The Flipper Stop sells a variety of aquatic gear to swimmers, divers, and snorkelers. It currently sells a snorkel kit that is becoming quite popular.
The graph shows the projected revenue and cost for a glven month, based on the selling price of the snorkel kit.
y
+3,500
+3,000
+2,500
5 +2,000
(dollars
Total
+1,500
+1,000
+500

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

hi how are you doing today? if you ever need just tell me

step-by-step explanation: