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Y_Kistochka [10]
2 years ago
9

Find value of: cot^-1 (4) (inverse of cotangent). Give the reason of using cosine to evaluate.

Mathematics
1 answer:
solmaris [256]2 years ago
7 0
Cot x = cos x / sin x
or Cot x = 1/ tan x
Given:
Cot x = 4
Tan x = 1/4
x = 14.03 degrees
 
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Pls answer this I need this in 5 mins
zzz [600]

Answer:

x=17

Step-by-step explanation:

3x+5+2x=90

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x=17

8 0
3 years ago
Read 2 more answers
A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X aspirin
swat32
You would use cross multiplication:

X/2,000 = 3/5
Multiply: 2,000*3= 6,000
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3 years ago
Help Please. Can't seem to understand how to do this. I have tried and watch over 5 videos. Can't seem to get it.​
Snezhnost [94]

Answer:

The solutions are the following:

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7 0
2 years ago
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Lynna [10]

Answer:

it will be 14.10 because 2.35x 6 equals 14.10$

Step-by-step explanation:

7 0
3 years ago
Need help with this please
Katarina [22]

Answer:

The third side is sqrt(77)

Step-by-step explanation:

Since this is a right triangle we can use the Pythagorean theorem

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

2^2 + b^2 = 9^2

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Take the square root of each side

sqrt(b^2) = sqrt(77)

b = sqrt(77)

The third side is sqrt(77)

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3 years ago
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