Answer: i think it is 680 or 340, but my gut says 680...
Step-by-step explanation: 4 x 10 = 40 x 17 = 680
Answer:
r=-20/31
Step-by-step explanation:
1)divide the numbers
2) subtract 8 from both sides of the equation
Answer:
0.0365 pounds per dollar
$2.79 per pound
$2.79 per pound is typically used
Step-by-step explanation:
13.95/5 = $2.79 per pound
5/13.95 = 0.0365 pounds per dollar
1a) Possible rational roots will be of the form
±{divisor of 10}/{divisor of 4}
Divisors of 10 are {1, 2, 5, 10}
Divisors of 4 are {1, 2, 4}
Then possible rational roots are
{±1/4, ±1/2, ±1, ±5/4, ±2, ±5/2, ±5, ±10}
1b) Your answer is correct.
2) One additional root will be the conjuate of the given complex root.
5 -3i
3) If one root is 5 -√7, another will be 5 +√7. Then your polynomial is
P(x) = (x -(5 -√7))*(x -(5 +√7)) = (x -5)^2 -(√7)^2
P(x) = x^2 -10x +18
