3 years ago

Verify the identity. tan(x+(pi/2)) = -cot x

1 answer:

4 0

Tan (x + π/2) = [sin (x + π/2) / cos (x + π/2)] = [sin x cos π/2 + sin π/2 cos x] / [cos x cos π/2 - sin x sin π/2] = cos x / - sin x = -cot x

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Can u pls help me with this question

Romashka [77]

Answer: It would be B 9/50

Step-by-step explanation: if you take 3/7 and x it by 0.1 you get 0.04285714285 and then if you divide that by 5/21 you get 0.18 which equals 9/50 as a fraction

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3 years ago

Find the value please help me

Lemur [1.5K]

The answer is 318

Hope this helps

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3 years ago

Read 2 more answers

write an equation using ''x'' and then solve the equation. on the new year eve there were 7,580 tons of cargo loaded in the morn

vovikov84 [41]

Answer: 12,997 - 7,580 = x

x= 5417

Step-by-step explanation: 12,997 - 7580 = 5417

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4 years ago

Give a real world example of a rate for a unit rate of 40 miles per hour

Zina [86]

A person drives 500 miles in 5 hours.

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4 years ago

A jar contains 1,200 M&M's and everyday your family eats 1/5th of the candies. After how many days will there be 314 M&M

mrs_skeptik [129]

The equation is 314 = 1,200 - 240x

1,200 is the number of M&M's it starts with
The problem said the family eats 1/5th of the candy every day
1/5 of 1,200 is 240
It is a -240 because the amount of m&m's is getting fewer each day
The x stands for the number of days

Sorry but I'm not sure if I could answer your problem exactly
The answer is 3.69 days
Because there isn't an exact day that there would exactly 314 M&M's left

7 0

3 years ago