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joja [24]
3 years ago
14

Drag the tiles to the correct boxes to complete the pairs.

Mathematics
1 answer:
jolli1 [7]3 years ago
4 0

Answer:

2\frac{1}{3} ÷ 7 = \frac{1}{3}

\frac{12}{14} ÷ \frac{7}{6} = \frac{36}{49}

\frac{3}{5} ÷ 5 = \frac{3}{25}

\frac{22}{33} ÷ \frac{6}{9} = 1

\frac{1}{12} ÷ \frac{1}{6} = \frac{1}{2}

Hope that helps.

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Select the correct answer.
alexira [117]

Answer:

\huge\boxed{A.\ -\dfrac{9}{4}+2i}

Step-by-step explanation:

The standard form of a complex number:

z=a+bi\\\\a,\ b\in\mathbb{R}

3i+\left(\dfrac{3}{4}+2i\right)-(3+3i)=3i+\dfrac{3}{4}+2i-3-3i\\\\=\left(\dfrac{3}{4}-3\right)+(3+2-3)i=-2\dfrac{1}{4}+2i=-\dfrac{9}{4}+2i

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3 years ago
Suppose scores on exams in statistics are normally distributed with an unknown population mean and a population standard deviati
Anna71 [15]

Answer:

( 67.18, 68.82)

Step-by-step explanation:

Let \mu be the true (population) mean of statistics exam scores. We have a large random sample of n = 36 scores with a sample mean (sample mean score) of \bar{x} = 68. We know that the population standard deviation is \sigma = 3. A pivotal quantity is (\bar{x}-\mu)/(3/\sqrt{36}) = (\bar{x}-\mu)/(3/6) = (68-\mu)/(1/2) which is approximately normally distributed and P(-z_{0.05}\leq(68-\mu)/(1/2)\leq z_{0.05}) = 0.90 where -z_{0.05} =-1.6449, and so, P(-1.6449\leq(68-\mu)/(1/2)\leq 1.6449) = 0.90. Therefore the 90% confidence interval is (68-(1/2)(1.6449), 68+(1/2)(1.6449)), i.e., ( 67.18, 68.82)

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3 years ago
Which is not a property of a parallelogram?
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"Contains four right angles" is the one among the following choices given in the question that is <span>not a property of a parallelogram. Parallelograms can have angles that are not ninety degrees. The correct option among all the options that are given in the question is the second option or option "B". </span>
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3 years ago
Simplify this equation ASAP please
yulyashka [42]
Hey there :)

3√10 + 7√15 - 6√10 - 4√15

Combine like-terms together
3√10 - 6√10 + 7√15 - 4√15

- 3√10 + 3√15
           ↑
Will be your final answer
4 0
3 years ago
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