# PLEASE HELP WILL GIVE BRAINLIIEST 20 POINTS 6TH GRADE ASAP PLEASE Which of the sets of ordered pairs represents a function? A = {(–5, 5), (–2, 2), (2, –2), (5, –5)} B = {(4, 2), (3, –2), (9, 4), (11, –3)} (4 points) Only A Only B Both A and B Neither A nor B

Both A and B

Step-by-step explanation:

For functions you are just trying to make sure all the x's are different.

So let's look at A:  The x's there are all different so it is a function

Now let's look at B: The x's there are all different so it is a function.

Both A and B

## Related Questions

Factor completely: 81x^4 – 1 A. (9x + 1)(9x – 1)
B. (9x^2 + 1)(9x^2 – 1)
C. (3x^2 + 1)^3(3x – 1)
D. (9x^2 + 1)(3x + 1)(3x – 1)

Using this: a²-b²=(a+b)(a-b)

81x^4-1=

(9x²)²-1=

(9x²-1)(9x²+1)=      (in the bold half we use the formula again)

(3x+1)(3x-1)(9x²+1)

3is what percent of 8

3 is what percent out of 8
Can also be written as 3/8
To turn a fraction into a percentage, divide the numerator by the denominator and them multiply by 100
3/8 = 0.375
0.375 x 100 = 37.5
37.5%
3 is what percent of 8?

3/8

Decimal:-

3 ÷ 8 = 0.375

percentage:-

0.375 × 100 = 37.5
37.5%

3 is 37.5% of 8.

The product of 6 and a number.

"·" product

n - a number

Answer: 6 · n = 6n

Two numbers add to 251 and the second is 41 bigger then the first. what are the two numbers?

146 dan 105

Further explanation

Given:

Two numbers add to 251 and the second is 41 bigger than the first.

Question:

What are the two numbers?

The Process:

Let the first number we call x, and the second number is y.

Two numbers add to 251, We arrange it as Equation-1:

The second is 41 bigger than the first. We arrange it as Equation-2:

Let us solve the two equations above by eliminating the same variable. With the addition process, it appears that the variable y will be eliminated.

x + y = 251

x - y = 41

-------------- ( + )

2x = 292

Divide by two on both sides.

x = 146

The final step is to determine the variable y with the substitution of the value x into one of the two equations above. We choose Equation-1.

x = 146 → 146 + y = 251

y = 251 - 146

y = 105.

Thus, the two numbers are 146 and 105.