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vodomira [7]
3 years ago
11

Joanna needs a book to prop up a table leg. She randomly selects a book , and selects another book . What is probability that sh

e will choose 2 math books? If there are 17 books and 8 are math
Mathematics
1 answer:
Stolb23 [73]3 years ago
3 0
Id say 40%
because 8 are math so 9 of them are other 
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Here’s a graph of a linear function. Write the equation that describes that function. (Zoom in if blurry)
Maru [420]

Answer: y = x/2 + 3

Step-by-step explanation:

The equation of a straight line can be represented in the slope-intercept form, y = mx + c

Where c = intercept

Slope, m = change in value of y on the vertical axis / change in value of x on the horizontal axis

change in the value of y = y2 - y1

Change in value of x = x2 -x1

y2 = final value of y

y 1 = initial value of y

x2 = final value of x

x1 = initial value of x

Looking at the graph,

y2 = 6

y1 = 4

x2 = 6

x1 = 2

Slope,m = (6 - 4)/(6 - 2) = 2/4 = 1/2

To determine the intercept, we would substitute x = 2, y = 4 and m= 1/2 into y = mx + c. It becomes

4 = 1/2 × 2 + c

4 = 1 + c

c = 4 - 1

c = 3

The equation becomes

y = x/2 + 3

5 0
2 years ago
A restaurant has 60 tables. The graph shows the average number of tables occupied during each day of the week. During which day
Naddika [18.5K]

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Saturday is at the highest point meaning it has less empty tables

8 0
2 years ago
Some teenagers collected trash for a beach cleanup. The data for the number of pounds of trash collected by each teenager are sh
Mumz [18]

Answer:

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Step-by-step explanation:

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26, 26, 21, 22, 20, 25, 35

Step 1

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Mean = 26+ 26+ 21+ 22+20+25+ 35/7

= 175/7

= 25

Step 2

We find the Standard Deviation

The formula for Standard deviation that we would use is the Population Standard deviation, this is because the data given above is the data of the number of pounds of trash collected by each teenager

= √(x - Mean)²/n

= √(26 - 25)²+( 26 - 25)²+ (21 - 25)²+ (22 - 25)² +(20 - 25)²+(25 - 25)²+ (35 - 25)²/7

= √152/7

= √21.7142857

= 4.65985898

Approximately = 4.66

5 0
2 years ago
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stealth61 [152]

Step-by-step explanation:

fg(x) =

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3 years ago
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