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2 years ago

10 Which is 5,291,000 written in scientific notation

Mathematics

1 answer:

maxonik [38]2 years ago

5 0

Answer: D. 5.291 x 10∧6

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Cylinders A and B are similar. The volume of cylinder A is 20mm3. Calculate the volume of cylinder B.

MrRa [10]

The question is incomplete. The complete question is :

Cylinders A and B are similar. The length of the cylinder A is 4 mm and the length of cylinder B is 6 mm. The volume of cylinder A is 20mm3. Calculate the volume of cylinder B.

Answer:

67.5 $mm^3$

Step-by-step explanation:

Given that :

Cylinder A and cylinder B are similar.

Let volume of cylinder A = 20 $mm^3$

We know the volume of a cylinder is given by V = $\pi r^2 h$

where, r is the radius of the cylinder

h is the height of the cylinder

We have to find the scale factor.

The length scale factor is = $\frac{6}{4}$

$=\frac{3}{2}$

Area scale factor $=\left(\frac{3}{2}\right)^2$

$=\frac{9}{4}$

∴ Volume scale factor $=\left(\frac{3}{2}\right)^3$

$=\frac{27}{8}$

Therefore, the volume of cylinder B is $=20 \times \frac{27}{8}$

= 67.5 $mm^3$

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3 years ago

Who can prove that ? :D prove that lim x about 0 (sin(x)/x)=1 by using sandwich theorem

earnstyle [38]

$cos (x) \leq \frac{sin (x)}{x} \leq 1$

Apply limit as x->0

8 0

3 years ago

What is 2x =6.5 And how

Leona [35]

Answer:

Step-by-step explanation:

2x =6.5

To find the value of x, divide both sides by 2 so you will have 1x.

x = 3.25

8 0

2 years ago

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A truck has a force of 2000 newtons and is moving 10 miles per hour. How much mass does the truck have?

worty [1.4K]

Answer:

Force= Mass×Accelaraion

F=m×a

But as The unit of accelaration is given miles per hour and the SI is meters per second sqaure we have to convert 10mph to m/s²

Thus, we have 10mph = 4.47 meters per second square. (i converted using scientific calculator)

So now we have,

2000N= m×4.47m/s²

= 2000/4.47m/s²=m

= 447.42

Thus the mass of the object is 447.42 (i am not sure of units)

7 0

2 years ago

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Write the number in standard notation. 9 x 10^4

bonufazy [111]

10^4 = 10,000

9 x 10,000 = 90,000

7 0

2 years ago

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