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Evgen [1.6K]
3 years ago
14

Express the result scientific notation

Mathematics
1 answer:
Papessa [141]3 years ago
5 0
5.07 x 10^6 the answer to the question
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The pipe has a length 29cm, internal diameter 6.5cm and thickness 0.5cm. What is the Volume
Reptile [31]

Answer:

Length of pipe = 21 cm

Internal diameter = 4 cm

Internal radius = \frac{4}{2} = 2 cm24=2cm

Thickness = 0.5 cm

Outer radius = 2+0.5=2.5 cm

Volume of pipe =\pi R^2 h - \pi r^2 hπR2h−πr2h

Volume of pipe =\frac{22}{7} (2.5)^2 (21)-\frac{22}{7}(2)^2(21)=148.5 cm^3

=\frac{22}{7} (2.5)^2 (21)-\frac{22}{7}(2)^2(21)=148.5 cm^3722(2.5)2(21)−722(2)2(21)=148.5cm3

Hence The volume is 148.5 cubic cm.

#more

The thickness of a metal pipe is 1.5cm. The inner diameter is 21cm. What is the volume of metal required for a pipe of length 7cm

5 0
2 years ago
If the scale factor of sides is 3, then the scale factor of area is ___ and the scale factor of
snow_tiger [21]

Answer:

Here is an example: if we have a rectangle that has a length 3 and a height of 4 and the scale drawing with a scale factor of 2, how many times bigger is the scale drawings area? The original shape is 3 by 4 so we multiply those to find the area of 12 square units.

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Adriana is excited to go to the used video game store to buy a gaming system later today. The gaming system usually costs x doll
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4 0
3 years ago
Write a quadratic function f whose zeros are - 5 and 7.
weeeeeb [17]
Our two binomials are (X-5)(X-7)

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Answer
x2-12x+35
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