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Norma-Jean [14]
3 years ago
12

Which of the following expressions represents "twelve diminished by six times a number"?

Mathematics
2 answers:
irga5000 [103]3 years ago
5 0
12 - 6n the answer is A i believe
larisa [96]3 years ago
4 0
The correct answer is:  [A]:  " 12 – 6n " .
_______________________________________________________
              →   (in which "n" represents the [unknown] number) .
_______________________________________________________
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I really need help anyone please
icang [17]
(15x^3y^-8)÷(5x^2y^-4)
= 3xy^-4

(3x)/ y^4
4 0
3 years ago
Help me with this question
Alona [7]

Answer:

A

Step-by-step explanation:

The opposite of 6 IS -6

5 0
2 years ago
48. Reading Rates The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words per minute a
son4ous [18]

Answer:

The reading speed of a sixth-grader whose reading speed is at the 90th percentile is 155.72 words per minute.

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 = 125, \sigma = 24

What is the reading speed of a sixth-grader whose reading speed is at the 90th percentile

This is the value of X when Z has a pvalue of 0.9. So it is X when Z = 1.28.

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

1.28 = \frac{X - 125}{24}

X - 125 = 1.28*24

X = 155.72

The reading speed of a sixth-grader whose reading speed is at the 90th percentile is 155.72 words per minute.

4 0
3 years ago
Read 2 more answers
Write an expression equivalent to h^6/h^3 in the form of h^m
Pavel [41]

Answer:

h^3 = h^m

Step-by-step explanation:

\frac{h^6}{h^3} = h^m

6 - 3 = 3

keep the base same, therefore

h^3 = h^m

Hope this helps!

3 0
3 years ago
A cone is filled to a height of 3 inches with a liquid. The liquid is then poured into an empty cylinder with the same height an
Tasya [4]
Answer: 1 inch

Volume of the cylinder = πr²h

Volume of the cone = 1/3πr²h

If the radius are the same for both the cone and the cylinder, then the liquid will reach 1/3 of its height in the cylinder compared to the cone. 

Height = 1/3 x 3 inches 
Height = 1 inch

----------------------------------------------------------------------------------------
Answer: The height of the cylinder will be 1 inch.
----------------------------------------------------------------------------------------
3 0
3 years ago
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