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photoshop1234 [79]
2 years ago
8

A/4 - 5/6 = -1/2a/4 - 5/6 = -1/2​

Mathematics
1 answer:
quester [9]2 years ago
5 0

Answer:

a = 4/3

yea thats the answer

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Thomas bought several paintbrushes for $4 each. He paid with a $20 bill. The expression 20 – 4n is used to determine how much ch
Tresset [83]

Answer:

the variable n represents how many of the product thomas bought

Step-by-step explanation:

20 dollars is the initial amount of money, and for every paintbrush, you have to subtract 4 dollars from thomas's initial amount, and the result of the subtraction is the amount of change he will recieve.

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3 years ago
Write an absolute value equation that satisfies the following condition.
lawyer [7]

Answer:

x=-17.......................

Step-by-step explanation:

x+17=0

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3 years ago
The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.21 minutes and a st
madam [21]

Answer:

4.55% probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase.

Since Z > -2 and Z < 2, this outcome is not considered unusual.

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.

If Z \leq 2 or Z \geq 2, the outcome X is considered to be unusual.

In this question:

\mu = 8.21, \sigma = 1.9

Find the probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase.

This is the pvalue of Z when X = 5. So

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

Z = \frac{5 - 8.21}{1.9}

Z = -1.69

Z = -1.69 has a pvalue of 0.0455.

4.55% probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase.

Since Z > -2 and Z < 2, this outcome is not considered unusual.

8 0
3 years ago
In a certain town there were 403 robberies last year.this year the number of robberies has gone down 35% how many robberies were
8_murik_8 [283]
262 robberies this year
7 0
3 years ago
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In 1995 a gallon of gas used to cost $1.00 today a gallon of gas cost $4.00 what is the percent increase?
Wittaler [7]

Answer:

300%

Step-by-step

300% of 1.00$ is 4.00 because you are adding 1.00 + 300%

5 0
2 years ago
Read 2 more answers
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