Answer: x = 3/2 y = 9/2
Step-by-step explanation:
Subtract
5
y
Replace all occurrences of x
from both sides of the equation.
Answer:
C. 3x^2 + 2x + 1
Step-by-step explanation:
A. 12^2 - (4*3*12) = 0 (there's one solution.)
B. (-3)^2 - (4*3*-18) = 255 (there're 2 real solutions.)
D. 3^2 - (4*0*-3) = 9 (there're 2 real solutions.)
C. 2^2 - (4*3*1) = -18 ✅✅
if b^2 - 4ac = negative then we can say that there isn't any real solution for the equation.
Answer:
C) cos A=sin B
Step-by-step explanation:
A is complement of B: A+B=90⁰
Sin(A)=sin(90-B)=cos(B)
Cos(A)=cos(90-B)=sin(B)
So c)
