Answer:
A: -11
B: Two complex solutions
Step-by-step explanation:
The discriminant of this equation is 3^2-20=9-20=-11. Since the discriminant is negative, its square root will be an imaginary number, and there will be two complex solutions. Hope this helps!
Answer:
F(-1/4)=4x-18
F(-1/4) = 4 (-1/4) - 18
F(-1/4) = -19
Step-by-step explanation:
You would have to replace the given numbers and just do the math
Answer:
Step-by-step explanation:
7.5% would be 405. Honestly to find it quickly, i took 10% of 5400,which is 540 and divided that by 4 to get 135 and multiply that by 3 to get 7.5%, which is 405 increase. to get the money total add 405 to 5400 to get 5805
Answer: 17
Step-by-step explanation:
78 x 9
=702
702 -719
= 17
