Consider this circle and recall the formulas for circumference and area:

C = 20

А = х2

The circle is dilated by a scale factor of What can

be concluded of the effect on the circle? Check all that

apply.

The new radius is 6 inches.

The new circumference is 12 7 inches.

Thehrew area is 127 in.2.

The new area is the original area times the square

CI

The new area is the original area times the square

of 3

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

answer: x=60

step-by-step explanation:

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: