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VMariaS [17]
3 years ago
8

18.) Which expression is equivalent to -6x + 7.5?

Mathematics
1 answer:
nydimaria [60]3 years ago
4 0

Answer:

D

hope this helped:)

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Find the trigonometric form of the number 3 + √3i.
sattari [20]

Any complex number z can be written in trigonometric form as

z = |z| e^{i\arg(z)} = |z| \left(\cos(\arg(z)) + i \sin(\arg(z))\right)

where |z| is the modulus of z and \arg(z) is its argument, i.e. the angle z makes with the positive real axis in the complex plane.

We have

|z| = \sqrt{3^2 + \left(\sqrt3\right)^2} = \sqrt{12} = 2\sqrt3

and

\arg(z) = \tan^{-1}\left(\dfrac{\sqrt3}3\right) = \tan^{-1}\left(\dfrac1{\sqrt3}\right) = \dfrac\pi6

Then

3 + \sqrt3 \, i = \boxed{2\sqrt 3 \left(\cos\left(\dfrac\pi6\right) + i \sin\left(\dfrac\pi6\right)\right)}

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64 ounces in 8cups unit rate
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Answer:

x=8

Step-by-step explanation:

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When two 6-sided dice are rolled, there are 36 possible outcomes. Find the probability that the sum is 8
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Answer:

5/36

Step-by-step explanation:

Probability is the outcome that a  event will occur

Probability = Expected outcome/Total outcome

Since two sided dice are rolled, the total outcome will be expressed as;

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Since we are to find the probability that the sum is 8, the values that gives a sum of 8a re;

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The expected outcome = 5

Probability = 5/36

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