M is proportional to the cube of r. when r=3m, m=216.when r=5 find the value of m

The value of m is 1000 for r=5

Step-by-step explanation:

Given that m is proportional to the cube of r

It can be written as:

When the proportionality symbol is removed a proportionality constant is introduced in the equation.

Let k be the proportionality constant

Given

r=3,m=216

Putting the values

The equation will now become

Putting r = 5

Hence,

The value of m is 1000 for r=5

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

22 dimes and 9 nickels

step-by-step explanation: