Answer:
It will take her 3 hours to read 120 pages.
Step-by-step explanation:
The number of pages read(y) after x hour can be modeled by a linear function in the following format:
In which a is the number of pages read per hour and b is the initial number of pages read.
A straight line goes through (0, 0)
This means that when 
So
(0.5, 20)
When 
So
The function in:
According to the graph, which statement must be true?
It will take her 2 hours to read 60 pages.
Less than 2 hours for 60 pages, so this is false.
It will take her 3 hours to read 120 pages.
This statement is true.
It will take her 4 hours to read 180 pages.
More than 4 hours to read 180 pages. So false.
It will take her 5 hours to read 210 pages.
More than 5 hours to read 210 pages. So false.
Answer:
Step-by-step explanation:
Given
![A = \left[\begin{array}{cc}-2&6\\3&5\end{array}\right]](https://tex.z-dn.net/?f=A%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D-2%266%5C%5C3%265%5Cend%7Barray%7D%5Cright%5D)
Required
Determine the determinant
For a two by two matrix, A such that:
![A = \left[\begin{array}{cc}a&b\\c&d\end{array}\right]](https://tex.z-dn.net/?f=A%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Da%26b%5C%5Cc%26d%5Cend%7Barray%7D%5Cright%5D)
The determinant |A| is:
So, in
The determinant is:
Let's do this step by step:
Our objective is to find out x.
First, we have to take the '-3' to the right side, and put it next to the 11. When we do this its operation reverses, so it becomes 11 + 3, which is 14.
So we have 9x > 2x + 14.
Then we do the same to the numbers with X, but this time we take the number from the right side to the left. So 2x to the left (reversed) becomes 9x-2x which is 7x.
So 7x > 14
Now let's simplify, 14/7 = 2
so x = 2
Answer:
Step-by-step explanation:
0.001500 Kilograms (kg)
Answer:
question 11 - $20,020.83
question 13 - $97,200
Step-by-step explanation:
I=prt
I = 450 x 6% x 8
I=prt
I= 116.25 x 1550 / 9
