Answer:
-8x+3
Step-by-step explanation:
Combine like terms
-3x-5x=-8x
-1+4=3
Ratio is: 8:7
Because there are 8 girls against 7 boys
The equation for a circle is x^2+y^2=r^2 so the radius is the square root of 16 which is 4. Then you take y-2 and set it equal to 0. This gives you y=2 as the y coordinate of the center. You then set x+4 equal to 0 which gives you x=-4 which is the x coordinate of the center. So the radius is 4 and the center is at (-4,2)
Answer:
x^2 - 16x +60
Step-by-step explanation:
X^2 -17x + 70 + x -10
x^2 -17x + x +70 - 10
=
Answer: 4in
Step-by-step explanation:
Volume of a cylinder = πR²H
Volume of a cone = 1/3πr²h
πR²H = 1/3πr²h
π is very common so it could be cancelled, so the equation now becomes
R²H = 1/3r²h
3R²H = r²h
Now substitute for the values
h = 3 x 2² x 3
--------------
3²
= 9 x 4/9
= 4in.
Therefore, the height of the cone
h = 4in.