Use the dot product to find the magnitude of u.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Perform the indicated operation and simplify.
+ 
A. x + 4
B. x - 4
C. 
D. x - 2
Mathematics
Find the area of a circle with diameter 22.8 m. Round to the nearest tenth of a meter.
(a) 35.8 m² (b) 71.6 m² (c) 408.1 m² (d) 22.8 m²
Mathematics
Solve the application problem.The graph shows the height as a function of time of a ball thrown straight up from an initial height of 112 feet. What is the height of the ball after 2.5 seconds? 
A. approximately 250 feet B. approximately 260 feet C. approximately 200 feet D. approximately 225 feet
Mathematics
Solve the problem.A stockbroker sold 65 shares of stock for $46.66 each. What was the total amount of the sale?
A. $3033.00 B. $3032.90 C. $3033.01 D. $3032.80
Mathematics