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Tutors Answer Your Questions about Square-cubic-other-roots (FREE)
Question 443238: two investments are made totaling $10,000. In one year these investments
yield $650 in simple interest. Part of the $10,000 in invested at 5 1/2%, and
the rest at 6 3/4%. How much more money is invested at 6 3/4%?
Click here to see answer by stanbon(57984)  |
Question 446329: The wavelenght w in meter per cycle, of musical note is given by w=r/f' where r is the speed of the sound in meters per second and f is the frequency in cycles per second. The speed of sound in air is 344m/second. What is the wavelenght of a note whose frequency in air 30 cycles per second? Round to the nearest tenth of a meter per cycle.
Click here to see answer by rfer(12731) |
Question 448360: Which of the following equations could be used to find the nth term in the arithmetic sequence 14, 8, 2, -4, . . .?
A) an=14-8(n-1)
B) an=14+(n-1)6
C) an=14-6(n-1)
D) an=14-6+8(n-1)
(The n's are supposed to be small and below the a's. Like an exponent but on the bottom.)
Click here to see answer by jim_thompson5910(28717) |
Question 448360: Which of the following equations could be used to find the nth term in the arithmetic sequence 14, 8, 2, -4, . . .?
A) an=14-8(n-1)
B) an=14+(n-1)6
C) an=14-6(n-1)
D) an=14-6+8(n-1)
(The n's are supposed to be small and below the a's. Like an exponent but on the bottom.)
Click here to see answer by stanbon(57984) |
Question 448589: I have a problem here, r^-2 = wC^-1, r=distance, w=weight, C=constant. Apparently we can use 1 mile = 5,280 feet for your conversions. I need to work this out for "r" first then "C" then "w". Can you help me? This is the entire question off the appendix.
Hint for this assignment: Pay attention to the units of measure. You may have to convert from feet to miles in this assignment. You can use 1 mile = 5,280 feet for your conversions.
1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where C is a constant, and r is the distance that the object is from the center of the earth.
Click here to see answer by stanbon(57984) |
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