I believe your answer should be 105x squared-1475x+70
sorry i'm not really sure how to put the little two above the first x but my answer is mathematically correct.
Answer:
The first one.
Step-by-step explanation:
The first one. 7x² times 2x = 14x³
Answer:
B
Step-by-step explanation:
i cant explan for this quasion but i am not understand this quation
Answer:
0=0
Step-by-step explanation:
Add zero
0+2=2
2=2
Subtract 2 from both sides of the equation
2=2
2−2=2−2
Simplify
Combine like terms
2−2=2−2
0=2-2s
or
0=2s-2
0=0
Answer 0=0
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.