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azamat
3 years ago
7

Francisco took $20.00 to the mall. He found a DVD he wanted on sale for 18.50. The sales tax rate in his state is 8%. DOe he hav

e enough money to buy the DVD, including tax?
A. No he need an addional $1.48
B. Yes, and he has $0.02 left over.
C. No, he need an additional $13.30.
D. Yes, and he has $1.50 left over.
Mathematics
1 answer:
vredina [299]3 years ago
3 0
So times 18.50 by .08 to find the 8% tax which is 1.48. then add that to the original 18.50 totals $19.98.

So b is your answer
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Answer:

-1

Step-by-step explanation:

We need to simplify the given expression . The given expression is ,

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Here we can see that the power of the both exponent is same that is (2n+1) . Recall the property of exponents ,

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\rm\implies ( 2 \sqrt6 +5)^{2n-1} ( 2\sqrt6 - 5)^{2n-1}

This can be written as ,

\rm\implies\{( 2 \sqrt6 +5) ( 2\sqrt6 - 5)\}^{2n-1}

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Subtracting the numbers inside the brackets ,

\rm\implies (-1)^{2n - 1 }

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\rm\implies\boxed{\quad \red{ -1 }\quad }

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Given:

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