1. Right
2. I forgot how to do that
3. X is 45
4. Y is 45
Answer:
c
Step-by-step explanation:
that's the answer sjakskkeieiidix
First you need to know that the internal angles of a triangle always equals 180°. Therefore:
15+45= 90°
Then since the angles should equal 180, you do:
180-90=90
So the missing angle equals 90°
Answer:
Step-by-step explanation:
A - at the 10th month the membership cost is the same
B - I would choose Rita's gym because after 12 months the cost is $10 less.
Answer:
B
Step-by-step explanation:
f(x) = x²+49 , rewrite the equation
x² +7² =0 , to find the roots make f(x) =0 and subtract 7² from both sides
x² = -7², square root both sides
√x² =√-7², consider √-1 =i
x= ±7i
the roots are -7i and 7i
