If cos0=-4/7, what are the values of sin0 and tan0?

let's first off notice something, the hypotenuse is never negative, since it's just a radius unit, so if the cosine is -(4/7), the hypotenuse of 7, is not the negative one, is the 4 above, so is really (-4)/7 in the fraction.

step-by-step explanation:

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yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;