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Natalka [10]
3 years ago
10

How to multiply fractions

Mathematics
1 answer:
cluponka [151]3 years ago
4 0

For example,

\frac{1}{2} *\frac{1}{2}

They both do have the same denominator, so we can multiply them.

We need to multiply the numerators.

Next, multiply the denominators.

We then get:

1/4

--

If the denominators are not the same, find the LCD (Least Common Denominator) of the two fractions. Then, follow above.

--

Need Help? Please leave a comment :D

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Answer: 0.86 of the exam scores are between 68 and 77.99 points

Step-by-step explanation:

Since the set of computer science exam scores are normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = computer science exam scores .

µ = mean score

σ = standard deviation

From the information given,

µ = 71.33 points

σ = 3 points

We want to find the proportion of the exam scores are between 68 and 77.99 points. It is expressed as

P(68 ≤ x ≤ 77.99)

For x = 68,

z = (68 - 71.33)/3 = - 1.11

Looking at the normal distribution table, the probability corresponding to the z score is 0.13

For x = 68,

z = (77.99 - 71.33)/3 = 2.22

Looking at the normal distribution table, the probability corresponding to the z score is 0.99

P(68 ≤ x ≤ 77.99) = 0.99 - 0.13 = 0.86

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3 years ago
What is the decimal form of 3/8
Ludmilka [50]

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Step-by-step explanation:

3 0
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Read 2 more answers
I need help n pls explain ​
WARRIOR [948]

Answer:

The correct option is C). When it was purchased, the coin was worth $6

Step-by-step explanation:

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A figure of f(t) shows that the graph has time t on the x-axis and f(t) on the y-axis.

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f(0)=6\times2^{0}

<em>f(0)=6</em>

Thus,

The correct option is C). When it was purchased, the coin was worth $6

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zysi [14]
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