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3 years ago

{(-1, 2), (0, 2), (5, 2)} is a function. O True O False

Mathematics

2 answers:

jarptica [38.1K]3 years ago

6 0

True. When the points are plotted on a graph and connected, they pass the vertical line test. No x value is the same.

neonofarm [45]3 years ago

5 0

This would be true I believe

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A company that offers tubing trips down a river rents tubes for a person to use for $20 and “cooler” tubes to carry food and wat

Licemer1 [7]

<u>Answer:</u>

The number of each type of tube does the group rent is 11 tubes for person and 4 “cooler” tubes to carry food and water

<u>Explanation:</u>

The rents for tubes for a person to use = $20

The rents for “cooler” tubes to carry food and water = $12.50.

The rent for a total of 15 tubes = $270

11 tubes whose rent cost $20 = $11 \times 20$

= 220

4 “cooler” tubes rent cost $12.50 = $4 \times 12.5$

= 50

Therefore for 15 tubes = 11 +4= 15

cost = 220 + 50

=270

The number of each type of tube does the group rent is 11 tubes for person and 4 “cooler” tubes to carry food and water

8 0

3 years ago

What is the slope of the line that includes points (15,-3) and (16,1)

Rasek [7]

Answer:

-4

Step-by-step explanation:

I hope this helps

6 0

3 years ago

20 points and marked brainlyist help me ASAP

horsena [70]

Answer + Step-by-step explanation:

(a)

Check the attached image.

(b)

Range of sample means : 7.5 - 5.75 = 1.25

(c)

The closer the range of the sample means is to 0 ,

the more confident they can be in their estimate . $\huge \checkmark$

The farther the range of the sample means is from 0 ,

the more confident they can be in their estimate .

The mean of the sample means will tend to be a better estimate

than a single sample mean . $\huge \checkmark$

A single sample mean will tend to be a better estimate

than the mean of the sample means .

5 0

2 years ago

Please help me!!!

vichka [17]

B 2,_2 is the answer that i get

4 0

3 years ago

A music company sells CDs for a particular artist. The company has advertising cost of $4,000 and recoding costs of $10,000; The

alukav5142 [94]

Answer:

First, let's write all the costs:

$4,000 in advertising.

$10,000 in the recording.

$5,50 per cd.

Then we have that the cost will be:

C(x) = $4,000 + $10,000 + $5.50*x

where x is the number of CDs distributed.

C(x) = $5.50*x + $14,000.

Now, they win $7.20 per cd, so the tota wins are:

W(x) = $7.20*x

The profit will be the difference between the total win and the cost:

p(x) = $7,20*x - $5.50*x - $14,000 = $1.7*x - $14,000

Now with this function, we can calculate the number of CDs that the company needs to sell in order to break even, that is when the profit is exactly zero.

P(x) = $0 = $1.7*x - $14,000

$1.7*x = $14,000

x = $14,000/$1.7 = 8,235.3 CDs, that we should round up to 8,236.

This means that the company must sell more than 8,236 if they want to have a positive profit.

8 0

3 years ago