Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation.-2x + 3y -  z = 12  x + 3y - 2z = 15-3x +  y +  z = 5

A. {(3, 8, 6)}
B. {(-3, 8, 6)}
C. ?
D. {(3, 6, 8)}


Answer: A

Mathematics

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Find the missing parts of the triangle.C = 120.75°b = 4.70a = 12.20

A. c = 15.15, A = 43.78°, B = 15.47° B. No triangle satisfies the given conditions. C. c = 17.35, A = 41.62°, B = 17.62° D. c = 16.65, A = 45.62°, B = 13.62°

Mathematics

Productivity and yield of cultivated crops are often reduced by insect pests. The following graph shows the relationship between the yield of a certain crop, f(x), as a function of the density of aphids x. (Aphids are small insects that suck plant juices.) Here, f(x) is measured in kilograms/ 4,000 square meters, and x is measured in hundreds of aphids/bean stem. By computing the slopes of the respective tangent lines, estimate the rate of change of the crop yield with respect to the density of aphids when that density is 200 aphids/bean stem and when it is 800 aphids/bean stem.

?

?

A. - 0.5 when it is 200 aphids/bean stem,- 1.333 when it is 800 aphids/bean stem
B. 00.5 when it is 200 aphids/bean stem,01.333 when it is 800 aphids/bean stem
C. 02 when it is 200 aphids/bean stem,00.75 when it is 800 aphids/bean stem
D. - 2 when it is 200 aphids/bean stem,- 0.75 when it is 800 aphids/bean stem

Mathematics

Determine whether the given points are on the graph of the equation.y = 3x2; (4, 36)

A. Yes B. No

Mathematics

Solve the problem.When two lenses are placed next to each other, their combined focal length (a measurement that can be negative or positive) is described by the equation f = .If f1 = 0.001, what are the asymptotes of this function?

What will be an ideal response?

Mathematics