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max2010maxim [7]
3 years ago
13

What is 12/3rds times 21/3rd times 2

Mathematics
1 answer:
Lena [83]3 years ago
6 0
12/3 times 21/3 times 2 is 56.
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What is the product of 4.23 and 1.2
Kruka [31]

Answer:

its 5.08

Step-by-step explanation:

5 0
3 years ago
If an regular interior angle of a regular polygon is 140 degrees, how many sides does the polygon have and I need the work
torisob [31]

Answer:

9 sides

Step-by-step explanation:

exterior angle + interior angle = 180° , so

exterior angle + 140° = 180° ( subtract 140° from both sides )

exterior angle = 40°

The sum of the exterior angles of a polygon = 360°

Dividing sum by the measure of 1 exterior angles gives number of sides

number of sides = \frac{360}{40} = 9

8 0
3 years ago
10 Which equation matches the graph? Oy= x y -5 y= 2x O y= 7 7 x -10 5 10 y= 3x -5 -10​
kvv77 [185]

Answer:

y=2x

Step-by-step explanation:

slope = rise/run = 2/1 = 2

8 0
3 years ago
URGENT HELP NEEDED
kondor19780726 [428]
<span>"ratio of princesses to celebrities is 3:1"

The are 3 more times princesses as celebrities.

</span>"<span>The ratio of superheros to princesses is 5:4"

For each 4 princesses, there are 5 superheroes.

For 1 celebrity, there are 3 pincesses.

For 4 celebrities, there are 12 princesses.
For 12 princesses, there are 15 superheroes.

The ratio of celebrities to princesses to superheroes is
4:12:15 or 4x:12x:15x

Add them: 4x + 12x + 15x = 31x

31x = 93

x = 93/31 = 3

Celebrities: 4x = 4(3) = 12
Princesses: 12x = 12(3) = 36
Superheroes: 15x = 15(3) = 45

</span>
3 0
4 years ago
Find the total surface area of this cylinder . Give your answer to 1 decimal place 7cm 15 cm
Leto [7]

Answer:

Step-by-step explanation:

r = 7 cm

h = 15cm

pi = 3.14

Top and bottom (These questions drive you crazy when you don't know if there is both a top and bottom).

Area = 2* pi *r^2 = 2 * 3.14 * 7^2

Area = 2 * 3.14 * 49

Area =                                                        307.72  Don't round this.

Cylinder body

Cylinder body = Circumference * h = 2*pi * r * h

Cylinder body = 2* 3.14 * 7 * 15

Cylinder body =                                      <u> 659.4</u>

<u />

Total =                                                      967.12

Rounded        967.1     Answer

3 0
3 years ago
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