Select alche correct answers. If the measure of angle is 7pi/4. which statemens are true? which statements are true Tan(0)=-1 cos(0)=-pi/2 The measure of the reference angle is 60° The measure of the reference angle is 45° sin(0)=-square root2/2 The measure of the reference angle is 30°​

step-by-step explanation:

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation:

hello,

as   long as they add up to 180 its correct.