Write an equation to represent how the diameter and radius are related.

Mathematics

1 answer:

jarptica [38.1K]3 years ago

5 0

Answer:

d/2=r

Step-by-step explanation:

radius is half the diameter

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What are the extremes of the following proportion?

satela [25.4K]

The correct answer for the question that is being presented above is this one: "D. 3 and 60." The means of the proportion is 15 and 12. The means-extremes property of proportions allows you to cross multiply, taking the product of the means and setting them equal to the product of the extremes.

3 0

3 years ago

A company has 7 male and 9 female employees, and needs to nominate 2 men and 2 women for the company bowling team. How many diff

lys-0071 [83]

Answer:

The team can be formed in 756 different ways

Step-by-step explanation:

This is a combination problem since we are to select a set of people from a group. Combination has to do with selection.

for example, if r number of object is to be selected from a pool of n objects, this can be done in nCr number of ways.

$nCr = \frac{n!}{(n-r)!r!}$

Now If A company has 7 male and 9 female employees, and needs to nominate 2 men and 2 women for the company bowling team, then this can be done in the following way;

$7C2 * 9C2$

$7C2 = \frac{7!}{5!2!} \\= \frac{7*6*5!}{5!*2} \\= 7*3\\= 21ways\\\\similarly;\\\\9C2 = \frac{9!}{7!2!}\\9C2= \frac{9*8*7!}{7!*2} \\9C2 = 9*4\\9C2 = 36$