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3 years ago

The runners speed per mile

Mathematics

2 answers:

dezoksy [38]3 years ago

8 0

Answer:10 minutes per mile

Step-by-step explanation:

antiseptic1488 [7]3 years ago

3 0

Answer:

The runner's speed is 10 minutes per mile.

Step-by-step explanation:

When looking at the graph, the first dot lands at 1.0 miles for the x-axis and 10 for the y-axis, the y-axis being in minutes. Therefore, someone can run 1.0 miles in 10 minutes.

In addition, the second dot lands on (2.0, 20), meaning he/she ran 2.0 miles in 20 minutes. Divide that by 2 and you get 1.0 miles in 10 minutes.

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Use a half-angle identity to find the exact value of sinPi/8

stellarik [79]

Answer:

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Step-by-step explanation:

Using the half-angle formula ...

$\sin{\dfrac{\theta}{2}}=\sqrt{\dfrac{1-\cos{\theta}}{2}}$

We can let θ = π/4 and simplify the result as follows:

$\sin{\dfrac{\pi}{8}}=\sqrt{\dfrac{1-\cos{(\pi/4)}}{2}}=\sqrt{\dfrac{1-\dfrac{\sqrt{2}}{2}}{2}}=\sqrt{\dfrac{2-\sqrt{2}}{4}}\\\\=\boxed{\dfrac{1}{2}\sqrt{2-\sqrt{2}}}}$

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Step-by-step explanation:

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Vanyuwa [196]

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3 years ago

at the pet fair, Darlene's dog weighed 5 times as much as leah's dog. Together, the dogs weighed 84 pounds. how much did each do

Alex

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ZanzabumX [31]

Answer:

X is < 8

Step-by-step explanation:

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