Easy quick stuff pls

evaluate 11 - 19 - 4 - (-8).

-20
-4
-26
-2

Evaluate cos2θ for cosθ = square root of 3/2

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit