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Llana [10]
3 years ago
13

What is the mean of 102, 124, 140, 130, 120, 110, 124, 100

Mathematics
1 answer:
Zolol [24]3 years ago
4 0

Answer:

118.75

Step-by-step explanation:

The mean is all of the numbers added up and then divided by the number of numbers. Example: 1+1+1 number of numbers: 3. 1+1+1=3. 3÷3=1. In this case, it would be 102+124+140+130+120+110+124+100=950. The number of numbers is 8, so you would go 950÷8. Then you would get an answer of 118.75. I hope I helped!

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Find the height of a cylinder that has a radius of 5 m and a volume of 450 mº.
jekas [21]

The height of cylinder is 5.73 meters.

Further explanation:

Given

Volume\ of\ cylinder=V=450\ m^3\\Radius=r=5\ m

The formula for calculating volume of cylinder is:

V=\pi r^2h

Putting the values of volume, radius and pi

450=3.14*(5)*h\\450=3.14*25*h\\450=78.5*h\\h=\frac{450}{78.5}\\h=5.73\ meters

The height of cylinder is 5.73 meters.

Keywords: Volume of cylinder, Surface area of cylinder

Learn more about volume of cylinder at:

  • brainly.com/question/2860697
  • brainly.com/question/2977815

#LearnwithBrainly

5 0
3 years ago
Re-write the quadratic function below in Standard Form<br> y = -7(2x + 3)(x - 2)
earnstyle [38]

Answer:

-14x² + 7x + 42

Step-by-step explanation:

(2x + 3)(x - 2) = 2x² - 4x + 3x - 6  =  2x² - x - 6

-7(2x² - x - 6) = -14x² + 7x + 42

6 0
3 years ago
Help with 30 please I forget what supplementary and complementary mean
NARA [144]

Answer:

a. ∠AMB, ∠BMC

b. ∠BMC, ∠CMD

Step-by-step explanation:

supplementary=angles add up to 180°

Complementary=angles add up to 90°

6 0
3 years ago
Ivian scores 58 out of 80 marks in a maths test what is his score as a percentage
vagabundo [1.1K]

Answer:

72.5%

Step-by-step explanation:

- If we covert our fraction it should equal to 72.5

-Hoped I helped-

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8 0
3 years ago
If sin (7y) = cos (5y + 14), find y.
Reil [10]

Answer:

Step-by-step explanation:

sin(7y)=cos(5y+14)=sin(90-(5y+14))=sin(76-5y)

7y=76-5y

12y=76

y=76/12=19/3

or

sin(7y)=cos (5y+14)=sin (90+(5y+14))=sin (5y+104)

7y=5y+104

2y=104

y=52

7 0
4 years ago
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