Mathematics, 23.07.2019 23:00 daisymae1172
Aperson whose height is 6 feet is walking away from the base of a streetlight along a straight path at a rate of 4 feet per second. if the height of a streetlight is 15 feet, what is the rate at which a person’s shadow is lengthening?
Answers: 1
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Mathematics, 22.06.2019 01:00
The dance committee of pine bluff middle school earns $72 from a bake sale and will earn $4 for each ticket they sell to the spring fling dance. the dance will cost $400 write an inequality to determine the number, t of tickets the committee could sell to have money left over after they pay for this year's dance. what is the solution set of the inequality?
Answers: 2
Mathematics, 22.06.2019 04:30
Me. brady is putting trim around the edge of circular merry-go-round that has diameter of 15 feet. how much trim does he need to buy to the nearest tenth
Answers: 1
Aperson whose height is 6 feet is walking away from the base of a streetlight along a straight path...
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