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exis [7]
2 years ago
11

Please help me i dont understand

Mathematics
2 answers:
inn [45]2 years ago
8 0

Answer:

you are multiplying by 7

Step-by-step explanation:

so like 3 x 7 = 21

4 x 7 = 28

6 x 7 = 42

9 x 7 = 63

10 x 7 = 70

hope it helps

Viktor [21]2 years ago
8 0

7,9

Step-by-step explanation:

3x4=21

4x7=28

6x7=42

9x7=64

10x7=70

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The capacity of cylinder tank is 539 litres . if its height is 1.4m then find the area of base
Dennis_Churaev [7]

Step-by-step explanation:

Solution:

Here,

Volume of the tank=539 litres

=539×1000cm^3=539000cm^3

Height=1.4×100cm=140cm

Let the radius of the base be r cm

Then,

22/7×r^2×140=539000

or,r^2=539000×7/22×140

or,r^2=1225

or,r=35 cm

So,

Area of base=pie r^2

=22/7×35^2

=3850 cm^2

<em>Keep</em><em> </em><em>smiling </em><em>and</em><em> </em><em>hope</em><em> </em><em>u</em><em> </em><em>r</em><em> </em><em>satisfied </em><em>with</em><em> </em><em>my</em><em> </em><em>answer</em><em>.</em><em>Have</em><em> </em><em>a</em><em> </em><em>good</em><em> </em><em>day</em><em> </em><em>:</em><em>)</em>

3 0
3 years ago
Read 2 more answers
A can of pineapple juice is a cylinder with a radius of 2.4in.and a height of 11 in. what is the area of the label around the ca
chubhunter [2.5K]
\bf \textit{lateral surface area of a cylinder}\\\\&#10;A=2\pi r h\qquad \begin{cases}&#10;r=radius\\&#10;h=height\\&#10;-----\\&#10;r=2.4\\&#10;h=11&#10;\end{cases}\implies A=2\pi (2.4)(11)\implies A=52.8\pi
4 0
3 years ago
How do I do this and what is the answer ?
natka813 [3]

Answer: u r supposed to solve for substitution/add/subtract and ur answer should be (-2,9)

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP MEEEEEEE​
Marysya12 [62]

Answer:

area of circle=πr²=3.14×5²=78.5unit²

7 0
3 years ago
The volumes of two cubes are 32ft^3 and 1372ft^3
ser-zykov [4K]

Answer:

1) 8 : 343

2) 42.875 or 42 ⅞

3) 4 : 49

4) 16ft²

Step-by-step explanation:

Volume of cube: s³

Surface area of cube: 6s²

_____________________

32ft^3 and 1372ft^3 →

32 : 1372 = 8 : 343

343 / 8 = 42 ⅞ = 42.875

s³ → 6s²

s³ = 8, s = 2, s² = 4.

s³ = 343, s = 7, s² = 49.

These are proportional so it is already in the simplest ratio so it is not necessary to multiply by 6.

s³ → 8 : 343

6s² → 4 : 49

(4 / 49) × 196ft² = 16ft²

4 0
3 years ago
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