Solve the formula for the given variable.I = 
for r
A. r = 
B. r = IR(In - E)
C. r = 
D. r = 
Answer: A
Mathematics
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Subtract and write the result in lowest terms.
- 
A. 
B. 
C. 
D. 
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Solve the problem.The sum of the squares of the digits of a positive two-digit number is 20, and the tens digit is 2 more than the units digit. Find the number.
A. 35 B. 42 C. 24 D. 53
Mathematics
Find the requested quantity. Write the answer in simplest form.Find the perimeter.
A. 8
feet
B. 34 feet
C. 
feet
D. 72
feet
Mathematics
Find 
at time 
for the space curve 
.
?
A. 81 B. 0 C. 2 D. 4 E. 9
Mathematics