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nydimaria [60]
3 years ago
7

Please help, im confused

Mathematics
1 answer:
elixir [45]3 years ago
8 0
It look like that. 
Diameter = 2 so the radius = 1/2 * diameter = 1in

Volume of the cylinder =  pi r^2 h 

where h = height of the cylinder = 9 in

so volume = pi * 1^2 * 9  =  28.27 in^2  to nearest hundredth
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Two triangular roofs are similar. The ratio of the corresponding sides of these roofs is 2:3. If the altitude of the smaller roo
schepotkina [342]

Answer:  6.75 feet

Step-by-step explanation:

Since, the ratio of the side of the similar triangle = 2 : 3

Thus, by the property of similar triangle,

The ratio of the altitudes of the triangle = 2 : 3

Let the altitude of smaller triangle = 2 x

And, the altitude of larger triangle = 3 x

Where x is any number.

According to the question,

2 x = 4.5

x = 2.25

Therefore, the altitude of larger triangle = 3 × 2.25 = 6.75 feet

5 0
3 years ago
1plss help, its time
DanielleElmas [232]

Answer:

60 degrees

Step-by-step explanation:

Similar shapes have the same angles but different side lengths.

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2 years ago
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fredd [130]

Answer:

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6 0
2 years ago
I need help with elimination with substitution. The equations are 3x+4y=19 and 3x+6y=33
olganol [36]
For elimination, multiply one whole equation by negative one (-1), then add or subtract according to your signs. After that, it will be a one-step equation.

3x + 4y = 19          3x + 4y = 19             3x + 4y = 19          -2y = -14        y = 7
3x + 6y = 33     -1 (3x + 6y = 33)          -3x - 6y = -33          -14 / -2

Then you would go back and substitute the value of (y) back into either equation and then solve for the remaining variable (x). Finally, use both values to make an ordered pair.

3x + 4y = 19          3x = -9          x = -3          (-3 , 7)
3x + 4(7) = 19       (-9 / 3)
3x + 28 = 19          

Good Luck

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Answer:

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