Answer:
2y^4√5
Step-by-step explanation:
Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.
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Step-by-step explanation:
x = number of novels
y = number of dictionaries
x = 8y
88x + 208y = 13680
now, using the identity of the first equation in the second equation gives us
88(8y) + 208y = 13680
704y + 208y = 13680
912y = 13680
y = 13680/912 = 15
x = 8y = 8×15 = 120
so, there were 120 novels and 15 dictionaries sold.
Answer:
200n - 162.
Step-by-step explanation:
first trem a1 = 38
common difference d = 200
nth term = a1 + (n-1(d
= 38 + 200(n-1)
= 200n - 162
Answer:
y = 1/3x - 10/3
Step-by-step explanation:
Perpendicular lines have slopes that are negative reciprocals of one another so m = -1/3
Given (-1,-3)
y = mx + b
-3 = -1/3(-1) + b
-9/3 = 1/3 + b
b = -10/3
so y = 1/3x - 10/3
Answer:
Steps below
Step-by-step explanation:
(3/x²)+ 2/x =1 (x ≠ 0)
(3/x²) + 2x/x² = 1
(3 + 2x) / x² = 1
3 + 2x = x²
x² - 2x - 3 = 0
(x + 1) (x - 3) =0
x = -1 or x = 3
