Solve this equation: 5x^4+ 50x^2 +80=0
1 answer:
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Answer:
∠B = 54 °
Step-by-step explanation:
If sum of two angles add up to 180°, then the two angles are called supplementary.
m∠A + m ∠B = 180°
7x + 7 + 4x - 14 = 180
7x + 4x + 7 - 14 = 180
11x - 7 = 180
11x = 180 + 7
11x = 187
x = 187 ÷ 11
m∠B = 4x - 14
= 4*17 - 14
= 68 - 14
Answer:
Domain : 0 ≤ x ≤ 8
Range : 5450 ≤ f(x) ≤ 6588.65
Step-by-step explanation:
Expression representing the money Samantha collected after x years is,
f(x) =
Time 'x' duration for the investment starts from t = 0 and ends at 8 years, so the domain of the given function will be,
Range : 0 ≤ x ≤ 8
Money collected in the fund from 0 to 8 years is,
f(0) =
= $5450
f(8) =
= $6588.6
Therefore, range of the graphed function will be,
Range : 5450 ≤ f(x) ≤ 6588.65