A. The discriminant is 81. The formula is b^2 - 4ac.
B. 2 answer and both will be rational due to the fact that the discriminant is a perfect square.
C. Solutions are 1/2 and -4. You can find using the quadratic formula.
Answer:
(-31,15)
Step-by-step explanation:
Rotating 90 degrees clockwise is very simple:
(a,b) 90 degrees= (-b,a)
Very simple.
Just switch sides and add negative to the first term.
Answer:
2.b
3.a
4.c
Step-by-step explanation:
hope it helps you
Look at the attachment. Hope it helps!
Answer:
a = 6.34, b = 2.64
Step-by-step explanation:
used stat function on calculator
