> ANSWER 20 INTENSITY OF ILLUMINATION The intensity of illumination I from a source of light varies inversely as the square of the distance d from the source. (a) Express I in terms of d and a constant of variation k. (b) A searchlight has an intensity of 1,000,000 candlepower at a distance of 50 feet. Find the value of k in part (a). (c) Sketch a graph of the relationship between I and d for d > 0. (d) Approximate the intensity of the searchlight in part (b) at a distance of 1 mile.

Q: 1/3+2/9

A: Given 1/3 + 2/9

Q: (a-5)

A:

Q: (a-5)

A: Solve the (a-5)6

Q: 2/5+4/8

A: We have to find the sum

Q: 4n – 1

A:

Q: -2- 4- 3 10

A:

Q: 7/2 + 3 4/6

A:

Q: 22n+1 3n+1 2.

A:

Q: (a-5)

A: Given:            (a−5)6

Q: Let Mbe as in Equation (3.14) and let X = [1, 0, ½]¹. Show that the entries of Y=MX sum to 1.

A:

Q: -8 - 12

A: Given problem is

Q: 3/8+5/24

A: The given expression is 3/8 + 5/24.Simplify the given expression as follows.

Q: Match the possible graph for the function f with the specified properties: (i) the domain of ƒ is…

A: The function has properties,(i) the domain of f is -5,5(ii) f-5=f0=f5=5(iii)…

Q: -3 -10

A: The given equation is:  -3   2÷-10    7

Q: i 15Y4 + 32X+ 23x?+ 25X-3

A:

Q: 3. Graphically Subtract (-1+i) from (3+2i)

A: If we have to subtract a vector b from another vector a, graphically, then we actually are adding…

Q: 10. 3 + Зу- 1 + у

A: Given that                     3+3y-1+y Now we simplify this.                           3+3y-1+y…

Q: 4 1/2 + 3 2/3=

A: Given,

Q: (a-5)

A: We have to find the value of: a-56

Q: 1 3 8.

A:

Q: 8y3 + 216

A:

Q: Find the interpolating polynomial of the following points or functions using Newton's interpolation…

A: Newton's divided differences interpolation

Q: -3 -2 -1 1 2 0000000 3.

A:

Q: 2/5 +7/12

A: Please see the answer below.

Q: (a-5)

A: Given :- (a–5)6 Using Formula :- (a–b)3 = a3–b3–3a2b+3ab2

Q: nvert

A:

Q: -5 4 -2 -7 -8 2.

A: