The luminosity, L, of a star is determined by the formula L = 4db, where d represents the distance of the star in meters and b represents the brightness of the star in watts per meter squared. Which of the following equations determines the distance of a star in terms of its luminosity and
brightness?
A
L
da
V 4b
B
d=LV4b
с
[16 b
d=
D
daaralan

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.