Answer:
3 x 15
Step-by-step explanation:
aren't you trying to figure out what the expression is simplified?
Answer:
110
Step-by-step explanation:
longest side would by 40 so 40 - 20 = 20. Add all the sides up 25+25+40+20=110
Answer:
The graph in the attached figure
Step-by-step explanation:
we have

This is the equation of a vertical parabola open upwards
The vertex is a minimum
The vertex is the point (1,2)
The y-intercept is the point (0,3)
The function does not have x-intercepts
see the attached figure
Let:
x = Chemistry textbooks sold
y = Physics textbooks sold
The textbook store sold a combined total of 260, so:

The number of chemistry books sold was three times the number of physics textbooks sold, so:

Let:

Replace (2) into (1):

Replace the value of y into (2):