Answer: 4. 78,020,008 4. Seventy-eight million, twenty thousand, eight
5. 20,011,012 5. 20,000,000 + 11,000 + 12
6. 50,000 7. 900 8. 70,000,000 9. 30,000,000
Step-by-step explanation:
Answer:
option C
![f(x)=-\sqrt{x+3}+8](https://tex.z-dn.net/?f=f%28x%29%3D-%5Csqrt%7Bx%2B3%7D%2B8)
Step-by-step explanation:
we have
![f(x)=-2\sqrt{x-3}+8](https://tex.z-dn.net/?f=f%28x%29%3D-2%5Csqrt%7Bx-3%7D%2B8)
using a graphing tool
see the attached figure N![1](https://tex.z-dn.net/?f=1)
The range is the interval--------> (-∞,8]
![y\leq 8](https://tex.z-dn.net/?f=y%5Cleq%208)
case A) ![f(x)=\sqrt{x-3}-8](https://tex.z-dn.net/?f=f%28x%29%3D%5Csqrt%7Bx-3%7D-8)
using a graphing tool
The range is the interval--------> [-8,∞)
![y\geq -8](https://tex.z-dn.net/?f=y%5Cgeq%20-8)
case B) ![f(x)=\sqrt{x-3}+8](https://tex.z-dn.net/?f=f%28x%29%3D%5Csqrt%7Bx-3%7D%2B8)
using a graphing tool
The range is the interval--------> [8,∞)
![y\geq 8](https://tex.z-dn.net/?f=y%5Cgeq%208)
case C) ![f(x)=-\sqrt{x+3}+8](https://tex.z-dn.net/?f=f%28x%29%3D-%5Csqrt%7Bx%2B3%7D%2B8)
using a graphing tool
The range is the interval--------> (-∞,8]
![y\leq 8](https://tex.z-dn.net/?f=y%5Cleq%208)
case D) ![f(x)=-\sqrt{x-3}-8](https://tex.z-dn.net/?f=f%28x%29%3D-%5Csqrt%7Bx-3%7D-8)
using a graphing tool
The range is the interval--------> (-∞,-8]
![y\leq -8](https://tex.z-dn.net/?f=y%5Cleq%20-8)
Multiply 60 by .75, which gives you 45 Points. The answer is B.