Find the nth term and the indicated term of the arithmetic sequence {an} whose initial term, a, and common difference, d, are given.a1 = 6; d = -7an = ?; a15 = ?
A. an = 6 - 7n; a15 = -92
B. an = 13 - 7n; a15 = -92
C. an = 13 - 7n; a15 = -29
D. an = 13 + 7n; a15 = -92
Answer: B
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Solve the problem.The resistance R produced by wiring resistors of R1, R2, and R3 ohms in parallel can be calculated from the formula 
If R1, R2, and R3 are measured to be 7 ohms, 10 ohms, and 6 ohms respectively, and if these measurements are accurate to within 0.05 ohms, estimate the maximum possible error in computing R.
A. 0.017 B. 0.010 C. 0.014 D. 0.021
Solve the equation.
= -6
A. 
B. ?
C. {180}
D. 
Solve the problem.A triangle has a base of length 3x + 1 and a height of x + 6 and has an area of 45 square units. Find the base and height. (A = 
bh)
A. base = 3 units; height = 30 units B. base = 10 units; height = 9 units C. base = 3 units; height = 15 units D. base = 9 units; height = 5 units
Write the polynomial as the product of linear and quadratic factors that are irreducible over the reals. ? f(x) = x4 + 42x2 - 343 ?
A. 
B. 
C. 
D. 
E. 