Solve the problem.Jim has gotten scores of 69 and 66 on his first two tests. What score must he get on his third test to keep an average of 70 or better?
A. at least 68
B. at least 67.5
C. at least 75
D. at least 73
Answer: C
Mathematics
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Use a calculator to approximate the square root to three decimal places. Check to see that the approximation is reasonable.
A. 3.321 B. 3.311 C. 3.289 D. 3.303
Mathematics
Convert the improper fraction to a mixed number.
A. 
B. 288
C. 57
D. 288
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Factor.y2 + 10y + 21
A. (y - 3)(y - 7) B. (y + 21)(y + 1) C. (y + 3)(y + 7) D. (y - 3)(y + 7)
Mathematics
Verify that the equation is an identity.
= cot ? - tan ?
What will be an ideal response?
Mathematics