Answer:
two real, unequal roots
Step-by-step explanation:
y is definied as y = 3x - 1. Substitute 3x - 1 for y in xy = 9, obtaining:
x(3x - 1) = 9. Then:
3x^2 - x - 9 = 0. In this quadratic, the coefficients are a = 3, b = -1 and c = -9.
Calculating the discriminant b^2 - 4ac, we get (-1)^2 - 4(3)(-9), or 1 + 108, or 109. Because the discriminant is positive, we have two real, unequal roots.
Answer:
Nathan: 2x+30
Olivia: 4x+15
Step-by-step explanation:
x is the number of weeks
Nathans account is as follows
2x+30
(2 dollars a week plus the 30 dollars already there)
Olivia's account is as follows
4x+15
(4 dollars per week plus the 15 already in there)
Answer:
the answer would be 22 miles per gallon
Step-by-step explanation:
if we solve it as 330/15 since Kyle drove 330 miles on 15 gallons, our answer would end up being 22 miles per gallon
Answer:
1st, 3rd, 5th box
Step-by-step explanation:
true:
68.012
68.006
68.049
not true:
680.2
68.3
68.1
Answer:
4. this would be a positive correlation
5. this has no correlation
Step-by-step explanation:
I hope that was the answer you are looking for
