In ΔABC, what is the value of cos B?

Which data set has a greater spread? why? set a: {38, 12, 23, 48, 55, 16, 18} set b: {44, 13, 24, 12, 56} has a greater spread because .

Bob solved the inequality problem below incorrectly. explain his error and redo the problem showing the correct answer. −2x + 5 < 17 −2x + 5-5 < 17-5 -2x/-2 < 12/-2 x < -6

On the scale drawing of a car, the length from bumper to bumper is 6 inches. the car's actual length, from bumper to bumper, is 16 feet. on the scale drawing, the height of a window is 3/4 inch. what is the actual height of this window? explain or show your reasoning.