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nirvana33 [79]
3 years ago
15

Find the exact value of tan -75

Mathematics
1 answer:
anyanavicka [17]3 years ago
3 0

Answer:

-2 + \sqrt{3}

Step-by-step explanation:

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What are the next three terms of the following geometric sequence: 32, 48, 72...
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32

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48

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72

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108

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Step-by-step explanation:

6 0
2 years ago
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Mrs. Jones decided to buy some pencils for her class. She bought 5 packages of pencils, and each package contained 42 pencils. T
lisov135 [29]

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A well mixed tank with a capacity of 1500 gals originally contains 1000 gallons of freshwater. One pipe containing 1/2 lb of sal
Illusion [34]

Answer:

400 lb of salt

Step-by-step explanation:

Let us assume the water flows into the rank for x minutes.

There is an initial of 1000 gallons of water in the tank and water flows in through one pipe at 4 gal/min and through another pipe at 6 gal/min. In x minute, the amount of water in the tank = 1000 + 4x + 6x = 1000 + 10x

Water flows out at 5 gal/min, therefore in x minute the amount of water in the tank = 1000 + 10x - 5x = 1000 + 5x

The tank begins to overflow when it is full (has reached 1500 gallons). Therefore:

1500 = 1000 + 5x

5x = 1500 - 1000

5x = 500

x = 100 minutes.

1/2 lb salt per gallon flows into the tank at 4 gal/min and 1/3 lb of salt is flowing in at 6 gal/min, in 100 min the amount of salt that entered the tank = 4 gal/min × 100 min × 1/2 lb/gal + 6 gal/min × 100 min × 1/3 lb/gal= 400 lb

Therefore the amount of salt is in the tank when it is about to overflow = 400 lb of salt

7 0
3 years ago
The wheels on Reggie’s bike each have a 20-in. diameter. His sister’s mountain bike has wheels that each have a 26-in. diameter.
ExtremeBDS [4]
The answwer is 30 inches
6 0
3 years ago
Please help me I don’t know the answer
lukranit [14]

Answer:

D

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the highest real number stops at 4, which means all the sets of real number are less than 4.

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3 years ago
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