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Nataliya [291]
4 years ago
13

Simplify. tan(-x).cot(-x)

Mathematics
1 answer:
lyudmila [28]4 years ago
3 0

Answer:

= 1

Step-by-step explanation:

tan(-x).cot(-x) 

tan(-x)  × cot(-x)

Note : cot =reciprocal or inverse of  tan = 1/ tan

Therefore

tan(-x)  × cot(-x)

= tan(-x)  × 1/tan(-x)

= tan(-x)  ÷ tan(-x)

= 1

I hope this was helpful, please rate as brainliest

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Sveta_85 [38]

Answer:

It doesn't say what to do with that 0.1 of a gallon. I would buy another gallon or dilute what I had so it came to exactly 9.1 gallons. In math, I suppose the answer is 9.

In reality it would be 10.

You have to choose.  What has been done with other questions like this.

Step-by-step explanation:

1 can covers 55 square feet.

h = 10

w1 = 10 feet

w2 = 10 feet

w3 = 15 feet

w4 = 15 feet

Total area = Area of wall 1 + wall 2 + wall 3 + wall 4

Total area = 10*10 + 10*10 + 10*15 + 10* 15

Total area = 100  + 100 + 150 + 150

Total area = 500  feet^2

1 gallon / 55 ft^2 = x / 500 ft^2          Cross multiply

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x = 500/55

x = 9.1 gallons.

In real life you would buy another gallon.

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3 years ago
When 50​% of a number is added to the​ number, the result is 210. what is the number?
stellarik [79]
I hope this helps you

4 0
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STatiana [176]
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Answer:

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