The value of 5 ∙ 23 is 115.
The small dot is typically used as a multiplication symbol. When we multiply these two numbers the result is 115.
Try this solution:
dx/siny=dy/cos2x;
sinydy=cos2xdx;
cosy=-1/2 sin2x+C.
Answer:
I am pretty sure your answer is n because of the font i think.
The volume of a cone is

where r = radius and h = height. If the cone has a volume of 94.2 cm³ (I assume you didn't mean m³ because that would be ridiculously huge) and a height of 10 cm, we can plug these values into the formula to find the radius. Don't do any rounding.

Now we know that's going to be the radius of our <em>new </em>cone as well since we're keeping the diameter the same. The volume is going to be double 94.2 which is 188.4. Let's solve for the height.
Answer: x + 30 + 90= 180(sum of angles on a straight line)
x= 180-120
x=60