Evaluate.62 - 2(3) + 50 ÷ 5
A. 10
B. 16
C. 40
D. 58
Answer: C
Mathematics
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Find the indicated value.Find m if log m = -24.63, where m is the mass in kilograms of a certain atom.
A. m = 2.01 × 10-11 kg B. m = 2.34 × 10-25 kg C. m = -2.46 × 102 kg D. m = 4.27 × 1024 kg
Mathematics
Solve the problem.For what numbers x, 0 ? x ? 2?, does cos x = -1?
A. 
, 
B. ?
C. 
D. none
Mathematics
Identify the numbers from the given list that belong to the indicated set. 12, 
, -22, 0, 
, - 
, 1.8, 
Whole numbers
A. 12, -22, 0
B. 12, 0, 
C. 12, -22, 0, 
D. 12, 0
Mathematics
Solve the system of equations. x + y + z = -9 x - y + 4z = -9 2x + 2y + 2z = -13
A. {(-4, -3, -2)} B. {(-2, -4, -3)} C. {(-2, -3, -4)} D. ?
Mathematics