Answer:
x = 9 + 6i or x = 9 - 6i
Step-by-step explanation:
x² - 18x + 117 = 0
Complete the square and solve:
(x - 9)² - 81 + 117 = 0
(x - 9)² + 36 = 0
(x - 9)² = -36
x - 9 = ±sqrt(-36)
x - 9 = ±sqrt(-1).sqrt(36)
i = imaginary number = sqrt(-1)
x - 9 = ±6i
x = 9 ± 6i
There are no real solutions, only imaginary ones
9 + 6i and 9 - 6i
Answer:
y = -4x + 10
Step-by-step explanation:
The proper formula is:
y = mx + b
Answer:
24a^9 b^11
Step-by-step explanation:
The pair of numbers that would have 20 as their lcm is 4 and 5
Answer:
HE WAS LAST SEEN HEADING NORTH
Step-by-step explanation:
360: A
25×10×40 = 10000: I
(15×10.5×20)/450 = 7: W
(35×16×50)/800 = 35: S
3168/(22×9) = 16: N
cuberoot(64) = 4: R
6.5×15×8.5 = 828.75: G
4×2×3 = 24: E
3885/(18.5×15) = 14: H
3³ = 27: T
½ (7×9×12) = 378: L
30×20×11 = 6600: D
3600/(2×4÷5) = 90: O
