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masya89 [10]
1 year ago
13

Pls help! 30 points!

Mathematics
2 answers:
ohaa [14]1 year ago
7 0
The top left hand graph represents the two equation. The open circle means it is less than but not equal. The closed sign always includes equal to. You have it marked correctly on the attachment I see.

Have a good day.
miss Akunina [59]1 year ago
6 0

Step-by-step explanation:

its the third onebecause i got it right

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Y-4=3(x+4) write in slope intercept form
Ann [662]

Answer:

y - 4 = 3x + 12

y= 3x + 12 + 4

y = 3x + 16

7 0
2 years ago
Read 2 more answers
The sum of two numbers is 262. The difference of those same two numbers is 172. Which answer choice shows both numbers?
STatiana [176]

Answer:

A = 217

B = 45

Step-by-step explanation:

A+B = 262

A - B = 172

A = 172 + B

172 + B + B = 262

2B = 90

B = 45

A = 172 + (45)

A = 217

HOPE THIS HELPS!!!!

8 0
2 years ago
Mr. Acosta, a sociologist, is doing a study to see if there is a relationship between the age of a young adult (18 to 35 years o
Alik [6]

Answer:

There is a relationship between the age of a young adult and the type of movie preferred.

Step-by-step explanation:

In this case we need to test whether there is a significance relationship between the age of a young adult and the type of movie preferred.

The hypothesis can be defined as:

<em>H₀</em>: Age of a young adult and movie preference are independent.

<em>Hₐ</em>: Age of a young adult and movie preference are not independent.

The test statistic is given as follows:

\chi^{2}=\sum\limits^{n}_{i=1}{\frac{(O_{i}-E_{i})^{2}}{E_{i}}}

Consider the table below.

The formula to compute the expected frequencies is:

E_{i}=\frac{\text{Row Total}\times \text{Column Total}}{\text{Total}}

The Chi-square test statistic value is:

\chi^{2}=\sum\limits^{n}_{i=1}{\frac{(O_{i}-E_{i})^{2}}{E_{i}}}=2.6013

The significance level of the test is, <em>α</em> = 0.05.

The degrees of freedom of the test is,

df = (r - 1)(c - 1)

   = (3 - 1)(3 - 1)

   = 2 × 2

   = 4

Compute the <em>p</em>-value as follows:

<em>p</em>-value = 0.6266

*Use a Chi square table.

As the <em>p-</em>value is more than the significance level the null hypothesis was failed to be rejected.

Thus, concluding that there is a relationship between the age of a young adult (18 to 35 years old) and the type of movie preferred.

5 0
3 years ago
Ramon paid $3.25 for notepads and $1.80 for markers. what is the total number of items he bought?
evablogger [386]

Answer:

5.05

Step-by-step explanation:

3.25+1.80=5.05

4 0
3 years ago
Read 2 more answers
can someone j help me w this, ive reposted it twice now :-(((( due in an hour please help!:( will give brainliest
Doss [256]

Step-by-step explanation:

I got you,

a) Work...

First equation: y = 4x + 3

Second equation: y = 2x + 11

If he wants to play 2 games...

y = 4 (2) + 3

y = 11

y = 2 (2) + 11

y = 15

<u>Answer for part a: If a customer wants to rent shoes and play two games, they'll pay more with the new price plan. With the current price plan, they'll pay 11 dollars, but with the new price plan, they'll pay 15 dollars.</u>

b) Work...

seven games...

y = 4 (7) + 3

y = 31

y = 2 (7) + 11

y = 25

<u>Answer for part b: If the customer wants to play 7 games, including the shoes, they would pay less using the new plan. If the shes were not included, the new price will still be less. With the shoes, 7 games, with the original plan, is 31 dollars but 25 dollars with the new plan. If they didn't want to rent shoes, they would pay 28 dollars with the original plan but only 14 dollars with the new plan. All in all, they spend less on the new plan anyways.</u>

I hope this helps :)

7 0
2 years ago
Read 2 more answers
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