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rodikova [14]
3 years ago
15

Wat is equal to 7.5x4 what is equal to 7.5 * 4

Mathematics
1 answer:
IrinaK [193]3 years ago
7 0

Hello!

7.5 * 4 is equal to 30

7 * 4 = 28

.5 * 4 = 2

28 + 2 = 30

I hope this helps, and have a nice day!

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12.4. Measure of Dispersion<br>2076 Q.No. 15 Find the standard deviation of: 4, 6, 8, 10, 12.​
Alenkinab [10]

Answer:

Standard deviation of given data = 3.16227

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given sample size 'n' = 5

Given data  4, 6,8,10,12

Mean = \frac{4+6+8+10+12}{5} = 8

Mean of the sample x⁻ = 8

Standard deviation of the sample

                  S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}

<u><em>Step(ii)</em></u>:-

Given data

x          :         4      6       8       10      12

x-x⁻      :      4 - 8   6-8   8-8    10-8    12-8

(x-x⁻)   :        -4      -2     0          2        4

(x-x⁻)²  :        16     4       0         4        16  

 

  S.D = \sqrt{\frac{Sum(x-x^{-} )^{2} }{n-1}}

  S.D = \sqrt{\frac{16+4+0+4+16}{4}}

 S.D = √10 = 3.16227

<u><em> Final answer</em></u>:-

The standard deviation = 3.16227

8 0
2 years ago
A soup can in the shape of a cylinder is 4 inches tall and has a radius of 2 inches
svlad2 [7]
The volume is around 50.27

the surface area is: 75.4


the perimeter 25.13
7 0
3 years ago
Read 2 more answers
Can you explain how you got the answer?
Paladinen [302]

Answer:

Find the stated lengths and values of rectangle M 26 N

LMNO. Round to the nearest tenth. P 5a - 7 2a + 8 240 9. MO

10. LP O 11. LM 12. ZNMO Find the missing leng..

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2 years ago
Which equation represents a line that passes through (-9, -3) and has a slope of -6? - = y-9 = -6(x-3) y + 9 = -6(x + 3) y-3 = -
kupik [55]

Answer:

(y+3)=−6(x+9) ( y + 3 ) = − 6 ( x + 9 )

Step-by-step explanation:

4 0
3 years ago
Solve using Combining Like Terms (CLT)<br><br> 7 + 4d + 5d = 7d + 3
Vesnalui [34]

Answer:

d= -2

Step-by-step explanation:

7 + 4d + 5d = 7d + 3

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2d = -4

Divide each side by 2

2d/2 = -4/2

d = -2

3 0
3 years ago
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