Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (anonymous):

Use a calculator to find the given value. Round to four decimal places. cos 21degrees

OpenStudy (mertsj):

Do you have a calculator?

OpenStudy (anonymous):

yes

OpenStudy (mertsj):

Then use it to find the cos of 21 degrees.

OpenStudy (anonymous):

well i dont see how to do it these are the answers (A. 1.0711) (B. 0.9336) (C. 0.3839) (D. 0.3584)

OpenStudy (anonymous):

opps thats the wrong question

OpenStudy (mertsj):

The answer is .9336

OpenStudy (mertsj):

for some calculators, you have to type 21 and then cos. For others your type cos 21. And make sure your calculator is set in the degree mode and not radian mode.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!