The answer is 3 because Pythagorean triplets consist of 3,4 and 5.
Answer:
Step-by-step explanation:
Simply plug each x value into the equation
1.
-3, 0, 3, 6, 8, yes it is linear, it doesn't have any exponents
2.
Same thing
5,2,1,2,5, it has exponenets and is not linear
Answer:
Step-by-step explanation:
The arithmetic sequence has the form:
When a=10.31, n=9, we substitute to get:
Similarly, when n=13 and a=11.71, we get:
Subtract equation 1 from equation 2 to get:
This implies that
Substitute into the second equation to get:
Solve to get
Hence the explicit formula is:
265÷106=2.5,2.5×,100=250, so before tax, the cost would be 250$
Answer:
the number is -7
Step-by-step explanation: