P⁴ - 81
p⁴ + 9p² - 9p² - 81
p²(p²) + p²(9) - 9(p²) - 9(9)
p²(p² + 9) - 9(p² + 9)
(p² - 9)(p² + 9)
(p² + 3p - 3p - 9)(p² + 9)
(p(p) + p(3) - 3(p) - 3(3))(p² + 9)
(p(p + 3) - 3(p + 3))(p² + 9)
(p - 3)(p + 3)(p² + 9)
The answer is (3).
Answer:
9 months
Step-by-step explanation:
17. y = -2/3x + 2
2/3x + y = 2
2x + 3y = 6 <==
18. y = 3x + 7....slope is 3. A parallel line will have the same slope.
y = mx + b
slope(m) = 3
(2,10)...x = 2 and y = 10
now sub and find b, the y int
10 = 3(2) + b
10 = 6 + b
10 - 6 = b
4 = b
so ur equation is : y = 3x + 4 <===
19. - 5x + 10y = 5
10y = 5x + 5
y = 1/2x + 1/2...slope is 1/2
y = -2x + 4....slope is -2
1/2 and -2 are negative reciprocals of each other....so ur lines are perpendicular
20. y = -1/4x + 8....slope is -1/4
-2x + 8y = 4
8y = 2x + 4
y = 1/4x + 1/2...slope here is 1/4
different slope and different y intercepts ...neither parallel or perpendicular
21. slope in the equation is 8/3. A perpendicular line will have a slope of -3/8.
y - y1 = m(x - x1)
slope(m) = -3/8
(-2,3)...x1 = -2 and y1 = 3
now we sub
y - 3 = -3/8(x - (-2) =
y - 3 = -3/8(x + 2) <==
Answer:
Step-by-step explanation:
We could invent set B: {-2, 1, 3, 5, 6, 10} and then correctly state tht set A is a subset of B, because {-2, 1, 3} is also found in A.