Use the given vectors to find the specified scalar.u = -14i + 5j and v = 10i - 8j; Find u ? v.
A. -180
B. -100
C. -40
D. -140
Answer: A
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If a person drives 208 miles, his average speed S, in miles per hour, for the trip depends on the time t, in hours, spent driving. The relationship is
?
.
A. Make a graph of average speed versus time spent driving. Include driving times of up to 5 hours.B. Is the graph concave up or concave down?C. For a 208-mile trip, would an increase in speed make more difference in average velocity for a slow driver or for a fast driver?
What will be an ideal response?
Use an integer or rational number to express the number representing change.On a cloudy day, the water temperature in the swimming pool drops 3 degrees.
A. -3 B. 3
Use the circle graph to answer the question.Last year, one family ate fast food 576 times. The circle graph shows the types of food eaten for the year. Find the number of times fish was eaten.
A. 144 times B. 36 times C. 192 times D. 72 times
Write the sum in summation notation.
+ 
+ 
+ 
+ . . .
A. 
B. 
C. 
D. 