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Gre4nikov [31]
2 years ago
6

A student would like to estimate the mean length of words in a book report he just finished writing. He selects a

Mathematics
1 answer:
liubo4ka [24]2 years ago
3 0

Answer:

the answer is a. The population is all words in the book report and the sample is the random sample of 20 words.

Step-by-step explanation:

got it right on edge

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* The nth term of sequence A is 3n − 2 The nth term of sequence B is 10 − 2n Sally says there is only one number that is in both
Nina [5.8K]

Answer:

Sally is not right

Step-by-step explanation:

Given the two sequences which have their respective n^{th} terms as following:

Sequence A. 3n - 2

Sequence B. 10 - 2n

As per Sally, there exists only one number which is in both the sequences.

To find:

Whether Sally is correct or not.

Solution:

For Sally to be correct, we need to put the n^{th} terms of the respective sequences as equal and let us verify that.

3n-2=10-2n\\\Rightarrow 3n+2n=10+2\\\Rightarrow 5n=12\\\Rightarrow n = \dfrac{12}{5}

When we talk about n^{th} terms, n here is a whole number not a fractional number.

But as per the statement as stated by Sally n is a fractional number, only then the two sequences can have a number which is in the both sequences.

Therefore, no number can be in both the sequences A and B.

Hence, Sally is not right.

7 0
2 years ago
Which expression equals 6 when a = 5 and b = 1/3? Circle all that apply.
Troyanec [42]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
a line passes through the point (4 –6) and has a slope of -<img src="https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B4%7D" id="TexFormu
yulyashka [42]

Answer:

y = \frac{5}{4}x - 1

Step-by-step explanation:

A line that passes through the point (4,-6) has a slope of 5/-4. Which of the following gives the equation of the line?

With the slope of 5/-4, and the ordered pair (4,-6) :  

let m = 5/-4 (slope),  

x1 = 4

y1 = -6

We can use those given values into the point-slope formula:

y - y1 = m(x - x1)

Plugging in those values will give you the answer:  

y - (-6) = \frac{5}{-4} (x - 4)

Distribute \frac{5}{-4}  into the terms inside the parenthesis:

y + 6 = \frac{ 5}{-4}x  + 5  

  Subtract 6 from both sides to isolate y:

y + 6 - 6 = -\frac{ 5}{4}x +5 - 6

The equation of the line in slope-intercept form is:

y = -\frac{ 5}{4}x - 1  

6 0
3 years ago
If a train traveld from station A at 60 mph in direction of station B, which is 60 miles away, how long would it take the train
kirill [66]

Answer:

b

Step-by-step explanation:because

5 0
3 years ago
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Which statement correctly interprets this graph?
Marrrta [24]

D because none of the other statments are correct and it's the only one that lines up with the data.

8 0
3 years ago
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