Which property is used to find proportions?
a. multiplicative inverse property
b. means-extremes product property
c. identity property of division
d. commutative property of addition

Means-extremes property

Step-by-step explanation: A proportion is an equation that states two ratios are equal. For example, is an example of a proportion.

In the given proportion, a and d are called extremes and b and c are called means. The first property that I will be talking about states that the product of the extremes equals the product of the means.

This idea is called the means-extremes property.

So if , we know that ad = bc by the means-extremes property.

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice