Solve by the substitution method.8x + 17 = 7y5x - 3y = -12
A. (7, -12)
B. (-1, -3)
C. (-4, 0)
D. (-3, -1)
Answer: D
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Evaluate the integral.
A. 
x2e2x - 
xe2x + 
e2x + C
B. 
x2e2x - xe2x + 
e2x + C
C. 
x2e2x - 
xe2x + C
D. 
x2e2x - 
xe2x + 
e2x + C
Solve the problem.A fossilized leaf contains 5% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as the half-life of carbon 14.
A. 36,725 years old B. 12,979 years old C. 414 years old D. 24,159 years old
Refer to the figures and recursive rules below to answer the following question(s).
What is the area of the figure obtained when we recursively apply Rule E infinitely many times, given that the area of the starting equilateral triangle is 10?
A. 0 B. infinite C. 4 D. 16 E. none of these
Write the system
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as a matrix equation AX = B, where A is the coefficient matrix of the system, X is a column matrix of variables, and B is the column matrix of constants. Multiply each side of the equation on the left by the matrix inverse of A to obtain an equivalent system of equations and solve it.
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Please enter your answer as an ordered pair in the form (x, y).
What will be an ideal response?