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Lana71 [14]
3 years ago
6

Find the real solution x^4-x^3+2x^2-4x-8=0

Mathematics
1 answer:
Law Incorporation [45]3 years ago
3 0

Answer:

There's 2 solution, x= -1 and x= 2

Step-by-step explanation:

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Pls Help I’m stuckThere are 89 students in the Oakwood Middle School band. The number of boys in the band is 5 more than twice t
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Answer:

42

Step-by-step explanation:

5 more than 2 times the girls

89=5+2x

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I am pretty sure that B is the answer
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andre [41]
I believe this is correct

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3 years ago
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Use the x-intercept method to find all real solutions of the equation. -9x^3-72x^2+36=3x^3+x^2-3x+8
larisa86 [58]

-9x^3-72x^2+36=3x^3+x^2-3x+8                     Add 9x^3 to both sides.

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36 = 12x^3 +   73x^2 - 3x + 8                           Subtract 36 from both sides.

0 = 12x^3 + 73x^2 - 3x - 28      

It does factor, but it is not very nice.

(x + 6.06)(x - 6.09)(x + 0.632)

If there is any kind of error please report it in a note below.

6 0
3 years ago
If cos(x) = 0.5, then what is x?
Anestetic [448]

Answer:

=60 the second option.

Step-by-step explanation:

Given the trigonometric ratio, we can find the value of the angle by simply finding the inverse of the given ratio.

If for example Cos ∅= a, then ∅=Cos⁻¹a

If Cos (x)= 0.5, then x= Cos⁻¹ 0.5

Cos⁻1 0.5=60°

The angle whose sine is 0.5 is ∅=60°

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3 years ago
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