Solve the problem.For the study described below, identify the population.A manufacturer of light bulbs wants to determine the average lifetime of its 75-watt light bulbs. Among 120 randomly selected 75-watt light bulbs, the average lifetime was 1007 hours.
A. All 75-watt light bulbs manufactured by the company
B. The 120 randomly selected 75-watt light bulbs
C. All 75-watt light bulbs
D. The average lifetime of all 75-watt light bulbs manufactured by the company
Answer: A
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Write the algebraic expression described. Simplify if possible.The sum of the angles of a triangle is 180°. If one angle of a triangle measures x° and a second angle measures , express the measure of the third angle in terms of x.
A. (160 + 3x)° B. (160 - 2x)° C. (200 - 3x)° D. (160 - 3x)°
Sketch the graph of the equation.y = -2x
A.
B.
C.
D.
Solve the absolute value equation or indicate that the equation has no solution. = 6
A. {-1} B. ? C. {11, 1} D. {-11, 1}
A vertical pole 29 feet tall stands on a hillside that makes an angle of 20° with the horizontal. Determine the approximate length of cable that would be needed to reach from the top of the pole to a point 65 feet downhill from the base of the pole. Round your answer to two decimal places. ?
A. 70.59 feet B. 61.45 feet C. 84.70 feet D. 75.29 feet E. 79.72 feet