Answer:
139 ft
Step-by-step explanation:
So the zip line forms a right triangle. The height of the triangle is 150 ft, and the opposite angle is 40°. The horizontal distance covered by the zip liner can be found with trigonometry, specifically with tangent.
tan 40° = 150 / x
x = 150 / tan 40°
x ≈ 179 feet
But this includes the 40 ft long body of water, so the amount of ground covered is:
179 ft - 40 ft = 139 ft
The 2nd answer
looking at the graph
when she was born she was 0 years old. and at the 0 year, the height is at 30 in
49% = 49/100 = this can not be simplified anymore
Answer: 49/100
You divide -6 and -3
Because the exponents are both negative, you make them positive and change the position (the exponent which is at the denominator is now at the numerator and viceversa)
You divide the exponents (so 2-1)
2*10 = 20
