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Alex73 [517]
3 years ago
10

1. If 3x + 4y =0 and x= 2y -5 , find the value of (X,y). 2. The sine of an angle is the ratio of the opposite to the? 3. Calcula

te the volume of a cylindrical steel bar which is 8cm long and 1.75cm in radius. (Take ) pi 22/7 Please help.
Mathematics
1 answer:
ddd [48]3 years ago
8 0

Answer:

1.

3x + 4y = 0

x - 2y = 5

Solving them simultaneously we get

x = 2 and y = -1.5

Value of (x , y ) is ( 2 , -1.5)

2. Sine of an angle is the ratio of the opposite to the Hypotenuse

3.

Volume of a cylinder = πr²h

r = radius h = height

V = 22/7 × 1.75² × 8

V = 22/7× 24.5

V = 77cm³

Volume of the cylinder is 77cm³

Hope this helps.

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17/9 15 divided 6 divided 30 divided and 3^3 from least to greatest
qaws [65]

I assume you mean: Order the following from least to greatest:

17/9, 15 divided by 6, 30, and 3^3

17/9 = 1 8/9

15/6 = 2 1/2

3^3 = 9

So it would be: 17/9, 15 divided by 6, 3^3, and 30

Make necessary adjustments if it was actually 6/30; the wording was confusing.


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Leno4ka [110]

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What is the smallest 3-digit palindrome that is divisible by both 3 and 4?
kirill [66]

Answer:

252

Step-by-step explanation:

To be divisible by 3, it's digits have to add to a number that is a multiple of 3.

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232 divisible by 4 but not 3

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252 I think this might be your answer

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