Write the number in standard form 7.5 × 10^9

7.5 x 10⁹

For standard form, move the decimal 9 places. Since the 9 is positive, move it to the right. (If it was negative 9, you would move it to the left)

7,500,000,000

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)

what are the