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krok68 [10]
3 years ago
11

An airplane is flying 4,200 feet above the ground at an angle of depression of 7.8°. How far must the plane fly in order to land

? Round your answer to the nearest foot. 4,239 feet 30,947 feet 30,661 feet 32,583 feet
Mathematics
1 answer:
Lostsunrise [7]3 years ago
3 0
It will equal 366666 and 4333
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How do you solve 3 1/4- 1 7/8 step by step?
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Answer:

1 3/8.

Step-by-step explanation:

3 1/4 - 1 7/8

First convert to improper fractions:

3 1/4 = (3*4) + 1 / 4 =  13/4.

1 7/8 = (1 *8)+7 / 8 = 15/8. So we have:

13/4 - 15/8

The Lowest Common Multiple of 4 and 8 is 8 so we convert 13/4 to eighth's

13 / 4 = 13*2 / 4 *2 = 26/8

Finally: we have

26/8 - 15/8 = (26 - 15) /8

= 11 /8

= 1 3/8 (answer)

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Kaitlin's account will have 72% of the money initially invested, that is, about $ 6,192.

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Given that last year Kaitlin opened an investment account with $ 8,600, and at the end of the year, the amount in the account had decreased by 28%, to determine the year-end amount in terms of the original amount both in whole numbers and in decimals, the following calculation must be performed:

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