Solve the equation.7x + 19 - 5x = 4x + 3
A. x = 8
B. x = -8
C. x = -16
D. x = 16
Answer: A
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Find the intersection.8x - 4y - 6z = 6, -6x - 4y + 3z = 7
A. x = -36t - 
, y = 12t - 
, z = -56t
B. x = 2016t - 4, y = -672t - 92, z = 56t
C. x = 36t + 4, y = -12t + 92, z = 56t
D. x = -36t - 4, y = 12t + 92, z = 56t
Skeletal remains of the so-called "Pittsburgh Man", unearthed in Pennsylvania, had lost 74% of the carbon 14 they originally contained. Determine the approximate age of the bones. Round your answer to the nearest year. Hint: the decay constant k for carbon 14 is equal to 0.00012. ? __________ years
Fill in the blank(s) with the appropriate word(s).
Solve the problem.A theater has 26 rows with 22 seats in the first row, 27 in the second row, 32 in the third row, and so forth. How many seats are in the theater?
A. 2197 seats B. 4524 seats C. 2262 seats D. 4394 seats
Use integration by parts to find the integral. Round the answer to two decimal places if necessary.
A. -2.27 B. -1.33 C. -0.94 D. 0.39