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Fynjy0 [20]
3 years ago
11

7. Evaluate this expression if x=-2* 3x2 - 4x

Mathematics
1 answer:
natali 33 [55]3 years ago
8 0

Answer: x=0 or x= -5/6

Step-by-step explanation: x=((−2)(3))(x2)−4x

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Find all solutions to the equation sin2x+sinx-2cosx-1=0 in the interval [0, 2pi)
pshichka [43]
The solutions appear to be {π/2, 2π/3, 4π/3}.

_____
Replacing sin(2x) with 2sin(x)cos(x), you have
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  sin(x)(2cos(x) +1) -(2cos(x) +1) = 0 . . . . factor by grouping
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This has solutions
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and
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3 years ago
2 2/7× 11/12 what is the ans
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Answer:

There are 3 different forms of the answer.

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
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Lyrx [107]
<span>square root of 2562634

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5 0
3 years ago
Marc commutes to work on his bicycle, which has tires that measure 26 inches in diameter. A device on his bike informs him that
kykrilka [37]

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3 years ago
In ΔOPQ, the measure of ∠Q=90°, OQ = 24, QP = 7, and PO = 25. What is the value of the tangent of ∠O to the nearest hundredth?
Debora [2.8K]

Answer: 0.29

Step-by-step explanation:

OQ is the side opposite angle P, QP is the side opposite angle O, and PO is the side opposite angle Q.

This means that tangent = opposite/adjacent, the tangent of angle O is the opposite side, QP, over the length of the adjacent side, OQ. (It cannot be PO since that's the hypotenuse)

This means that the tangent of O is 7/24, which is about 0.29

7 0
2 years ago
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