Answer:
the formula for the volume of a cone is:
1/3hπr²
1/3×12m×π×8m=100.48m³
Area of a rectangle is A = L*W.
Here, A = 56 cm^2 (not 56 cm).
= (56 cm^2)=( L )( W ) = (x+2)*(2x-5) = 2x^2 - 5x + 4x - 10
Simplifying, 2x^2 - 5x + 4x - 10 = 56, or 2x^2 - x - 66 = 0.
Solve this using the quadratic formula:
-(-1) plus or minus sqrt ( (-1)^2 - 4(2)(-66) )
x = -------------------------------------------------------------
2(2)
Finish the work: find x. Most likely you will need to check both of the roots. Keep in mind that x will likely be a positive number.
Answer:
C 15
Step-by-step explanation:
The equation of a circle is in the form
(x-h)^2 + (y-k)^2 = r^2
where (h,k) is the center and r is the radius
Since our equation is
(x-6)^2 + (y+5)^2 = 15^2
(x-6)^2 + (y- -5)^2 = 15^2
So the center is (6,-5) and the radius is 15
Answer:
X = -3
Step-by-step explanation: