We are going to calculate D=b²-4ac , if it less than 0 , the equation will not have real solutions
1. D=4²+4*2*12 positive 2 real solutions
2. 2x²-x-12=0
D=1²+4*1*12 positive 2 real solutions
3. 2x²+4x+12=0
D=16-4*2*12=16-96=-80 no real solutions , correct answer C
4. D=16-4*2*0=16 two real solutions
Hos gross pay would be 11.75 x 40 = 470 dollars
Answer:
C: 1
Step-by-step explanation:
4x^2-4x=24
Subtract 24 from each side
4x^2 -4x -24 = 24-24
4x^2 -4x-24 =0
Factor out a 4 from each side
4(x^2 -x -6) =0
What 2 numbers multiply to -6 and add to -1
-3*2 = -6
-3 +2 =-1
4(x-3) (x+2) =0
4(x-3) (x- -2) =0
p=3 q =-2
p+q
3-2
1
Answer:
You are correct the answer is 48.
Step-by-step explanation:
To begin solving this question you would want to start simplifying it to make it more understandable.
3^3 is 27 which now gives you 27 + 1 x 9 +12 which makes it easier to solve.
Then you would take 1 x 9 = 9 (multiply left to right)
Now it is simple addition
27 + 9 + 12 = 48
Hopefully this helps.
Answer:
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Step-by-step explanation: