3 years ago

What’s the square root of -100

Mathematics

1 answer:

Alla [95]3 years ago

4 0

Answer: -10

Step-by-step explanation:

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To find the amount of matches won:

120 – 50 = 70

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(Matches won / Total matches ) x 100

(70/120) x 100 = 58.3% (rounded to 1 decimal place)

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Identify the measure of PR in the diagram. PLEASE HELP!!

kykrilka [37]

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The correct answer is : Fourth, PR = 6

Step-by-step explanation:

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4 years ago

If sin(x) = cos(y) for acute angles x and y, how are the angles related?

Vesnalui [34]

Answer:

b. complementary

Step-by-step explanation:

-Complementary angles are angles that add up to 90°.

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#To verify, lets take the two angles 30° and 60°:

$Cos \ 60\textdegree=0.5\\\\Sin \ 30\textdegree=0.5\\\\\therefore Sin \ 30\textdegree=Cos \ 60 \textdegree=0.5$

#We can reverse as:

$Sin \ 60\textdegree=0.86603\\\\Cos \ 30\textdegree=0.86603\\\\\therefore Sin \ 60\textdegree=Cos \ 30\textdegree=0.86603$

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3 years ago