Solve.The sum of two numbers is 15, and the sum of their squares is 113. Find the numbers.
A. 7 and 8
B. 8 and 7
C. 9 and 6
D. 10 and 5
Answer: B
Mathematics
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Solve.A pair of belted pulleys have diameters of 18 in. and 12 in. If the smaller pulley turns at 825 rpm, how fast will the larger pulley turn?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Convert 
to Hexidecimal.
a. 53 b. 100 c. A2 d. 10B e. 2F
Mathematics
Show that the equation is not an identity by finding a value of x for which both sides are defined but not equal.cos x - cos x sinx = cos3 x
A. 
B. ?
C. 0
D. 
Mathematics
Perform the indicated operations. Write answers using only positive exponents. Assume variables represent positive real numbers.7a3/4 ? 7a-23/4
A. 
B. 
C. 
D. 7a-20
Mathematics