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ad-work [718]
3 years ago
5

5. Which equation is an open sentence?

Mathematics
1 answer:
dimaraw [331]3 years ago
5 0

Answer:

a

Step-by-step explanation:

there is an unknown thingy which is x

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The figure is made up of a cylinder, a cone, and a half sphere. The radius of the half sphere is 3 inches. What is the volume of
wolverine [178]

The volume of the composite figure is 263.76 inches³

Step-by-step explanation:

The volume of a cylinder of radius r and height h is

  • V = πr²h ⇒ Bh

The volume of a cone of radius r and height h is

  • V = \frac{1}{3} πr²h ⇒ \frac{1}{3} Bh

The volume of a sphere with radius r is

  • V = \frac{4}{3} πr³

∵ The figure is made up of a cylinder, a cone, and a half sphere

∵ The radius of the cylinder = 3 inches

∵ The height of the cylinder = 6 inches

∵ π = 3.14

- Use the rule of the volume of the cylinder above

∴ The volume of the cylinder = (3.14)(3)²(6)

∴ The volume of the cylinder = 169.56 inches³

∵ The radius of the cone = 3 inches

∵ The height of the cone = 4 inches

∵ π = 3.14

- Use the rule of the volume of the cone above

∴ The volume of the cone = \frac{1}{3}(3.14)(3)^{2}(4)

∴ The volume of the cone = 37.68 inches³

∵ The radius of the half sphere = 3 inches

∵ π = 3.14

- Use the rule of the volume of the sphere above to find the

   volume of the half sphere

∴ The volume of half sphere = (\frac{1}{2})(\frac{4}{3})(3.14)(3)^{3}

∴ The volume of half sphere = 56.52 inches³

To find the volume of the composite figure add the volumes of the three shapes above

∵ The volume of the composite figure = 169.56 + 37.68 + 56.52

∴ The volume of the composite figure = 263.76 inches³

The volume of the composite figure is 263.76 inches³

Learn more:

You can learn more about the volume in brainly.com/question/12497249

#LearnwithBrainly

7 0
4 years ago
Read 2 more answers
Which list is ordered from greatest to least? WILL MARK BRAINLIEST
jekas [21]

Answer:

D

Step-by-step explanation:

1.8 is the greatest number and then you have the choice between -66% or -1/3 as the second greatest number. lets convert them into decimals so your looking at them all the same. -1/3 is -.3333( repeating). -66% is -.66. So that would mean that -1/3 is the greater number.

4 0
3 years ago
a red hot ar balloon is 100 feet off the ground and is rising at a rate of 8 feet per second. a green hot air balloon is 160 fee
zhenek [66]

Answer:

it would be a fraction of a sec

Step-by-step explanation:

see if you just simply took out a calculator you would see its not possible unless you knew what the balloon is descending at during the fraction of the seconds

7 0
3 years ago
The plane takes off an climbs steadily for 15 minutes until it reaches 30,000 feet. It travels at that altitude for 2 hours unti
g100num [7]
The plane has to be going a speed of at least 200 miles per hour
3 0
3 years ago
Read 2 more answers
5470
nadya68 [22]

Answer:  1144

Step-by-step explanation:

Given: Machine A makes 7 parts every 10 minutes.

i.e. it makes \dfrac{7}{10} parts in 1 minute.

Machine B makes 16 parts every 15 minutes.

i.e. it makes \dfrac{16}{15} parts in 1 minute.

On Monday,

machine A makes parts for 12 hours(720 minutes).    [1 hour = 60  minutes, 12 hours = 12 x 6 = 720 minutes]

i.e. Total parts made = \dfrac{7}{10}\times720

i.e. Total parts made = 504

machine B makes parts for 10 hours(=60x 10=600 minutes)

i.e. Total parts made = \dfrac{16}{15}\times600

i.e. Total parts made = 640

Total parts made by both machines = 504+640 =1144

Hence, the total number of parts made by the two machines on Monday=1144.

7 0
3 years ago
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