Answer:
x=3
Step-by-step explanation:
i helped my friend on this before but it was a word problem
To get the answer, divide 36 by 7. And the answer of that is 5.1428571428571429
If u round tha to the nearest 10th it’s 4.8
Answer:
x³ - (√2)x² + 49x - 49√2
Step-by-step explanation:
If one root is -7i, another root must be 7i. You can't just have one root with i. The other roos is √2, so there are 3 roots.
x = -7i is one root,
(x + 7i) = 0 is the factor
x = 7i is one root
(x - 7i) = 0 is the factor
x = √2 is one root
(x - √2) = 0 is the factor
So the factors are...
(x + 7i)(x - 7i)(x - √2) = 0
Multiply these out to find the polynomial...
(x + 7i)(x - 7i) = x² + 7i - 7i - 49i²
Which simplifies to
x² - 49i² since i² = -1 , we have
x² - 49(-1)
x² + 49
Now we have...
(x² + 49)(x - √2) = 0
Now foil this out...
x²(x) - x²(-√2) + 49(x) + 49(-√2) = 0
x³ + (√2)x² + 49x - 49√2
Bottom Side Surface Area:
(24 inches + 24 inches + 24 inches) * (30 inches)
= 72 inches * 30 inches
= 2160 inches squared
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Top Side Surface Area:
24 inches * 30 inches
= 720 inches squared
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Length of the diagonal (D) which needs to be measured:
*Use Pythaogras's theorem...
24^2 + 10^2 = D^2
D=√(24^2+10^2)
D=26 inches
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Measure the surface area of the two ramps:
26 inches * 30 inches * 2
= 1560 inches squared
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Total surface area:
2160 inches squared + 720 inches squared + 1560 inches squared
= 4440 inches squared
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Answer:
4440 square inches