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Natalka [10]
3 years ago
10

Which of these is equal to cos 47°? a. cos 43° b. sin 43° c. tan 43° d. cos 133°

Mathematics
2 answers:
Iteru [2.4K]3 years ago
6 0
Complementary angles are angles whose sum is equal to 90 degrees. The cosine of an angle is equal to the sine value of its complementary. In this case, the complementary of 47 degrees is 43 degrees. Hence cosine 47 should be equal to sin 43. That is letter B
patriot [66]3 years ago
4 0
Hello,

cos (47°)= sin (90°-47°)=sin (43°) [complementary angles]

Answer B
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Answer:

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Step-by-step explanation:

Simplify the following:

48/6 - 10/3

Hint: | Reduce 48/6 to lowest terms. Start by finding the GCD of 48 and 6.

The gcd of 48 and 6 is 6, so 48/6 = (6×8)/(6×1) = 6/6×8 = 8:

8 - 10/3

Hint: | Put the fractions in 8 - 10/3 over a common denominator.

Put 8 - 10/3 over the common denominator 3. 8 - 10/3 = (3×8)/3 - 10/3:

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Hint: | Multiply 3 and 8 together.

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5 0
3 years ago
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Answer: 180 is the sum of the tringles


Step-by-step explanation:

2x+7x+11x=180

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Now you should put the the value of x to get the angles

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Now to double check add all of them together

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Step-by-step explanation:

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