The
symbol means intersection, so everything that is in both sets, and the
symbol means union, so the two sets combined.
So the answer is A.
Answer:
the answers are B,D and E
Step-by-step explanation:
Answer:
y = 9x - 15
Step-by-step explanation:
The given y = 9x - 5 is already in slope-intercept form. Any line parallel to this one has an equation that looks exactly the same except for the constant term. Call the new constant term 'C.'
Start with y = 9x - 5 and substitute the coordinates of the given point (-1, 6):
6 = 9(-1) + C, or
6 + 9 = C, or
C = 15
Then the equation of the line that passes through (-1, 6) and is parallel to y = 9x - 5 is
y = 9x - 15
A number
, where
are distinct prime numbers, has
divisors.
We know that
has 7 divisors. 7 is a prime number, so among the numbers
there is only one that is equal to 7.
So,
That means
where
is a prime number.
, therefore the
has
divisors.
You can use many crash course and Khan Academy is great too. <span />