to different y-values.

6 0
3 years ago
it takes trevon ten hours to clean an attic. cody can clean the same attoc in seven hours.find how long it would take them if th
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8 0
2 years ago
The security alarm on a parked car goes off and produces a frequency of 951 hz. the speed of sound is 343 m/s. as you drive towa
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3 years ago
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