-3 = x/-9
To make this easier, I'll put it in normal numbers
(-3 = x/-9) -1
3 = x/9
Multiply both sides by nine to take out the division.
27 = x
Hope that this helped!
The domain would be -2, the x-intercept.
Sin(225)
225 degrees is in the 3rd quadrant. And in the third quadrant only tangent is positive, sin is negative.
For third quadrant, basic angle = 225 - 180 = 45
sin225 = - sin45
sin225 = - sin45 = -0.7071
sin 225° ≈ -0.7071
1/4 hour = 4 1/4 miles
Change to improper fraction:
1/4 hour = 17/4 miles
Multiply by 4 on both sides:
1 hour = 17 miles
Answer: Ramon rides his bike at 17 miles/hour.
