From most general to most specific
-4/5 is complex, real, rational, and negative
-2 is complex, real, rational, integer, negative
√15 is complex, real, irrational, positive
20/4=5 is complex, real, rational, integer, positive
try 6x-1....lemme know if it right or wrong... there is a sight called math-way that u can solve problems on...hope that was helpful
Answer: -2
Step-by-step explanation:
Because I know
The volume of a cone is 1/3 x pi x radius^2 x height, so after substituting the values, we have the equation 1/3 x 3.14 x 3^2 x 10, and we have 3^2 because the radius is half the diameter. First, 3^2 = 9, and 1/3 x 3.14 is approximately 1.046. 1.046 x 9 = 9.414, and lastly, 9.414 x 10 = 94.14. So the approximate volume of the funnel is 94.14.
That is adjacent and huptonuse
soh cah toah
so that is cos
cos(x)=15/21
so tehrfor
cos⁻¹(15/21)=x
where cos⁻¹ means inverse not 1/cos
use your calculator to evaluate cos⁻¹(15/21) in degrees
it is about 44.4153 degres, rounded to 44 degrees
