3 years ago

Please help asap!!!!!!

Mathematics

1 answer:

fomenos3 years ago

6 0

Answer:

Yes.

Explanation:

Rotational symmetry looks the same after some rotation by a partial turn.

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15 deliveries in 5 hours = deliveries per hour

lyudmila [28]

Answer:

3 deliveries per hour

Step-by-step explanation:

$\frac{15}{5} = 3 \: deliveries \: per \: hour$

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3 years ago

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What is the slope of the line that passes through the points (-9, -7) and<br> (-11, 6)

anzhelika [568]

Answer:

-13/2

Step-by-step explanation:

-13/2 is the answer

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3 years ago

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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There answer is 120
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