1. He owes you 23 dollars and his change will be 7 dollars.
2, She owes you $6.50 and her change is $3.50 .
Answer:
Option C is the correct answer.
Step-by-step explanation:
The height, h(t), of the ball can be modeled as a function of time, t, by the equation h(t) = -16t² + 40t + 20
When the ball hits the ground, we have h(t) = 0
h(t) = -16t² + 40t + 20 = 0
![t=\frac{-40\pm \sqrt{40^2-4\times (-16)\times 20}}{2\times (-16)}=\frac{-40\pm \sqrt{2880}}{-32}\\\\t=\frac{-40\pm 53.67}{-32}\\\\\texttt{t = 2.93s or t = -0.43s}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B-40%5Cpm%20%5Csqrt%7B40%5E2-4%5Ctimes%20%28-16%29%5Ctimes%2020%7D%7D%7B2%5Ctimes%20%28-16%29%7D%3D%5Cfrac%7B-40%5Cpm%20%5Csqrt%7B2880%7D%7D%7B-32%7D%5C%5C%5C%5Ct%3D%5Cfrac%7B-40%5Cpm%2053.67%7D%7B-32%7D%5C%5C%5C%5C%5Ctexttt%7Bt%20%3D%202.93s%20or%20t%20%3D%20-0.43s%7D)
Negative time is not possible, so time = 2.93 seconds.
Option C is the correct answer.
Answer:
1000 in
Step-by-step explanation:
Given
The dimension of the small cube is 1\ in.1 in.
No of the cubes is 10^6106
If the small cubes are arranged on the floor
The area of the cubes is
\Rightarrow 10^6\times 1^2\ in.^2⇒106×12 in.2
Answer:
I would say A
Step-by-step explanation:
They are the same size, and the only angles that would be the same would be the original and their prime since it's only a reflection.