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cluponka [151]
3 years ago
7

Question 2 (1 point) Which graph shows the solutions to 2x<6?

Mathematics
2 answers:
Studentka2010 [4]3 years ago
5 0
Answer: C
^ because the plot starts on 2, unlike all other choices & it passes 6.
7nadin3 [17]3 years ago
5 0
C ik this i just did it thgghhhjjjhj
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Please help me with this question
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Step-by-step explanation:

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Solve the following equation:
Rama09 [41]

Complete the square.

z^4 + z^2 - i\sqrt 3 = \left(z^2 + \dfrac12\right)^2 - \dfrac14 - i\sqrt3 = 0

\left(z^2 + \dfrac12\right)^2 = \dfrac{1 + 4\sqrt3\,i}4

Use de Moivre's theorem to compute the square roots of the right side.

w = \dfrac{1 + 4\sqrt3\,i}4 = \dfrac74 \exp\left(i \tan^{-1}(4\sqrt3)\right)

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Now, taking square roots on both sides, we have

z^2 + \dfrac12 = \pm w^{1/2}

z^2 = \dfrac{1+\sqrt3\,i}2 \text{ or } z^2 = -\dfrac{3+\sqrt3\,i}2

Use de Moivre's theorem again to take square roots on both sides.

w_1 = \dfrac{1+\sqrt3\,i}2 = \exp\left(i\dfrac\pi3\right)

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3 0
1 year ago
Jake is comparing the prices of two laundry service companies. Company A charges $20 per load and an additional $8 as service ch
svet-max [94.6K]
X = number of loads
company A : 20x + 8
company B : 24x + 4

20x + 8 = 20(5) + 8 = 100 + 8 = 108 (company A)
24x + 4 = 24(5) + 4 = 120 + 4 = 124 (company B)
company A charges less

20x + 8 = 20(9) + 8 = 188
24x + 4 = 24(9) + 4 = 220
220 - 188 = $ 32 bucks is saved by using company A

8 0
3 years ago
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