Solve the equation. Identify the equation as an identity, an inconsistent equation, or a conditional equation.5x + 2x = -6x
A. Conditional, {13}
B. Identity, {all real numbers}
C. Conditional, {0}
D. Inconsistent, ?
Answer: C
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Use the appropriate Taylor polynomial of degree 3 at x = 0 to approximate the quantity. Round the answer to four decimal places.e-0.02
A. 0.9796 B. 0.9806 C. 0.9802 D. 0.9809
Solve the problem.A swimming pool is 23 m long and 11 m wide, with a bottom that slopes uniformly from a depth of 
at one end to a depth of 2 m at the other end (see figure). Assuming the pool is full, how much work is required to pump the water to a level 0.1 m above the top of the pool? Round to one decimal place when appropriate.
A. 17,149,183.3 J B. 39,298,490 J C. 1,487,640 J D. 18,636,823.3 J
Solve the problem.Assume that the elevation E, in feet, of a sag in a proposed route is given by 
where x represents the horizontal distance in feet along the proposed route and 0 ? x ? 5000. For what x-values is the elevation 1300 feet or more? Round your answer to the nearest foot.
A. x < 893 ft or x > 5959 ft B. x < 893 ft or x > 5969 ft C. x < 883 ft or x > 5959 ft D. x < 883 ft or x > 5969 ft
Solve the system of equations (only real solutions) by the elimination method. Check your solutions.
A. {(2, 0), (-2, 0), (2, -6), (-2, 6)} B. {(2, 0), (-2, 0)} C. {(0, 2), (0, -2), (2, -6), (-2, 6)} D. {(2, -6), (-2, 6)}