3 years ago

Suppose A = {2,5,7,9,13, 25, 26).(a) Find n(A).n(A) =(b) T/F: 7. A

Mathematics

1 answer:

charle [14.2K]3 years ago

6 0

Answer:

a) n (A) = 7

Step-by-step explanation:

Here, set A = {2,5,7,9,13, 25, 26)

Noe, for any set A,

n (A) is defined as he total number of elements in the set A.

or, n(A) = CARNALITY OF SET A

Here,the number of elements in set A = 7

⇒ n (A) = 7

You might be interested in

If x/y = -3, then find x²/y² + y²/x².

sladkih [1.3K]

Answer:

9.11

Step-by-step explanation:

Given that,

$\dfrac{x}{y}=-3$

We need to find the value of $\dfrac{x^2}{y^2}+\dfrac{y^2}{x^2}$

The value of $\dfrac{y}{x}=\dfrac{-1}{3}$

So,

$\dfrac{x^2}{y^2}+\dfrac{y^2}{x^2}=(\dfrac{x}{y})^2+(\dfrac{y}{x})^2\\\\=(-3)^2+(\dfrac{-1}{3})^2\\\\=9+\dfrac{1}{9}\\\\=9.11$

So, the required answer is equal to 9.11.

6 0

3 years ago

I am looking for the formula for this. Yuan needs to take a taxi to get to the movies. The taxi charges $3.50 for the first mile

SVEN [57.7K]

9.75-3.50=2.50x
6.25=2.50x
6.25÷2.5=2.50x÷2.5
2.5=x

6 0

3 years ago

What decimals is equivalent to 40/100?

yulyashka [42]

The decimal for 40/100 is equivalent to .04

7 0

3 years ago

PLEASE HELP!!! THIS IS 25 POINTS!! ILL MARK BRAINLIEST PLEASE HELP!

ki77a [65]

I don’t understand it :(

5 0

3 years ago

When plotting points on the coordinate plane

WARRIOR [948]

Answer:

(6,0)

Step-by-step explanation:

4 0

3 years ago

Suppose A = {2,5,7,9,13, 25, 26).(a) Find n(A).n(A) =(b) T/F: 7. A​

Suppose A = {2,5,7,9,13, 25, 26).(a) Find n(A).n(A) =(b) T/F: 7. A