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3 years ago

Which ordered pair could you remove from the relation {(-1,0), (1,3), (2,2), (2,3), (3,1)} so that it becomes a function?

Mathematics

1 answer:

Scrat [10]3 years ago

6 0

I think the answer is (2,3)

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A family went to a baseball game. The cost to park cars was $5 and the cost per ticket was $21. Write a linear function in the f

Sophie [7]

Answer:

The total cost $y$ in dollars of going to the baseball game for $x$ people of a family can be given as:

$y=21x+5$

Step-by-step explanation:

Given:

At a baseball game:

Cost of car parking = $5

Cost per ticket = $21

To write an equation in the form of $y=mx+b$ representing the total cost of going to the baseball game.

Solution:

The total number of people in the family is = $x$

Using unitary method to find the cost of tickets for $x$ persons.

If 1 ticket costs = $21

Then, $x$ tickets will cost in dollars = $21x$

Fixed rate for car parking = $5

Thus, the total cost $y$ in dollars of going to the baseball game for $x$ people of a family can be given as:

$y=21x+5$

5 0

3 years ago

PLEASE HELP ME I DONT UNDERSTAND THIS AT ALL

Delicious77 [7]

What do you not understand

4 0

3 years ago

I need to answer for the parentheses

rewona [7]

Answer:

(4x+2) +(3x+4)

Step-by-step explanation:

2(6x²+11+4)

(6x+3)+(3x+4)

12x²+16x+6x+8

12x²+22x+8

let me know if this helps guys my husband helped me with it he is good at math

6 0

3 years ago

Please help I don't understand

Yuri [45]

If they are similar they are by a ration of 1:2 but you dont know all the angles or all the sides.

6 0

3 years ago

The plate is rotated 90° about the origin in the counterclockwise direction. In the rotated trapezoid, what are the coordinates

Crazy boy [7]

You haven't provided the coordinates of the original trapezium, therefore, I can only help with the concept.

From the givens, we can know that the rotation was 90° counter-clockwise about the origin.

The rule for this rotation is:

(x , y) ..............> (-y , x)

This means that to get the points of the rotated image, negate the y-value then exchange it with the x-value

Examples:

(1 , 3) rotated 90° counter-clockwise about the origin will give (-3 , 1)

(-2 , 4) rotated 90° counter-clockwise about the origin will give (-4 , -2)

(1 , -2) rotated 90° counter-clockwise about the origin will give (2 , 1)

(-3 , -5) rotated 90° counter-clockwise about the origin will give (5 , -3)

Hope this helps :)

4 0

3 years ago

Read 2 more answers