3 years ago

It is 7 km from Kerry's house to the mall. About what is that distance in miles?

Mathematics

2 answers:

gavmur [86]3 years ago

7 0

1 km = 0.62137... mile (rounded)

7 km = 4.3296... miles (rounded)

miskamm [114]3 years ago

7 0

4.3496 miles is the answer because if you Round up you it.

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After a 75% reduction, you purchase a new DVD player on sale for $136. What was the original price of the DVD player

iogann1982 [59]

Answer:

$544

Step-by-step explanation:

To determine the original price of the DVD player considering that you know that it had a 75% reduction, you can use a rule of three as the price of $136 represents 25% of the original price and with this you can calculate the price that represents 100%:

$136 → 25%

x ← 100%

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According to this, the answer is that the original price of the DVD player was $544.

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3 years ago

What is the exact value of tan (StartFraction 5 pi Over 8 EndFraction)

melisa1 [442]

9514 1404 393

Answer:

(d) -√((2+√2)/(2-√2))

Step-by-step explanation:

5π/8 is a 2nd-quadrant angle whose reference angle is greater than π/4. This means the tangent is negative with a magnitude greater than 1. The only reasonable choice is ...

$\displaystyle -\sqrt{\frac{2+\sqrt{2}}{2-\sqrt{2}}}$