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Zigmanuir [339]

3 years ago

15

Which of these graphs represents a function

1 answer:

azamat3 years ago

8 0

Answer: C.

Explanation: A function only has one y value for every x value. This means that an x cannot have more than one y value. You can do the vertical line test on graphs to figure out if it is a function or not. In this case, graph C is the only one that passes the vertical line test.

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Annie has a $50 gift card for a restaurant and arcade. Annie spent $23.75 on food and is ready to play games in the arcade each

Stells [14]

Answer:

21

Step-by-step explanation:

50 - 23.75 = 26.25

26.25 ÷ 1.25 = 21

4 0

3 years ago

Can someone help me please

Alborosie

Answer:

7

Step-by-step explanation:

Count the units (Squares) from the first point to the second and you will see that it is 7 units away.

6 0

3 years ago

Read 2 more answers

In a sample of 41 temperature readings taken from the freezer of a restaurant, the mean is 29.7 degrees and the population stand

yKpoI14uk [10]

Answer: $=(29.1596\text{ degrees},\ 30.2404\text{ degrees})$

Step-by-step explanation:

Given: Sample size: n = 41

Sample mean $\overline{x}= 29.7$ degrees

Population standard deviation $\sigma=2.7$ degrees

Confidence level (c) = 80% =0.80

Significance level (a) = 1- c = 1-0.80 = 0.20

z-score for 80% confidence level : z = 1.2816 [from z-table]

Confidence level for population mean :-

$\overline{x}\pm z\dfrac{\sigma}{\sqrt{n}}$

$=29.7\pm ( 1.2816)\dfrac{2.7}{\sqrt{41}}$

$=29.7\pm ( 1.2816)\dfrac{2.7}{6.403124}$

$=29.7\pm ( 1.2816)(0.42167)$

$=29.7\pm 0.5404$

$=(29.7-0.5404,\ 29.7+0.5404)$

$=(29.1596,\ 30.2404)$

Hence, 80% confidence interval for the temperatures in the freezer $=(29.1596\text{ degrees},\ 30.2404\text{ degrees})$

7 0

2 years ago

At a movie theater, 360 people can see a particular movie over a period of 3 hours. At this

Agata [3.3K]

Answer:233

Step-by-step explanation:cause i said so

7 0

3 years ago

Read 2 more answers

Answer both please man. Or sorry you'll get a 1 star rating. THanks for answering guys!

Nataliya [291]

For the first one,

x = 10.

For the second one,

x = 12

5 0

3 years ago

Read 2 more answers