What is the focus of a parabola with equation y^2=4x

Focus = (1,0)

Step-by-step explanation:

The equation of parabola with vertex at origin is given by:

          ....[1]

where, 4a is the width of the parabola and a is positive.

Focus = (a, 0)

Given the equation:

on comparing with [1] we have;

4a = 4

Divide both sides by 4 we have;

a = 1

Focus = (1, 0)

Therefore, the focus of a parabola with equation is, (1, 0)

hope this !

step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

16.9 times 2.85

step-by-step explanation: