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3 years ago

How many centimeters are in 6.8 meters?

Mathematics

1 answer:

sesenic [268]3 years ago

7 0

Answer:

680 cm

Step-by-step explanation:

There are 100 cm in 1 m, so multiply 6.8*10, which equals 680

hope this helps :)

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the volume of a cube is increasing at a constant rate of 824 cubic centimeters per minute. At the instant when the volume of the

Maurinko [17]

Answer:

DA/dt = 75.27 cm²

Step-by-step explanation:

Cube Volume = V(c) = 683 cm³

DV(c) /dt = 824 cm³

V(c,x) = x³

Then

DV(c,x)/ dt = 3x² Dx/dt

( DV(c,x)/ dt )/ 3x² = Dx/dt (1)

Now as V(c,x) = x³ when V(c,x) = 683 cm³ x = ∛683

x = 8.806 ( from excel)

And by subtitution of this value in equation (1)

Dx/dt = ( DV(c,x)/ dt )/ 3x² ⇒ Dx/dt = 824 / 3*x²

Dx/dt = 824 /3*77.55

Dx/dt = 824/232,64

Dx/dt = 3,542

Then we got Dx/dt where x is cube edge. The area of the face is x² then

the rate of change of the suface area is

DA/dt = ( Dx/dt )²*6 ( 6 faces of a cube)

DA/dt = (3.542)²*6

DA/dt = 75.27 cm²

6 0

3 years ago

At Lincoln High School, 25% of the students play on a sports team, and 13% of students play on a sports team and take a music cl

vekshin1

Answer:C

Step-by-step explanation:

7 0

3 years ago

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Can someone please help me with this problem?! 15points

xxMikexx [17]

I’m fairly certain it is 70 , or option 4 :))

3 0

3 years ago

Identify the similar triangles

Dafna1 [17]

Answer:

QTS=STQ=STR

Step-by-step explanation:

5 0

3 years ago

Mia is calculating the volume of the cylinder below using the following work. A cylinder with height of 47 meters and diameter o

inn [45]

Mia’s first error was " she forgot to multiply π by (17.5)²(47) "

Step-by-step explanation:

The formula of the volume of a cylinder is V = π r² h, where

r is the radius of the base of the cylinder
h is the height of the cylinder

∵ The diameter of the base of the cylinder is 35 meters

∵ The radius = $\frac{1}{2}$ × diameter

∴ The radius = $\frac{1}{2}$ × 35 = 17.5 meters

∴ r = 17.5

∵ The height of the cylinder = 47 meters

∴ h = 47

- Substitute r and h in the formula of the volume

∴ V = π (17.5)²(47)

∵ Mai's first step is V = (17.5)²(47)

- She forgot to put π

∴ Her first error is she forgot to multiply π by (17.5)²(47)

Mia’s first error was " she forgot to multiply π by (17.5)²(47) "

Learn more:

You can learn more about the volume in brainly.com/question/6443737

#LearnwithBrainly

3 0

3 years ago

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