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zheka24 [161]
3 years ago
12

Find all real and complex roots of the equation below x^4-81=0

Mathematics
1 answer:
Pepsi [2]3 years ago
8 0

x^4-81=0 \\ (x^2-9)(x^2+9)=0\\ (x-3)(x+3)(x^2+9)=0\\ x=3 \vee x=-3 \vee x=3i \vee x=-3i

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A.) 10<br> B.) 25<br> C.) 20<br> D.) 15
Sergio [31]
2x+4=10
2x=6
x=3
2(3)+4= 10
(plus, on parallelograms like that, parallel sides are equal to each other)
7 0
3 years ago
Graph<br> Y=3/4x - 1/2 <br> Pleaseeeee help!!
Nimfa-mama [501]
I’m not 100% sure kind of a guess but I would x=2/3. Good luck
6 0
3 years ago
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Find the slope of the line passing through the points (-2, 9) and (-10, 33).
Nina [5.8K]
Slope = rise / run = Δy / Δx = (y2 - y1) / (x2 - x1) = [33 - 9] / [ (-10 - (-2)]

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Answer: - 3
8 0
3 years ago
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wlad13 [49]

Answer: Point F corresponds to point F'

Step-by-step explanation: I just took this test and made a 100%

5 0
3 years ago
Read 2 more answers
The average rate of change of f(x)=3x+9 is 9. true or false?
MA_775_DIABLO [31]
The rate of change is the slope.
f(x) is the same as y...
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y = mx + b
y = 3x + 9....so the slope or rate of change is 3...not 9...so answer is false
7 0
3 years ago
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