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Kaylis [27]
3 years ago
11

Define a variable, write an inequality, and solve each problem. Check your solution.

Mathematics
1 answer:
grandymaker [24]3 years ago
7 0

Answer:

Step-by-step explanation:

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Use differentials to estimate the amount of paint needed (in m3) to apply a coat of paint 0.04 cm thick to a hemispherical dome
pogonyaev

The amount of paint is the volume of paint needed.

The amount of paint needed is 0.065312 cubic meters

<h3>How to determine the amount of paint needed</h3>

The volume of a hemisphere is:

V = \frac 23\pi r^3

Differentiate the above equation

V' = 2\pi r^2 r'

The above equation represents the estimate of the amount of paint needed.

Where:

  • r represents the radius (r = 52/2 m)
  • r' represents the thickness (r' = 0.04 cm)

So, we have:

V' = 2\pi r^2 r'

V' = 2 * 3.14 * (52/2\ m)^2 * (0.04cm)

V' = 2 * 3.14 * (26\ m)^2 * (0.04cm)

Express cm as m

V' = 2 * 3.14 * (26\ m)^2 * (0.0004m)

V' = 0.065312 m^3

Hence, the amount of paint needed is 0.065312 cubic meters

Read more about volumes at:

brainly.com/question/10171109

3 0
2 years ago
Please write step by step of how you got the answer. Thankyou
stealth61 [152]

Answer:

The solution in the attached figure

Step-by-step explanation:

step 1

Place the numbers  -4, 4, 0, and -3 in the left side

Adds the numbers

-4+4+0-3=-3 ----> is correct

step 2

Place the numbers  3, -1, and -2 in the right side

Adds the numbers

-3+3-1-2=-3 ----> is correct

step 3

Place the numbers  1 and 2 in the base side

Adds the numbers

-4+1+2-2=-3 ----> is correct

The solution in the attached figure

7 0
3 years ago
Two long jumpers competed in a world-class track meet. The first athlete jumped a distance of 28.65 feet, and the second athlete
Alja [10]

Answer:

4.4 feet.

Step-by-step explanation:

Just subtract the lower from the higher jump.

28.65 - 24.25

= 4.4 feet.

5 0
3 years ago
The area of Hawaii is 40.47x100 square kilometers. What is Hawaii's area?
Gemiola [76]

40.47×100=4047 so just multiply it and the the answer is 4047

7 0
3 years ago
Rita bought 6 boxes of chocolates. Each box cost $6.48. How much did she spend?
Elena L [17]

Answer:

38.88

Step-by-step explanation:

Take the price per box and multiply by the number of boxes

6.48*6 =38.88

3 0
3 years ago
Read 2 more answers
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