Answer:
150 by 100
Step-by-step explanation:
Answer:
x =(10-√112)/2=5-2√ 7 = -0.292
x =(10+√112)/2=5+2√ 7 = 10.292
Answer:
um, can you make that a bit clearer thanks! (:
Step-by-step explanation:
Answer:
4n ≤ 32
/4 /4
n ≤ 8, he could run less than 8 or just 8 laps,
so possible laps:
1, 2, 3, 4, 5, 6, 7, or 8 laps he could've ran.
The height attained by the arrow is modelled as,

Given that the initial height is 20 ft and the initial velocity is 179 ft per second,

Substitute the values,

When the arrow hits the ground its height will become zero,

Applying the quadratic formula,
![\begin{gathered} t=\frac{-(-179)\pm\sqrt[]{(-179)^2-4(-16)(20)}}{2(-16)} \\ t=\frac{179\pm\sqrt[]{33321}}{-32} \\ t=\frac{179\pm182.54}{-32} \\ t=\frac{179+182.54}{-32},t=\frac{179-182.54}{-32} \\ t=-11.298,t=0.1106 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20t%3D%5Cfrac%7B-%28-179%29%5Cpm%5Csqrt%5B%5D%7B%28-179%29%5E2-4%28-16%29%2820%29%7D%7D%7B2%28-16%29%7D%20%5C%5C%20t%3D%5Cfrac%7B179%5Cpm%5Csqrt%5B%5D%7B33321%7D%7D%7B-32%7D%20%5C%5C%20t%3D%5Cfrac%7B179%5Cpm182.54%7D%7B-32%7D%20%5C%5C%20t%3D%5Cfrac%7B179%2B182.54%7D%7B-32%7D%2Ct%3D%5Cfrac%7B179-182.54%7D%7B-32%7D%20%5C%5C%20t%3D-11.298%2Ct%3D0.1106%20%5Cend%7Bgathered%7D)
Since time cannot be negative, we have to neglect the negative value.
Thus, it can be concluded that the arrow will hit the ground after 0.1106 seconds approximately.