It has no perfect square factors, unless you count 1 = 1^2. That's sort of a degenerate case we don't usually count, since every integer has that factor. We would usually say that 1290 is a square-free integer. Hope this helps!!

5 0

3 years ago

Estimate a 25% tip on a bill of $68.28 by first rounding the bill amount to the nearest ten dollars.

diamong [38]

Answer:

first round 68.28 to 70.00 then get 25% which is 17.50 so the tip would be 17 dollars

Step-by-step explanation:

7 0

2 years ago

Solve the system of equations below using the inverse of matrix

amid [387]

Answer:

(x, y) = (4,-3)

Step-by-step explanation:

...............

8 0

2 years ago