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3 years ago

Which relations are functions and which are not functions?

Mathematics

1 answer:

suter [353]3 years ago

8 0

Hello!

In a function, each input has one output. In 1, three has two outputs, 7 and 6, so it is not a function.. In 3, 4 has two outputs, 2 and 6, so it is also not a function. 2 and 4 all have different inputs, so they are both functions.

B 1
A 2
B 3
A 4

I hope this helps!

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suppose there were 2 types of tickets to a show . advanced and same day adviced cost $30 . same day $25. for 1 performance 45 ti

VikaD [51]

30 x 30 + 25 x 15 = $1275

So,
30 tickets were sold from the $30 type, while 15 tickets were sold from the $25 type!

7 0

3 years ago

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SSSSS [86.1K]

Angle Angle Side. The side is given to you and use the interior angle to find one angle, and the the reflexive property to find the other.

6 0

3 years ago

If f(x) = x ^ 2 + 3 , then f(x+y)=?

kobusy [5.1K]

Answer:

f(x)=x^2+3

f(x+y)=(x+y)^2+3

this is done by replacing x with (x+y)

f(x+y)=x^2+2xy+y^2+3

therefore : f(x+y)= x^2+y^2+2xy+3

5 0

3 years ago

A salesperson at a jewelry store earns7% commission each week. Last week, jarrod sold 450$ worth of jewelry. How much did he m

Mademuasel [1]

Answer:

he made $31.50 in commission

the jewelry store made $418.50

Step-by-step explanation:

turn the percent to a decimal by moving it 2 places 7%=.07

then multiply .07 by 450 to get his commission =31.50

then subtract 31.50 and 450 = 418.50

6 0

3 years ago

HELP PLEASE

Anuta_ua [19.1K]

Answer:

The Drama Club needs to sell more than 3 pictures to make a profit.

The inequality 10x ≥ 2.55x +25 represents the situation.

Step-by-step explanation:

Given that:

Rent for lighting equipment = $25

Price per print = $2.55

Selling price of one picture = $10

x be the number of pictures.

Selling price * No. of pictures sold ≥ Price of per print * pictures printed + rent

10x ≥ 2.55x +25

10x-2.55x≥25

7.45x≥25

Dividing both sides by 7.45

$\frac{7.45x}{7.45}\geq \frac{25}{7.45}\\x\geq 3.35$

Hence,

The Drama Club needs to sell more than 3 pictures to make a profit.

The inequality 10x ≥ 2.55x +25 represents the situation.

5 0

3 years ago