Find u ? v.u = i + 2j, v = 5i - j
A. -3
B. 0
C. 3
D. 7
Answer: C
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Calculate the derivative of the function. Then find the value of the derivative as specified.
t = -4 if s = t2 - t
A. 
= 2 - t; 
t = -4
= 6
B. 
= 2t - 1; 
t = -4
= -9
C. 
= 2t + 1; 
t = -4
= -7
D. 
= t - 1; 
t = -4
= -5
Solve.Three squares with areas of 125 cm2, 80 cm2, and 45 cm2 are displayed on a computer screen. What is the sum (in radical form) of the perimeter of these squares?
A. 12
cm
B. 40
cm
C. 24
cm
D. 48
cm
Make the following conversion in the metric system.0.38 kilometers to centimeters
A. 38,000 cm B. 3.8 cm C. 380 cm D. 3800 cm
Solve the problem.If x dollars is deposited every four weeks (13 times a year) into an account paying an annual interest rate r, expressed in decimal form, then the amount An in the account after n years can be approximated by the formula 
If $30 is deposited every four weeks into an account paying 4% interest, approximate the amount in the account after 19 years.
A. $23,985.00 B. $11,073.88 C. $369.13 D. $5195.59