Math

Which are the solutions to 8cos^2 theta-3cos theta=0, 0 degrees is less than or equal to theta which is less than or equal to 180 degrees ? Select all that apply
a)0.0 degrees
b)22.0 degrees
c)52.0 degrees**
d)68.0 degrees
e)90.0 degrees**
I’m pretty sure e is right but I’m not sure about c.

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  1. Unknown
    I'm not going to do your complet homework.

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  2. I agree with Bosnian. You have now posted 4 consecutive questions without showing
    any effort on your part. Nor did you indicate where your difficulties lie.
    So ...... your turn.

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  3. I’ve given the answers I think it is I just have no idea if I’m doing it right. Every time I try to use my calculator for this question specifically, it doesn’t give an answer for the other 4 answers. Sorry I’ve posted so many but there are over 20 questions for my homework and I’ve only asked for 4.

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  4. and your other choice is incorrect, hope you weren't just guessing,
    hoping one of us would do it for you.

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  5. 8 x^2 - 3 x = 0
    x = 0 or x = 3/8
    e is right but how did you get c ?

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  6. Maybe your calculator does not do significant figures LOL

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  7. if anyone else is looking for this answer, 90.0 was correct. the other correct answer would be 68.0.

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