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3 years ago

BRAINLIEST!!! 2. Use the unit circle to find the value of cot (–90°).

Mathematics

1 answer:

Sholpan [36]3 years ago

3 0

Answer:

cot(- 90)° = 0

Step-by-step explanation:

Using the identity

cot x = $\frac{cosx}{sinx}$ , then

cot(- 90)° = $\frac{cos(-90)}{sin(-90)}$ = $\frac{0}{-1}$ = 0

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Answer:

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2 years ago

PLEASE ANWSER CORRECTLY!! I WILL MARK BRAINIEST!!

katen-ka-za [31]

Answer:

A) 33

B) 58

Step-by-step explanation:

A is 33 because supplementary angles add up to 180 in total. 180 - 147 = 33, so its supplementary angle would be 33 degrees.

B is 58 because complementary angles add up to 90 in total. 90 - 32 = 58, so the complementary angle would be 58 degrees.

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2 years ago

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For one History test, Keith had to answer 40 questions. Of these 40 questions, Keith answered 28 of them correctly. What percent

muminat

Answer:

Keith scored 70% on the History test.

Step-by-step explanation:

We have been given that for History test, Keith had to answer 40 questions. Of these 40 questions, Keith answered 28 of them correctly.

To find the percentage Keith got on History test, we will have to figure out 28 is what percent of 40.

$\text{Percentage scored by Keith on History test}=\frac{28}{40}\times 100$

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$\text{Percentage scored by Keith on History test}=70$

Therefore, Keith scored 70% on the History test.

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3 years ago

PLEASE HELP!!!!!! ILL GIVE BRAINLIEST *EXTRA 40 POINTS** !! DONT SKIP :((

bagirrra123 [75]

Answer:

B is the answer

Step-by-step explanation:

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2 years ago

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The area of a rectangle is found by multiplying its length and width together. Calculate the area, in square feet, of the room y

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Answer:

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Step-by-step explanation:

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