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Shalnov [3]
3 years ago
5

Ms. Lane teaches two sections of math class. Below are the results of a pop quiz she gave each section. Which section’s data sho

ws the most variability?
A. Section B; the maximum number of students scored 9.
B. Section A; the maximum number of students scored 6
C. Section B; students in this section scored between 1 and 9
D. Section A; students in this section scored between 1 and 10

Mathematics
1 answer:
Mkey [24]3 years ago
4 0

Answer:

D. Section A; students in this section scored between 1 and 10

Step-by-step explanation:

This answer is correct because the graph shows everything that was explained in the answer. Hope that helps!!

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Kevin has 4.85 in nickels and dimes. if he has fewer dimes than nickels, how many coins does he have altogather?​
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49 coins.

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It takes 10 dimes to equal a dollar, therefore fourty dimes equals four dollars.

Eight more dimes for the eighty cents, and one nickel for the 5 cents.

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Which of the following describes the graph of 2x + 4y < 16?
kherson [118]
<h3>Answer: A) Dashed line, shaded below</h3>

=============================================================

Explanation:

2x + 4y < 16 solves to y < -0.5x+4 when you isolate y. The inequality sign does not change direction because we divided both sides by a positive value (in this case, 4).

The graph of y < -0.5x+4 will be the same as the graph of 2x+4y < 16

To graph y < -0.5x+4, we graph y = -0.5x+4 which is a straight line that goes through the two points (0,4) and (2, 3). This is the boundary line of the inequality shaded region. The boundary line is a dashed line because we are not including points on the boundary that are part of the solution set. We only include these boundary points if the inequality sign has "or equal to".

We then shade below the dashed boundary line to indicate points below the boundary line. The shading is done downward due to the "less than" sign.

---------------------

Perhaps another method to find what direction we shade is we can try out a point like (0,0). The point cannot be on the boundary line.

Plug those coordinates into either equation. I'll pick the second equation

y < -0.5x+4

0 < -0.5*0+4

0 < 0+4

0 < 4

The last inequality is true, so the first inequality is also true when (x,y) = (0,0). Therefore, the point (0,0) is in the shaded region. The point (0,0) is below the boundary line y = -0.5x+4

So this is another way to see that the shaded region is below the boundary line.

6 0
2 years ago
If the points (2,3) and (5,y) lie on a line whose slope is -7/6, what does y equal
nlexa [21]

Answer:

Step-by-step explanation:

\\frac{y-3}{5-2}=\frac{-7}{6}  \\y-3=\frac{-7}{6} *3\\y=-\frac{7}{2}+3=-\frac{1}{2}

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