This sequence represents the diameters of circles used to create an art project: 2.5 cm, 3.1 cm, 3.7 cm, 4.3 cm
Let fin) represent diameter in centimeters and n the term number in the sequence. Which equation represents the
sequence of diameters?
f(n) = 0.6n + 1.9
fin) = 0.6n + 2.5
f(n + 1) = f(n) +1.9
O fin + 1) = f(n)-0.6

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

5

step-by-step explanation: