Solve.The sum of the squares of the digits of a positive two-digit number is 61, and the tens digit is 1 more than the units digit. Find the number.
A. 45
B. 65
C. 56
D. 54
Answer: B
Mathematics
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Evaluate the integral. The integral may not require integration by parts.
dx
A. 3 ln
+ C
B. 
ln
+ C
C. x4 sec x4 + C
D. 
ln
+ C
Mathematics
Calculate the work done by the force F along the path C.F = xyi + 4j + 8xk; C: r(t) = cos 7ti + sin 7tj + tk, 0 ? t ? 
A. W = 
B. W = 
C. W = 0
D. W = 
Mathematics
Provide an appropriate response.Divide: 3430 ÷ 70.
A. 49 B. 49 R 61 C. 50 R 60 D. 50
Mathematics
Solve the problem.Suppose A0dollars is deposited in a savings account paying 6.5% interest compounded continuously. After x years the account will contain 
dollars. If $270 is initially deposited, after how many years (to the nearest tenth) would the account have $2490 in it?
A. 1.4 B. -34.2 C. 34.2 D. 120.3
Mathematics