Solve by the substitution method. x + 7y = 144x + 8y = 16
A. (0, 2)
B. No solution
C. (1, 1)
D. (-2, 0)
Answer: A
Mathematics
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Find the domain of the logarithmic function.g(x) = log7(4 - 4x)
A. (-?, 4)
B. (7, ?)
C. 
D. 
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The amount A, in grams, of a radioactive substance remaining after t years is given by the following table. Use an exponential model for these data to determine the half-life of the radioactive substance. That is, determine how long it takes for half of the substance to decay. Round your answer to two decimal places. t 3 4 5 6 A 157.36 154.21 151.13 148.11?
A. 25.46 years B. 34.50 years C. 34.31 years D. 25.00 years
Mathematics
Multiply.(x + 
)(x - 
)
A. x2 - 
B. x2 + 16x - 6
C. x2 - 16x - 6
D. x2 - 16
Mathematics
Divide using synthetic division.
A. x - 6 B. 6 - x C. x + 5 D. x + 6
Mathematics