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kari74 [83]
2 years ago
15

Some cones are mathematically similar. Two of the cones have radii in the ratio 2:3. Write down the ratio of their masses.

Mathematics
1 answer:
xenn [34]2 years ago
7 0

Answer:

8:27.

Step-by-step explanation:

The ratio of their masses will be equal to the ratio of their volumes, assuming they are both of the same uniform density.

So it will be 2^3:3^3

= 8:27.

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Work out m and c for the line: y=3x
Tpy6a [65]

Answer:

m = 3, c = 0

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 3x , or y = 3x + 0 ← is in slope- intercept form

with m = 3 and c = 0

4 0
2 years ago
The angle 01 is located in Quadrant III, and cos(01) = -30/13
larisa [96]

Answer:

<h2>sin(01) = -32.70/13</h2>

Step-by-step explanation:

Given cos(01) = -30/13 where angle 01 is located in quadrant III. In the third quadrant, both cos and sin are negative. only tan is positive.

To calculate sin(01), we will apply the trigonometry expression as shown below;

cos(01) = -30/13

According to SOH CAH TOA;

cos(01) = adjacent/hypotenuse = -30/13

sin(01) = opposite/ hypotenuse

To get the hypotenuse, we will use the pythagoras theorem

hyp^{2}=opp^{2}+adj^{2}   \\opp^{2}=  hyp^{2}-adj^{2}\\opp^{2}= 13^{2} -(-30^{2} )\\opp^{2} = 169+900\\opp^{2}=1069\\opp = \sqrt{1069} \\opp = 32.70\\

sin(01) = 32.70/13

Since sin is also negaitve in the third quadrant, the value of

sin(01) = -32.70/13

01 = cos^{-1}- 30/13

8 0
2 years ago
Use the quadratic formula to find the solutions to the quadratic equation
777dan777 [17]

Answer:

It will have complex and different roots.

Step-by-step explanation:

The solution is attached in the image below:

4 0
3 years ago
Read 2 more answers
-2x-9y=-25 -4x-9y=-23
goldfiish [28.3K]
So to start this off you would add 9y to both sides of the equation and then you regroup it which gives you <span>−2x=−25+9y and then you regroup the terms and get -2x=9y-25 and then you dived both sides by -2 and get x=9y-25/-2 then you simplify and so on 

but at the end you should get x=-1 and y =3
</span><span><span>




</span></span>
8 0
3 years ago
Simplify:<br><br> Need help ASAP ty
enyata [817]
The first one
11x - 2
4 0
3 years ago
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