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tino4ka555 [31]
2 years ago
11

Four students each made a list of prime numbers. Eric:5,7,17,23. Maya:3,5,13,17. Bella:2,3,17,19. Jordan:7,11,13,21 Who made an

error and included a composite number? Write the composite number from his or her list.

Mathematics
2 answers:
Serga [27]2 years ago
4 0

Answer:

21 isnt prime so Jordan made the mistake

Step-by-step explanation:

3x7=21 as well as 21x1

Sergio039 [100]2 years ago
3 0

Step-by-step explanation:

Jordan made an error. 21 is a composite number. 7×3=21. it is not a prime number

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A group of pennies made in 2018 are weighed. The mean is approximately 2.5 grams
Hatshy [7]

Answer:

*  The mean (a measure of central tendency) weight value is the average of the weights of all pennies in the study.

* The standard deviation (a measure of variability or dispersion) describes the lowest and highest any individual penny weight can be. Subtracting 0.02g from the mean, you get the lowest penny weight in the group.

Step-by-step explanation:

Recall that a penny is a money unit. It is created/produced, just like any other commodity. As a matter of fact, almost all types of money or currency are manufactured; with different materials ranging from paper to solid metals.

A group of pennies made in a certain year are weighed. The variable of interest here is weight of a penny.

The mean weight of all selected pennies is approximately 2.5grams.

The standard deviation of this mean value is 0.02grams.

In this context,

*  The mean (a measure of central tendency) weight value is the average of the weights of all pennies in the study.

* The standard deviation (a measure of variability or dispersion) describes the lowest and highest any individual penny weight can be. Subtracting 0.02g from the mean, you get the lowest penny weight in the group.

Likewise, adding 0.02g to the mean, you get the highest penny weight in the group.

Hence, the weight of each penny in this study, falls within

[2.48grams - 2.52grams]

4 0
3 years ago
Can i get help with 4,6, and 8 PLEASE HELP!!!!!!!!!! IM GONNA RUN OUTTA TIME!!!!
gogolik [260]
They are all even numbers
8 0
3 years ago
what happens to the value of the expression 5/x + 5 as x decreases froma large positive number to a small positive number
agasfer [191]

Answer:

The value increases

Step-by-step explanation:

the smaller the divisor, the larger the quotient.

7 0
3 years ago
What is the geometric mean between 3 and 10
stiks02 [169]

Answer:

So for the geometric mean, you would multiply the two numbers and put them under a radical

Step-by-step explanation:

3 times 10= 30

=\sqrt{30}

8 0
3 years ago
Helpppppp asapppppopoo
wlad13 [49]
Answer: Choice A

Raising something to the 1/4th power is the same as applying the 4th root to that expression. Raising an expression to the 1/n power is the same as applying the nth root.

Rule:
x^{1/n} = \sqrt[n]{x}
(if the text is too small it basically says x to the (1/n) = square root with a small 'n' all over x)
4 0
3 years ago
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