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zhenek [66]
3 years ago
6

PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
7 0
<span>B)On average, boys saw the movie more than girls.</span>
Lena [83]3 years ago
4 0
Let's go through each answer, using the line plot for reference.

A.
This is incorrect, because the boys' line plot has a few on 1, 2, 3, and it has one on 6, which makes it more spread out than the girls'. 

B.
This is correct because if you find the mean/average from both data sets, you'll see the boys' is higher. (and also the girls' have more on 0 than the boys, so it's kind of obvious.) :)

The answer is B.

Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)
You might be interested in
The gray area is the sidewalk. the area of the sidewalk is ___________ square units.
Bas_tet [7]
The area of the sidewalk is 72 square units.                                                          Solution: First, multiply 10 by 12 which equals 120. Then, subtract 6x8=48. So, therefore, 120-48= 72
5 0
3 years ago
Is -(-12) and -12 opposites??
qaws [65]

Answer:

12

Step-by-step explanation:

the opposite of -12 is 12

8 0
3 years ago
Answer this for 15 points! <br> (Slope problem)
krok68 [10]

Answer:

i tihnk it would be just -3

Step-by-step explanation:

4 0
3 years ago
How many terms of the series of - 3+0+3+6+9+...are needed to give a sum of 105?​
dolphi86 [110]

Answer:

10

Step-by-step explanation:

Remember that the formula for the sum of an arithmetic series is:

S=\frac{k}{2}(a+x_k)

Where k is the number of terms, a is the initial term, and x_k is the last term of the series.

We essentially want to find k, the number of terms, given that the sum S is equal to 105. So, substitute 105 into our equation:

105=\frac{k}{2}(a+x_k)

To do so, we need to final term x_k. We don't know what it is yet, but that doesn't matter. All we need to do is to write it in terms of k. First, remember that the standard form for the explicit formula of an arithmetic sequence is:

x_n=a+d(n-1)

Where a is the first term, d is the common difference, and n is the nth term.

From our sequence, we can see that the first term is -3.

Also, we can determine that our common difference is +3, since each subsequent term is 3 <em>more</em> than the previous one. -3+3 is 0, 0+3 is 3, 3+3 is 6, and so on.

Therefore, our explicit formula is:

x_n=-3+3(n-1)

Therefore, our final term, x_k, will be if we substitute k for n. So, we can acquire the equation:

x_k=-3+3(k-1)

Now that we know what x_k is, we can substitute that into our original equation:

105=\frac{k}{2}(a+x_k)

Substitute the equation into x_k. Also, let's substitute -3 (our first term) for a. So:

105=\frac{k}{2}(-3+(-3+3(k-1)))

And now, all we have to do is to solve for k.

First, distribute the 3:

105=\frac{k}{2}(-3+(-3+3k-3))

Add within the parentheses:

105=\frac{k}{2}(3k-9)

Multiply both sides by 2. This removes the fraction on the right:

210=k(3k-9)

Distribute. We will get a quadratic:

210=3k^2-9k

So, let's solve for k. Let's divide everything by 3:

70=k^2-3k

Subtract 70 from both sides:

0=k^2-3k-70

Factor. We can use -10 and 7. So:

0=(k-10)(k+7)

Zero Product Property:

k-10=0\text{ or } k+7=0

Solve for k for each equation:

k=10\text{ or } k=-7

-7 doesn't make sense (we can't have -7 terms). Remove that solution. So, we are left with:

k=10

Therefore, the number of terms we have in our series for our sum to be 105 is 10.

And we're done!

4 0
3 years ago
6. A square field has an area of 479 ft². What is the approximate length of a side of the field?
anastassius [24]

Answer:

22 Feet

Step-by-step explanation:

All the lengths of a square are the same length.  

The area of a square is the length times the width.  The length and the width are the same measurement.  So, we are looking for the square root of 479.

\sqrt{479}

21.88606863 is as far as my calculator goes.  This is an irrational number.  That means that it never repeats or terminates as a decimal.  They tell us to answer to the nearest foot.  That would be 22 feet.

3 0
1 year ago
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