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Wittaler [7]
3 years ago
14

-\dfrac{1}{6} \times \left(-\dfrac{9}{7}\right)− 6 1 ​ ×(− 7 9 ​ )minus, start fraction, 1, divided by, 6, end fraction, times,

left parenthesis, minus, start fraction, 9, divided by, 7, end fraction, right parenthesis
Mathematics
2 answers:
sergey [27]3 years ago
7 0

Answer:

  \dfrac{3}{14}

Step-by-step explanation:

The even number of minus signs means the product will be positive. A factor of 3 can be removed to simplify the product. As usual, the numerator of the product is the product of numerators, and the denominator of the product is the product of denominators.

  -\dfrac{1}{6} \times \left(-\dfrac{9}{7}\right)=\dfrac{1\cdot 9}{6\cdot 7}=\dfrac{3\cdot 3}{3\cdot 14}=\boxed{\dfrac{3}{14}}

Alika [10]3 years ago
3 0

Answer:

→ 3/4 ←

-1/6 × (-9/7)= 1·9/6·7  3·3/3·14 = 3/4

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3. [6x - 2y=2.

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5x – (13 – x) &gt;_9x – 7
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Students received grades with or - (example B ). Of all students who received one or more plus grades, 92% were undergraduates a
MrMuchimi

Answer:

The probability that a student is an undergraduate student, given that the student received a plus grade is 0.92

Step-by-step explanation:

The conditional probability of an event <em>B</em> given that another event <em>A</em> has already occurred is:

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Denote the events as follows:

<em>X</em> = a students is a graduate

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Consider the tree diagram below.

According to the tree diagram, the probability that a student is an undergraduate student, given that the student received a plus grade is:

P (+ | Y) = 0.92

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