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jonny [76]
3 years ago
7

Find the mean of 5,6,7 Can someone help meee

Mathematics
1 answer:
Nostrana [21]3 years ago
8 0
6

explanation:
5+6+7=18
18/3=6
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30 POINTS i need helpppp
nika2105 [10]
$jxxnskaiqJkqoqkzxkdkeoowodododod
5 0
2 years ago
chegg evaluate the following integral using trigonometric substitution. dx/square root(x^2-81), x > 9
vesna_86 [32]

Integration will be ln | ( x /9 ) + ( \sqrt{(x/9)^{2} - 1 } ) | + c  .

Given  ∫ 1 dx / ( x^{2} - 81 )

Put ,

x = 9 secθ

dx = 9 secθ tanθ dθ

and

\sqrt{x^{2}  - 9^{2} } = 9 tanθ

Substituting values in  ∫ 1 dx / ( x^{2} - 81 ) ,

∫ (9 secθ tanθ ) dθ / ( 9 tanθ )

∫ secθ dθ = ln | secθ + tanθ | + c

                = ln | ( x /9 ) + ( \sqrt{x^{2}  - 9^{2} } / 9 ) | + c

              = ln | ( x /9 ) + ( \sqrt{(x/9)^{2} - 1 } ) | + c

Hence , the integration will be ln | ( x /9 ) + ( \sqrt{(x/9)^{2} - 1 } ) | + c .

To learn more on integration follow link :

brainly.com/question/20156869

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6 0
1 year ago
450 is 75 percent of what number
hodyreva [135]
1.75/100X= 450 2. 450/.75 = X 3. X= 600
6 0
3 years ago
Read 2 more answers
Aubrey prepared 15 kilograms of dough after working 5 hours. How many hours did Aubrey work if she prepared 18 kilograms of doug
kykrilka [37]

Answer:

6 hours

Step-by-step explanation:

Set up a proportion:

15kg/5 hrs = 18kg/x hrs

Cross multiply:

5(18)=15x

90 = 15x

Divide by 15:

90/15 = x

6 = x

8 0
3 years ago
Read 2 more answers
Suppose Department X is 8,000 square feet, Department Y is 5,000 square feet, and Department Z is 6,000 square feet. What's the
den301095 [7]

Answer:

31.6%

Step-by-step explanation:

it is given that

Area of Department X = 8,000  square feet

Area of Department Y = 5,000 square feet

Area of Department Z = 6,000 square feet

now the total area = 8000+5000+6000

                               =19,000 square feet

Percentage of area covered by Department Z = \frac{area of Department Z}{total area }100%

                                               =\frac{6000}{19000} 100 %

                                                 =31.6 %

percentage of overhead expenses applied to Department Z = percentage of area covered by Department Z

hence we have,

percentage of overhead expenses applied to Department Z  = 31.6%

4 0
3 years ago
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