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Sunny_sXe [5.5K]

3 years ago

13

The octal system uses base 8. the only available digits would be 0, 1, 2, 3, 4, 5, 6, and 7. if the value 2468 is converted to d

ecimal value, it would be expanded as (2 * 82) + (4 * 81) + (6 * 80). what would be the result of this

1 answer:

marysya [2.9K]3 years ago

5 0

Your description and expansion suggest you want to evaluate
.. 246₈ = 2*8² +4*8¹ +6*8⁰
.. = 2*64 +4*8 +6
.. = 166

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mallorie has $5 in her wallet. If this is 10% of her monthly allowance, what is her monthly allowamce

7nadin3 [17]

10% = 0.1
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therefore, the answer is $0.50

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3 years ago

A humanities professor assigns letter grades on a test according to the following scheme. A: Top 12% of scores B: Scores below t

RUDIKE [14]

Answer:

The minimum score required for an A grade is 88.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 77.8, \sigma = 8.5$

Find the minimum score required for an A grade.

Top 12%, which is at least the 100-12 = 88th percentile, which is the value of X when Z has a pvalue of 0.88. So it is X when Z = 1.175.

$Z = \frac{X - \mu}{\sigma}$

$1.175 = \frac{X - 77.8}{8.5}$

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Rounding to the nearest whole number

The minimum score required for an A grade is 88.

5 0

2 years ago

Read 2 more answers

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Step-by-step explanation:

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Murrr4er [49]

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Step-by-step explanation:

Let x represent the number of gallons of the 30% solution that should be mixed.

Let y represent the number of gallons of the 70% solution that should be mixed.

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0.3x + 0.7y = 0.6 × 40

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Substituting x = 40 - y into equation 1, it becomes

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3 years ago

The picture below shows a box sliding down a ramp:

AURORKA [14]

Answer: Option 2

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1 year ago