Solve the problem.Jim has gotten scores of 93 and 85 on his first two tests. What score must he get on his third test to keep an average of 80 or greater?
A. At least 61
B. At least 62
C. At least 89
D. At least 86.0
Answer: B
Mathematics
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Express the number in scientific notation..00000078709
A. 7.8709 x 10-7 B. 7.8709 x 106 C. 7.8709 x 10-6 D. 7.8709 x 107
Mathematics
State whether the statement is true or false.Let A = {x|x ? N and x ? 18} B = {x|x is a continent}North America ? B
A. True B. False
Mathematics
Convert to rectangular coordinates.
A. (-1, 
)
B. (1, 
)
C. (
, -1)
D. (- 
, 1)
Mathematics
Solve the problem.The length of a rectangular flower bed is 7 ft. less than 3 times its width. The area of the bed is 20 ft2. Find the dimensions of the flower bed.
A. 3 ft by 3 ft B. 4 ft by 5 ft C. 4 ft by 2 ft D. 3 ft by 5 ft
Mathematics