This follows directly from the double angle identity for cosine and the Pythagorean identity:
So we have
Factor each polynomial. 16r^2 - 169
1 answer:
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Answer
Find out the how much did kerry pay in tax .
To proof
As given
Kerry bought a bag of dog food for $37.99.
If sales tax is 7.6%
7.6 % is written in the decimal form
= 0.076
7.6 % of the $37.99 = 0.076 ×37.99
= 2.88724
= $2.89 ( approx)
Kerry pay in the sales tax be $2.89
Hence proved
A. Just write an expression:
That's your answer.
B. Simplify the above expression to get:
So your answer would be, "He had $132.63 left in his account."
That's your answer.
B. Simplify the above expression to get:
So your answer would be, "He had $132.63 left in his account."