Volume of a cone = [pi*r^2*h ]/ 3 where r is the radius and h is the height
Surface Area of a cone = ( pi * r * √[r^2 + h^2] ) = pi * r * l where l is the slant height = √[r^2 + h^2]
Well "10 doubled" = 20
And.......assuming by "times," you mean "multiplication," we have
20 x 7 = ??????
In a 45-45-90 triangle....one leg = 13/√2 units = about 9.2 units
Distance / Rate = Time .....so....
11km / [10 km / hr] = 1.1 hr = 1hr 6 minutes
Notice that
7^20 ends in 01
So
(7^20)^5 = 7^100 also ends in 01
And
7^2000 = (7^100)^20 will also end in 01
And 7^14 ends in 49
So 7^2014 = 7^2000 x 7^14 = .........01 x ........49
Will also end in 49
Thanks, Melody.....
Using the Pythagorean Theorem, this will give you your answer
√[25^2 + 6^2] = ????
Vc = pi* r^2 * h = pi * (3 in) ^2 * (6 in) = pi * 9 in^2 * 6 in = about 170 in^3
(10000/12566) x 360° = about 286.49°
cos-1(.93) = about 21.565° and about (360 - 21.565)° = 338.435° on the interval [0, 360 ]
