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Ksju [112]
3 years ago
10

Five more than the product of a number and 8 is equal to 6.

Mathematics
1 answer:
lina2011 [118]3 years ago
5 0

Answer:

8n+5=6

Step-by-step explanation:

You might be interested in
1+1+1+1+1+1+1+1+1+1+1+1+2+2+2+2+2+3+3+3+3+3+3+3776857867458675894678476845768478574=
jekas [21]

Answer:

3776857867458675894678476845768478614

Step-by-step explanation:

40+3776857867458675894678476845768478574=

3776857867458675894678476845768478614

8 0
3 years ago
A professor gives her 100 students an exam; scores are normally distributed. The section has an average exam score of 80 with a
frozen [14]

Answer:

6.18% of the class has an exam score of A- or higher.

Step-by-step explanation:

When the distribution is normal, we use 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 question, we have that:

\mu = 80, \sigma = 6.5

What percentage of the class has an exam score of A- or higher (defined as at least 90)?

This is 1 subtracted by the pvalue of Z when X = 90. So

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

Z = \frac{90 - 80}{6.5}

Z = 1.54

Z = 1.54 has a pvalue of 0.9382

1 - 0.9382 = 0.0618

6.18% of the class has an exam score of A- or higher.

4 0
3 years ago
Aeen is drinking a beverage that has a pH of 3.3. Marien is drinking a beverage that has a pH of 2.7. About how many time the hy
AlekseyPX
The pH value of a solution is a logarithmic function of the hydronium ion concentration in the solution. Since we are given the pH foe both we can easily calculate the H+ ion concentration as follows:

Aeen
3.3 = -log (H+)
H+ = 0.04 M

Marien
2.7 = - log (H+)
(H+) = 0.07 M

Therefore, Aeen's drink is 0.07/0.04 or 2 times more hydrogen ion concentration than Marien's drink.
3 0
3 years ago
Read 2 more answers
Awnser for brainliest
igor_vitrenko [27]

Answer:

A (c=1,900-163-259)

Step-by-step explanation:

This is right because this equation follows the PEMDAS rules in order to get the correct answer.

7 0
3 years ago
1.304×10^7 in standerd form
docker41 [41]
1.304*10^7 

= 13040000

4 0
3 years ago
Read 2 more answers
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