Which of the following types of extensions can help eliminate down-time and encourage metacognitive activity?
a. Having students write their own, related problems to pose to others
b. Having students prepare to present their solution to the rest of the class
c. Asking students if they can come up with another way to solve the given problem
d. All of the above
Ans: d
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Multiply.2x(8x2 - 5xy + 4y2)
A. 16x3 - 10xy + 8y2 B. 16x3y - 5xy + 4y2 C. 16x3 + 10x2y + 8xy2 D. 16x3 - 10x2y + 8xy2
Solve the problem.Two cars leave an intersection. One car travels north; the other east. When the car traveling north had gone 6 mi, the distance between the cars was 2 mi more than the distance traveled by the car heading east. How far had the east bound car traveled?
A. 10 mi B. 6 mi C. 12 mi D. 8 mi
Find the sum or difference, and write in lowest terms, if necessary.-
+ 
+ 
A. - 
B. - 
C. - 
D. - 
Graph the line passing through the given point and having the given slope.Through (6, 0), m = - 
A. 
B. 
C. 
D. 