Ask question

Ask question

All categories

OverLord2011 [107]

3 years ago

15

Out of the 12 girls who tried out for the softball team, 10 will be chosen for the team. Find the number of different 10-person

teams

1 answer:

olga nikolaevna [1]3 years ago

8 0

Answer:

The answer is 66 ways .

Step-by-step explanation:

You have to use <u>Combination</u> because it says choosing 10 out of 12 as the position is not important :

12C10 = 66 ways of arrangements

You might be interested in

If A = (1,2,3,4,5), then the number of proper subsets of A is-

Mandarinka [93]

Answer: One of them is the set {1,2,3,4,5,6}itself; one is the empty set, containing no elements. “Proper subset of a set ” usually denotes a subset in which at least one element of the original set is missing; so one of the subsets - the original set iitself - is not a proper subset. Therefore the answer is 63.

Step-by-step explanation:

8 0

3 years ago

The notation f:S→T denotes that f is a function, also called a map , defined on all of a set S and whose outputs lie in a set T

AnnyKZ [126]

Answer:

There are many. Two examples are

$f(x) = x, \\f(x) = x^3$

Step-by-step explanation:

There are many examples. The simplest is

1 -

$f(x) = x$

It is trivial that

$\text{if \,\,\,\,} f(x) = f(y) \,\,\,\,\,\text{then} \,\,\,\,\, x=y$

2 -

$f(x) = x^3$

That function is injective as well.

$\text{if \,\,\,\,} x^3 = y^3 \,\,\,\,\,\text{then} \,\,\,\,\, x=y$

An example of a function that is NOT injective is

$f(x) = x^2$

Notice that

$f(-2) = (-2)^2 = 2^2 = 4$

4 0

3 years ago

Marta is buying a violin that costs $1,300. She makes a down payment of $500 and will pay the balance in 12 equal payments.

elixir [45]

Answer:

12 payemst of 66.66

Step-by-step explanation:

1300 - 500 = 800/ 12 = 66.66

7 0

3 years ago

What are the vertices of the hyperbola whose equation is (y+6)^2/81 - (x+8)^2/49 = 1

olchik [2.2K]

Answer:

(-8,3) and (-8, -15)

Step-by-step explanation:

3 0

3 years ago

N January, the price of a dozen eggs at a grocery store was $0.89. By June, the price had increased to $0.99. What was the perce

Anika [276]

11.236% increase
hope this helped

3 0

3 years ago