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3 years ago

HELPPOO MEEEEE plessss

Mathematics

1 answer:

Viktor [21]3 years ago

6 0

the answer is yes. Why? Because if you move a vertical line across the graph, at any given moment, it only touches one point. If it touched more than one point it wouldn't be a function.

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If f(x) is the total cost, in dollars, of x cupcakes, which of the following statements best describes the meaning of f(5) = 12?

dezoksy [38]

Answer:

See below

Step-by-step explanation:

This a form of the proportional relationship:

f(x) = kx, where f(x) - total cost, k- cost of each item, x - number of items

We have:

f(5) = 12

It means:

Total cost of 5 cupcakes is $12

5 0

2 years ago

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

Akimi4 [234]

Answer:

294 inches squred

Step-by-step explanation:

3 x 10 = 30

3 x 9 = 27

10 x 9 = 90

2(30) + 2(27) + 2(90) = 294

7 0

2 years ago

SOLVE QUICK PLEASE!! 20 POINTS

PolarNik [594]

Answer:

SA = 384 in²

Step-by-step explanation:

Assuming we're finding surface area:

SA of top of large cube: 8(8) - 4(4) = 48 in²

SA of sides of large cube: 4(8)(8) = 256 in²

SA of exposed faces of small cube: 5(4)(4) = 80 in²

Total = 48 + 256 + 80 = 384 = ∑SA

6 0

3 years ago

HELP ME PLEASE! If s = 7, which is the value of 2s + 3? a. 20 b. 45 c. 13 d. 17

snow_tiger [21]

Answer:

Step-by-step explanation:

s=7

2s+3

=2(7)+3

=14+3

=17

Hope it helps.

8 0

3 years ago

Read 2 more answers

The president of a certain university receives a salary that is three times the salary of one of the department heads. The total

marissa [1.9K]

Answer:

Salary of President = $180,000

Salary of Dept. Head = $60,000

Step-by-step explanation:

The question is to find the salary of president and department head.

We let the salary of one of department heads be "x"

Since, the salary of president is THREE (3) TIMES a department head, we can say:

Salary of President = 3x

Now, we know the total of these 2 salaries is 240,000. Thus, we can write:

Salary of President + Salary of Dept. Head = 240,000

3x + x = 240,000

Now, we can solve for x:

$3x + x = 240,000\\4x=240,000\\x=60,000$

And now the president is "3x", so his salary is:

3(60,000) = 180,000

Thus,

President's salary = 180,000

Dept head's salary = 60,000

8 0

3 years ago