2x(1+3)=7 is the factored form
You only posted one graph and that graph does not pass the vertical line test.
No, they cannot be determined as congruent.
The SAS rule of congruency requires that two sides and the angle BETWEEN them are congruent. However, the angle between them is not specified as congruent.
There exists no SSA (side-side-angle) rule of congruency that would help prove the pair of triangles congruent. Thus, we have insufficient information to determine them as congruent.
What is the rule for the linear function shown in the graph?
f(x) = 2x - 4
There are 27000 possible combinations
when combining 2 or more separate possible outcomes in which numbers can be repeated, you multiply each possibility together. Each of the 3 dials has 30 possible positions on its own, so the number of combinations for all three is:
30 × 30 × 30 = 27000