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4 years ago

Calculate the mean: 5,10,12,4,6,11,13,5

1 answer:

3 0

For calculating the mean, you want to add up all of the numbers then divide by how many numbers there are. So you'd do:

5+10+12+4+6+11+13+5 then divide that by 8

The answer to your question is: 8.25

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A plane is already 44 cm tall and it will grow in one centimeter every month let H be the plants height in centimeters after M m

Bezzdna [24]

Answer:idea I jus wanna get my answers answered sk 3728 okay??

Step-by-step explanation:!3$:$::$2$:773727/

6 0

3 years ago

Decrease 40 by 12.5%

vredina [299]

Answer:

Step-by-step explanation:

Multiply 40 by 0.125 (12.5%) and you get 5

Subtract 5 from 40

6 0

3 years ago

What is the partial fraction decomposition of<br> 7x squared- 6x +9/<br> 3x(4x squared +9)

Anit [1.1K]

9514 1404 393

Answer:

1/(3x) =(x -2)/(4x^2 +9)

Step-by-step explanation:

The denominator cannot be factored further, so the final form will be ...

A/(3x) + (Bx +C)/(4x^2 +9)

The value of this is ...

(A(4x^2 +9) +(3x)(Bx +C))/(3x(4x^2 +9))

= ((3B+4A)x^2 +3Cx +9A)/(3x(4x^2 +9))

Equating coefficients gives ...

3B+4A = 7

3C = -6 ⇒ C = -2

9A = 9 ⇒ A = 1

Using the found value of A, we find ...

3B +4 = 7 ⇒ B = 1

Then the decomposition is ...

$\dfrac{7x^2-6x+9}{3x(4x^2+9)}=\boxed{\dfrac{1}{3x}+\dfrac{x-2}{4x^2+9}}$

4 0

3 years ago

Read 2 more answers

Volume: Question 4

gogolik [260]

Step-by-step explanation:

$volume = l \times b \times h \\ area =l \times b \\ so \: if \: area \: = 48 \: that \: means \: \\ volume \: = 48 \times 8 = {384cm}^{3}$

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3 years ago

Write 8 7/50 as a decimal number

LekaFEV [45]

Answer: 8.14

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers