Answer:
n=13/7
Step-by-step explanation:
2n+4+6*2=-9*2+8(2n+1)
2n+4+12=-18+16n+8
16+18=16n-2n+8
34=14n+8
34-8=14n
26=14n
n=13/7
Answer: The determinant must be zero.
Step-by-step explanation:
For a quadratic equation
a*x^2 + b*x + c = 0
The discriminant is:
D = b^2 - 4*a*c
and the solutions can be finded as:
If D > 0 we have two real solutions
if D = 0 we only have one solution, x = -b/2a
If D < 0 we will have comples solutions, as we will have a negative number inside a square root.
Knowing that for this equation we have only one solution, then we can know that the determinant must be equal to zero.
Well it has to be 3*2 = 6 square feet. Note: first convert 36 inches to 3 feet and 24 inches to 2 feet.
Answer:
C
Step-by-step explanation:
Answer:
3/5
Step-by-step explanation:
19/20 - 7/20
Since the denominator is the same we can subtract the numerators
12/20
Divide the top and bottom by 4 to simplify
12/4 =3
20/4 =5
The fraction becomes 3/5