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Hatshy [7]
3 years ago
10

Need help might be easy for you

Mathematics
2 answers:
garri49 [273]3 years ago
7 0
SA of rectangular prism can be found using the formula:

SA = 2(lw + hw + hl)
SA = 2(12*8 + 5*8 + 5*12)
SA = 2(196)
SA = 392 in²

Hope this helps :)
Fiesta28 [93]3 years ago
6 0
8*5=40
8*5=40
12*5=60
12*5=60
12*8=96
12*8=96
Now add the products up.
80+120+96+96
392 is the answer. Hope this helps. (it is C.)
You might be interested in
Subtract 4 3/4 - ( -1 1/12 ) Enter your answer as a simplified mixed number by filling in the boxes
Lera25 [3.4K]

Answer:

Step-by-step explanation:

To convert the measurements of metric system into another units of metric system we have to either multiply it by 10, 100, 1000, 10000, 100000, etc or divide by 10, 100, 1000, 10000, 100000, etc.

If we have to convert bigger unit into smaller unit then we have to multiply the unit by the multiples of 10, then the decimal point is shifted to right by 1 or 2 or 3 or 4 , etc. places.

For example, 1.2 kg is converted into g so we have to multiply it by 1000, so decimal point is shifted to right by 3 places, i.e.,

1.2 x 1000 = 1200 g

If we have to convert smaller unit into bigger unit then we have to divide the unit by the multiples of 10, then the decimal point is shifted to left by 1 or 2 or 3 or 4 , etc. places.

For example, 12 cm is converted into m so we have to divide it by 100, so decimal point is shifted to left by 2 places, i.e.,

12 / 100 = 0.12 m  

8 0
3 years ago
Find the odds for and the odds against the event rolling a fair die and getting a 2, a 6, a 5 or a 1,
Archy [21]

Answer:

2/3

Step-by-step explanation:

If the dice has six sides then it would be 4/6 because there's four numbers out of 6 and if you simplify it then it would be 2/3.

8 0
3 years ago
15) n-4-9
marshall27 [118]

Answer:

...

Step-by-step explanation:

15) n - 13

16) 3n

17) 12x - 9

18) -k

19) -20n

20) -4n

21) 3 - 21m

22) 16n + 18

6 0
3 years ago
A rectangular board is 1.8 meters long and 1.25 meters wide. What is the area of the board in square millimeters? Do not round y
lilavasa [31]

Answer:

2250000 mm^2 or 2.25 m^2

Step-by-step explanation:

Area=1.8*1.25=2.25 m^2=2250000 mm^2

7 0
2 years ago
The correlation coefficient r between the values assumed by two variables, X
Flura [38]

The slope of the line of best fit to the raw-score scatter plot is 0.98

  • The equation is y = 0.98x - 3.74
  • The value of y given that x = 12 is 8.02

<h3>How to determine the slope of the line?</h3>

From the question, we have the following parameters that can be used in our computation:

  • Standard deviations of X, Sx = 1.88
  • Standard deviations of Y, Sy =2.45
  • Correlation coefficient, r between X and Y = 0.75

The slope (b) of the line is calculated as

b = r * Sy/Sx

Substitute the known values in the above equation, so, we have the following representation

b = 0.75 * 2.45/1.88

Evaluate

b = 0.98

<h3>The equation of the line of best fit</h3>

A linear equation is represented as

y = bx + c

Where

Slope = b

y-intercept = c

In (a), we have

b = 0.98

So, we have

y = 0.98x + c

Recall that the point (13, 9) is on the line of best fit.

So, we have

9 = 0.98 * 13 + c

This gives

9 = 12.74 + c

Evaluate

c = -3.74

So, we have

y = 0.98x - 3.74

<h3>The value of y from x</h3>

Here, we have

x = 12

So, we have

y = 0.98 x 12 - 3.74

Evaluate

y = 8.02

Read more about line of best fit at

brainly.com/question/1564293

#SPJ1

4 0
1 year ago
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