Find the least common multiple of the given number by the method of intersection of sets of multiples.84 and 126
A. 504
B. 252
C. 42
D. 756
Answer: B
Mathematics
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Solve the problem.Find the half-life of the radioactive element radium, assuming that its decay constant is 
with time measured in years.
A. 2308 years B. 800 years C. 1600 years D. 1400 years
Mathematics
Solve the logarithmic equation.log4 (x + 4) + log4 (x - 4) = 1
A. 2
B. 4
C. 
D. 20
Mathematics
Solve the problem.Let x represent the number of pounds of apples sold at $1.38 per pound, and let y represent the total price paid for the apples. Write an equation for this situation. Then give the ordered pair with an x-value of 2 associated with this equation.
A. y = 1.38x; (2, 2.76) B. y = 1.38 + x; (2, 3.38) C. x = 1.38 + y; (2, 0.62) D. x = 1.38y; (2, 1.45)
Mathematics
Subtract.79,777
A. 35,533 B. 35,525 C. 39,533 D. 35,445
Mathematics