- At any distance x from the source of light,the intensity of illumination varies directlyas the intensity of the source and inverselyas the square of x. Suppose that there is alight at A, and another at B, the one at Bhaving an intensity 8 times that of A. Thedistance AB is 4 m. At what point from Aon the line AB will the intensity ofillumination be least?A.B.C.D.2.15 m1.33 m1.50 m1.92 mA wall "h" meters high is 2 m away fromthe building. The shortest ladder that canreach the building with one end resting onthe ground outside the wall is 6 m. Howhigh is the wall in meters?A. 2.34B. 2.24C. 2.44D. 2.14The coordinates (x,y) in feet of a movingparticle P are given by x = cost-1 and y=2 sin t-+ 1, where t is the time in seconds.At what extreme rates in fps is P movingalong the curve?A. 3 and 2B. 3 and 1C. 2 and 0.5D. 2 and 1

At any distance x from the source of light, the intensity of illumination varies directly as the intensity of the source and inversely as the square of x. Suppose that there is a light at A, and another at B, the one at B having an intensity 8 times that of A. The distance AB is 4 m. At what point from A on the line AB will the intensity of illumination be least? A. B. C. D. 2.15 m 1.33 m 1.50 m 1.92 m

At any distance x from the source of light, the intensity of illumination varies directly as the intensity of the source and inversely as the square of x. Suppose that there is a light at A, and another at B, the one at B having an intensity 8 times that of A. The distance AB is 4 m. At what point from A on the line AB will the intensity of illumination be least? A. B. C. D. 2.15 m 1.33 m 1.50 m 1.92 m

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 73E

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