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4 years ago

!!!WILL GIVE BRANLIEST ASAP!!!

Mathematics

1 answer:

posledela4 years ago

6 0

Answer:

Domain: (-3,-3,0,4)

Range: (-5,0,1,7)

Function: No

Step-by-step explanation:

Because there is a repeating -3 in the domain.

Brainliest please!

You might be interested in

A store owner spends 7x + 13 dollars on two orders of boxes of light bulbs, including shipping.

Alex Ar [27]

Answer:

$B = 4x + 8$

A box = $11

Step-by-step explanation:

Given

$Total = 7x + 13$

Represent the first order with A and the second with B.

So, we have:

$A = 3x + 5$

Solving (a): Find B.

To find B, we make use of:

$A + B = Total$

Make B the subject

$B = Total - A$

Substitute values for Total and A

$B = 7x + 13 - (3x + 5)$

Open bracket

$B = 7x + 13 - 3x - 5$

Collect Like Terms

$B = 7x - 3x + 13 - 5$

$B = 4x + 8$

Solving (b): Cost of a box of light bulb

This means that:

$Total = 90$

Substitute 7x + 13 for Total

$7x + 13 = 90$

Collect Like Terms

$7x = 90 - 13$

$7x = 77$

Make x the subject

$x = \frac{77}{7}$

$x = 11$

6 0

4 years ago

A random variable X has a mean of 10 and a standard deviation of 3. If 2 is added to each value of X, what will the new mean and

dlinn [17]

Answer:

New mean will be 12

And no change in standard deviation

Step-by-step explanation:

We know the relationship between the two mean and standard deviation

$\sigma=\frac{\sqrt{x-x_i}}^2{n}$

$\sigma=\text{standard deviation},x=mean,n=\text{number of observations}$

If we add 2 to each value of x that means the mean will become n will become 2n and since we are adding 2 to each value

The new mean will become 12

And there will be no change in the standard deviation because of equal change in the each data.

6 0

3 years ago

Which of the following must be equal to 30% of x?

Nimfa-mama [501]

Answer:

You can go ahead with option D

Step-by-step explanation:

5 0

3 years ago

In the email data set in Chapter 1, the number variable de- scribed whether no number (labeled none), only one or more small num

monitta

Answer:

These outcomes are disjoint.

Step-by-step explanation:

(a) Are the outcomes none, small, and big disjoint

If they are disjoint, the sum of the total number of each has to be equals to the number of emails.

We have:

3921 emails.

549 with no numbers.

2827 with only one or more small numbers

545 had at least one big number.

549 + 2827 + 545 = 3921

Since the sum is equals to the number of emails, these outcomes are disjoint.

5 0

3 years ago

What is the answer?

Andrej [43]

Answer:

A I believe?

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers