The line is going down (from left to right), so it has a negative slope
horizontal lines have zero slope
vertical lines have undefined slope
lines going up (from left to right) would have positive slope
This is going down so it is Choice B
Answer:
13 sep-Low temp,26°,Windy,Retreating monsoon
14 sep-Low temp, 24°,Windy,Retreating Monsoon
15 sep -Low tenp,22°
16 sep
17 sep
18 sep
Answer:
Option B. ![9x^{3}-2x^{2}-4x-2](https://tex.z-dn.net/?f=9x%5E%7B3%7D-2x%5E%7B2%7D-4x-2)
Step-by-step explanation:
we have
![7x^{3}-2x^{2} +5](https://tex.z-dn.net/?f=7x%5E%7B3%7D-2x%5E%7B2%7D%20%2B5)
![2x^{3}-4x-7](https://tex.z-dn.net/?f=2x%5E%7B3%7D-4x-7)
Adds the polynomial
Group terms that contain the same variable
![(7x^{3}+2x^{3})-2x^{2}-4x+(5-7)](https://tex.z-dn.net/?f=%287x%5E%7B3%7D%2B2x%5E%7B3%7D%29-2x%5E%7B2%7D-4x%2B%285-7%29)
Combine like terms
![9x^{3}-2x^{2}-4x-2](https://tex.z-dn.net/?f=9x%5E%7B3%7D-2x%5E%7B2%7D-4x-2)
<em>Janice's error was </em>
so
instead
and
instead
we are given
![2[(7-4)^4/9]](https://tex.z-dn.net/?f=%202%5B%287-4%29%5E4%2F9%5D%20)
we can use PEMDAS rule
P: Parenthesis
E: Exponent
M: Multiplication
D: Division
A: Addition
S: Subtraction
Step-1: Firstly we simplify parenthesis
![=2[(3)^4/9]](https://tex.z-dn.net/?f=%20%3D2%5B%283%29%5E4%2F9%5D%20)
step-2: Solve exponent
![=2[81/9]](https://tex.z-dn.net/?f=%20%3D2%5B81%2F9%5D%20)
Step-3: Divide
![=2[9]](https://tex.z-dn.net/?f=%20%3D2%5B9%5D%20)
Step-4: Multiply
![=2*9](https://tex.z-dn.net/?f=%20%3D2%2A9%20)
...........Answer