Answers by William Pursell
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Answers by William Pursell

Answers by William Pursell
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What is the difference between a radio telescope, x-ray telescope, and optical telescope (both reflecting and refracting)
answered Jul 28, 2018
1 vote
137k views
The present value of the money in your savings account is $420 and you are receiving 3% annual interest compond monthy. What is the future value in two months
answered Jun 29, 2018
2 votes
137k views
a movie theater has been charging $10 per person and selling about 500 tickets on a typical weeknight. After surveying their customers, the theater estimates that for every 50 cents that they lower the
answered Apr 22, 2018
3 votes
229k views
Alyssa and Caleb drove 210 mikes to the beach in separate cars. They left at the same time. They both drove at a constant speed. Alyssa drove 105 miles in 3.5 hours. Caleb drove 168 miles in 4 hours. Who
answered Mar 3, 2018
0 votes
32.5k views
Why does air pressure decrease when you go higher
answered Feb 16, 2018
2 votes
187k views
Y is a number such that 6y = 12
answered Dec 28, 2017
6 votes
219k views
The line of symmetry for the quadratic equation y = ax2 + 8x - 3 is x = 4. What is the value of "a"? -2 -1 1
answered Feb 25, 2016
7 votes
22.4k views
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