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2 years ago

Which relation is a function?

Mathematics

1 answer:

Annette [7]2 years ago

3 0

Answer:

B is the answer because a function is if none of the x values are the same with different y values.

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Francis have 5 more dollars than Julia together they have at most $45 let X represent the amount of money francis has. Which ine

Dmitrij [34]

X=francis y=julia

the answer is francis has $27.5 and julia has $17.5 you find this by 45 and dividing it by 2 then get on half and add 5 and with the other half subtract five

6 0

3 years ago

Erica Knits 18 Squares On Monday .She Knits 7 More Squares Each Day Form Tuesday Through Thursday. How Many Squares Does Erica K

Lubov Fominskaja [6]

Erica knits 39 on friday just add 21 and 18 then u get 39 hope i helped

4 0

3 years ago

A basketball court is in the shape of a rectangle. It has a length of (x - 7) meters and a width of (x + 3) meters:

Molodets [167]

Answer:

x2 - 4x - 21

Step-by-step explanation:

Area = (x -7 )(x +3)

= x*x - 7*x + x*3 - 7*3

=x2 - 4x - 21

5 0

3 years ago

A candidate running for office is putting on a gala as a fundraiser, with hopes of raising more than $7,900 in political contrib

baherus [9]

The simplest interpretation would go a little something like this:

We know that we want the total donation amount to be more than $7,900, so we can set up this inequality to begin with

$D \ \textgreater \ 7,900$

Where D is the total donations raised (in dollars). How do we find D? Well, we just add up the total number of table reservations sold and the total number of single tickets sold. If we let r stand for the number of reservation tickets and s stand for the number of single tickets, then we have

$D=540r+34s$

So, the inequality representing this situation would be

$540r+34s\ \textgreater \ 7,900$

And that would probably be fine for this problem.

Footnote: Of course, if this were a real-life scenario, we'd need to take some additional details into account: How many tables do we have? How many people can be seated at each table?

3 0

3 years ago

Emma is playing miniature golf. Her ball is 2 feet to the left of the right-hand wall. The hole is 4 feet to the left of the wal

NISA [10]

Answer:

She should aim 6 feet down the wall

Explanation:

The diagram attached sketches the situtation.

Since the angle with which the ball hits the wall is the same with which it bounces, angle β is the same for the two shown triangles.

Then, since both are right triangles, then all the angles are congruent and the triangles are similar. Hence, you can equal the ratios of the sides, to make an equation:

x/4 = y/2 ⇒ x = 2y

You have other equation:

x+ y = 18

Substitute

2y + y = 18
3y = 18
y = 18/3
y = 6 ← this is the distance down the wall where the ball should hit

x = 2(6) = 12

Then, she should aim 6 feet down the wall.

8 0

3 years ago