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.
Answer:
Step-by-step explanation:
The given equation is:
so, we first isolate the exponential form that contains the unknown "z" in the exponent, by dividing both sides by 0.5:
Now we bring the exponent down by applying the natural log function on both sides, and then solve for "z":
The answer to this equation is -24 because in each of the parentheses the product is -12 and negative numbers add to each other
