Answer:
21
Step-by-step explanation:
Answer:
perpendicular (90 deg to each other)
Step-by-step explanation:
Answer:Yes
Hope this helps!
Step-by-step explanation:
OK 33*76= 2508 if that is your question if its not tell me and i will see what i can do
Answer:

Step-by-step explanation:
Subtract the right side of the given equation to put it into standard form:
4x² +8x -221 = 0
Then the coefficients used in the quadratic formula are ...
When these are filled into the form ...

the result is as shown above.