Answer:
-13
Step-by-step explanation:
Subtract 4 from both sides of the equation
+
4
=
−
9
+
4
−
4
=−
9
−
4
Simplify
Solution:
=
−
1
3
This is a linear programming question
if u want to solve the question, u can plot a graph(see the picture)
while x is n, y is r
and u may find out all of the integral values of x ,y in the required region, and sub them to 6450x+7150y=c, where c is the overall customers number, see which point give u the largest number of customers, u may get the ans then
Answer:
A, (2,5) and (-2,5) are reflections of each other on the x axis
The correct answer is ''A'' 3.4 = 3.4.