Find the value of integral ∫ C ( x 2 + y 2 + z 2 ) d s , where C is parmeterized by → r ( t ) = ⟨ 5 cos ( 5 t ) , 5 sin ( 5 t ) , t ⟩ for 0 ≤ t ≤ 2 . Round your answer to four decimal places.

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b