Answer:
(3,1)
Step-by-step explanation:
The answer is (3,1) because that's where both lines intersect.
Answer:the 3rd one
Step-by-step explanation:
Answer:
• discriminant: 73
• # of real solutions: 2
Step-by-step explanation:
Comparing the equation ...
2x^2 -9x +1 = 0
to the generic form ...
ax^2 +bx +c = 0
we find the coefficient values to be ...
a = 2; b = -9; c = 1
That makes the value of the discriminant, (b^2 -4ac), be ...
(-9)^2 -4(2)(1) = 81 -8 = 73
Since the discriminant is positive, the number of real solutions is 2.
0.4*(-5)+6.1=-2.0+6.1=8.1
Answer:
Shaida is 21 and we know that Nasreen is 6
So after x years Shaida will be twice as old as Nasreen, which means that :
21 + x = 2 ( 6 + x )
21 + x = 12 + 2x
9 = x
So after 9 years is the answer