Answer:
(n -7)(4n + 8) = 0
Step-by-step explanation:
(a -b)² = a² - 2ab + b²
(2n - 5)² = 81
(2n)² - 2*2n*5 + 5² = 81
4n² - 20n + 25 = 81
4n² - 20n + 25 - 81 = 0
4n² - 20n - 56 = 0
4n² - 28n + 8n - 8*7 = 0
4n*(n -7) + 8*(n - 7) = 0
(n -7)(4n + 8) = 0
3x-5=1
+5 +5
3x=6
3 3
X= 2
Answer:
∠ DTR = 109°
Step-by-step explanation:
∠ DQT and ∠ TRS are alternate angles and are congruent, then
∠ TRS = 68°
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ DTR is an exterior angle of Δ TRS , then
∠ DTR = 41° + 68° = 109°
The general form of the equation is <span>acot (bx−c)+d</span><span> to find the variables used to find the amplitude, period, phase shift, and vertical shift where </span><span>a=1, </span><span>b=</span><span>π/4, </span><span>c=0 and </span><span>d=0
Period is pi/b or equal to 4.
The vertical asymptote is 4pi n where n is integer.
Attached is the sketch of the graph
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