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2 years ago

The value of cosine is undefined at pi and 2pi radians. TRUE FALSE

Mathematics

1 answer:

Naddika [18.5K]2 years ago

4 0

Answer: False

Step-by-step explanation:

False, the value of cosine at pi and 2pi is equal to -1 and 1 respectively. You can test this by using the pi circle or a calculator. Let pi = 180 degrees. Cosine is always defined and alternates between 1 and -1.

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How do you solve this?

navik [9.2K]

Answer:

Step-by-step explanation:

Since you know that JK + KL = JL, this would be:

27 + 3x - 1 = 5x + 2

Now, solve this equation:

combine like terms first

$26+3x=5x+2$

subtract 3x from both sides

$26 = 2x+2$

subtract 2 from both sides

$24 = 2x$

divide both sides by 2

$12 = x, x= 12$

Since you want to find JL and JL = 5x + 2, plug x = 12 into that equation.

$JL = 5* 12 + 2\\JL = 60 + 2\\JL = 62$

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2 years ago

true or false. the absolute value of. number will always be greater than the number itself. justify ur answer

swat32

false have a great day

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2 years ago

A line passes through point A(12,18). A second point on the line has an x-value that is 125% of the x-value of point A and a y-v

gtnhenbr [62]

Answer:

the answer is Y = -1.5x + 36

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2 years ago

Sabrina bought a hoodie at the store when they were having a 25% off sale. If the regular

Rina8888 [55]

Answer:

$12.50

Step-by-step explanation:

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3 years ago

Read 2 more answers

HELP GIVING BRAINIEST

iren [92.7K]

Answer:

m<ACD = $50^{o}$

Step-by-step explanation:

From the question given, ΔACD is a right angled triangle. Then we can apply one of the properties of a triangle to it.

In the triangle ACD:

<ACD + <DAC + <ADC = 180 (sum of angles in a triangle)

<ACD + 40 + 90 = 180

<ACD + 130 = 180

<ACD = 180 - 130

<ACD = $50^{o}$

With the application of the property of the sum of interior angles of a triangle, the measure of <ACD is $50^{o}$ .

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3 years ago