Answer: C
Step-by-step explanation:
However, the angle has to have positive measure, so:
Step-by-step explanation:
it is a multiple of 21.
the highest common factor of 2 numbers is the longest combination of prime factors they have in common.
the prime factors of 21 are simply
3×7
if another number A shares this as the longest combination of prime factors, that means it contains 3×7 itself in its prime factors.
and that means this number A can only be a multiple of 3×7 (= 21), as other prime factors present would be the factor of 21.
Because it is normally set to only find real roots, not complex roots
if you are smart, you can use the factor function and use your head to find those roots
Answer:
u forgot to write the equations
You wanna cross out numbers if they can both divide by the same number. then multiply the numbers in the same row together
