The discriminant is part of the quadratic formula which is b²-4ac.
So, in this case,
b²-4ac = (-9)(-9) - 4(7)(-8) = 305
Answer:$2.7 dollars per piece
Step-by-step explanation: Divide 113.40 by 42
Answer:
0.78 euros per dollar
Step-by-step explanation:
If 35 euros=$45.00, then every dollar that he has is equivalent to (35/45) euros=35/45=0.78 euros per dollar
(I found the answer from Nonicorp1 on Brainly)
Answer: x - 5
Step-by-step explanation:
Since, the area of the rectangle = 
Length of the rectangle = x+5
Let the width of the rectangle = b
Thus, the area of the rectangle = 
⇒ 
⇒ 
⇒ 
Therefore, the expression that shows the width of the rectangle = x-5
IQ scores and GPAs are positively correlated with a strong relationship. Similarly, IQ and SAT scores are positively correlated with a strong relationship. Because the variable IQ is in both sets, there is likely to be a relationship between the other two variables, GPAs and SAT scores.
