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cricket20 [7]
3 years ago
6

Pi = 3.14

Mathematics
1 answer:
mr Goodwill [35]3 years ago
8 0
Area of circle= 3.14r^2
r= 4
A= 50.27
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James has 3 blueberry pies. He cuts each pie into twelfths.<br> How many pieces will he have?
kondaur [170]

Answer: 36 pieces


Step-by-step explanation:

3/(1/12)=36

3*12+36


5 0
3 years ago
Find the circumference for 5 and 7
Thepotemich [5.8K]

Step-by-step explanation:

circumference = 2πr

5) 2πr

=2π(7)

= 43.98 mm

7) 2πr

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2 years ago
A rectangular block has square base of area 64 cm². If the thickness of the block is 5 cm, find its total surface area. ​
Andrej [43]

Answer:

total surface area of cube is <u>6 * area of one side</u>

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thickness is also given 5cm .

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4 0
2 years ago
Read 2 more answers
What is the volume of a certain cube? (1) The sum of the lengths of the edges of the cube is 36. (2) The surface area of the cub
german

Answer:

(1) The sum of the lengths of the edges of the cube is 36.

A cube has 12 equal edges. Sum = 36. Length of each edge = 36/12 = 3

Volume = 3*3*3 = 27

(2) The surface area of the cube is 54.

A cube has 6 identical faces. Area of each face = s^2 (s is the length of the side)

6s^2 = 54

s = 3

Volume = 3*3*3 = 27

Step-by-step explanation:

All you need to uniquely define a cube is any one measurement - length of a side/edge, area of a surface, volume etc. If you have any one of them, you can uniquely determine the others. So each statement alone is sufficient here.

To show how,

(1) The sum of the lengths of the edges of the cube is 36.

A cube has 12 equal edges. Sum = 36. Length of each edge = 36/12 = 3

Volume = 3*3*3 = 27

(2) The surface area of the cube is 54.

A cube has 6 identical faces. Area of each face = s^2 (s is the length of the side)

6s^2 = 54

s = 3

Volume = 3*3*3 = 27

8 0
3 years ago
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Ostrovityanka [42]

5. The blue one is y >= 5x - 7

and green is y >= -0.65x + 3

6. y <= (4/5)x

y >= -(5/4)x

3 0
3 years ago
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