PEMDAS- Parenthesis, Exponent, Multiplication, Division, Addition, Subtraction.
F(x) = 7x − 13
To find f(-x) , just replace x with -x:
f(-x) = 7(-x) - 13
f(-x) = -7x -13
Answer:
B
Step-by-step explanation:
I think the answer would be B=7.9 17.1 20.7 32.6
sorry if incorrect
Answer:
-2
Step-by-step explanation:
In the picture
Answer:
Total number of points in the test = 100
Total number of items in the test = 40
Let number of items of 2 points be x and number of items of 3 points be y.
Now, using the given information the situation can be represented by using the following equations :
⇒ x + y = 40 .........(1)
⇒ 2x + 3y = 100 .........(2)
The matrix equation is :
By solving the equation (1) and equation (2), we get :
Solution : x = 20 and y = 20