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lukranit [14]
3 years ago
14

'ello chaps! I do require some help as I seem to be absolutely stumped. This question truly has whooped my bum :c

Mathematics
1 answer:
tamaranim1 [39]3 years ago
4 0
The answers to the questions

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What is the area of base for 7mm height and 7mm radius cylinder?​
sveta [45]

Answer:

153.94 mm^2

Step-by-step explanation:

area of base = area of a circle = Pi * radius squared

radius squared = 49

area of base =  Pi * 49

area of base =  153.94

3 0
2 years ago
How do you find standard deviation?
Mila [183]
You first work out the mean then for each number subtract the mean and square the result then work out the mean of those squared differences and take the square rot of that and you're done :)
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3 years ago
use a mental math strategy to find 4,290+3,602. explain how to check your answer using a different strategy.
Marianna [84]
=7,892 , you could write out your numbers, then line them up to then add them.
5 0
2 years ago
Into how many equal parts can the same cake be cut if the cuts can only be made along the gridlines?
Vladimir79 [104]

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I think its 20, hope this helps.

6 0
2 years ago
Find the surface area of the square pyramid below.
valentina_108 [34]

Answer:

728 m^2

Step-by-step explanation:

There are 5 faces of the square pyramid.

You have to calculate area of each face and add them to find surface area.

Bottom face is a square, so

area = 14^2 = 196 m^2

All the other faces are triangle with same area, so

4 × triangle area

4 × ((1/2)×14×19)

4 × 133

532 m^2

Now add those areas,

(196 + 532) m^2

728 m^2

4 0
3 years ago
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