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igomit [66]
3 years ago
11

Nitrates are organic compounds that are a main ingredient in fertilizers. When those fertilizers run off into streams, the nitra

tes can have a toxic effect on fish. An ecologist studying nitrate pollution in two streams measures nitrate concentrations at 42 places on Stony Brook and 42 places on Mill Brook. The parallel dotplots display the data. Which of the following is a correct comparison of the distributions of nitrate concentration in these two streams?
Both distributions appear to be right-skewed.

Neither distribution of streams has any apparent outliers.

The distribution of nitrate concentration for Mill Brook is more variable than the Stony Brook distribution.

The distribution for Mill Brook is single-peaked while the distribution for Stony Brook has two peaks.

The median nitrate concentration for the two streams are about the same.
Mathematics
1 answer:
irina1246 [14]3 years ago
6 0
duknti, oitebkivs, iriinsrion and ehow
tnks
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A driver averaged 49 miles per hour and took 10 hours to travel between two cities. What is the distance between the two cities
Vesnalui [34]

Answer:

The answer is 490

Step-by-step explanation:

It takes 10 hours at 49MPH so you have to multiply 49 miles × 10 hours which gives you 490 miles

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Why is this scientific notation: 12,050,000 = 1.25×107 wrong
Solnce55 [7]

Answer:

1.234 × 101

Step-by-step explanation:

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Bc has endpoints b(5 ,9) and c(-4, -3). Find the coordinates of the midpoint of bc
Alex73 [517]
We can find the midpoint of any line segment using the midpoint formula: M=(x1+x2/2,y1+y2/2). Essentially, the midpoint formula finds the average of two points. If we use B and the first point and C as the second, when we plug in our values we would have M=(5-4/2,9-5/2). This can be simplified to M=(1/2,4/2) or M=(1/2,2) which is the final answer.

<span>I hope this helps.</span>
4 0
3 years ago
Read 2 more answers
Which system of equations has the same solution as the system below?
worty [1.4K]

Answer: Both A, and C

Step-by-step explanation:

The answer to the first system of equations (2x+2y=16) would be

x=3 and y=5 ( 3x-y=4 )

Which means we have to find out which of the other equations has an x value of 3, and a y value of 5.

If A is 2x+2y=16, then x=3 and y=5

           6x-2y=8

If B is x+y=16, then x=5 and y=11

         3x-y=4

If C is 2x+2y=16, then x=3 and y=5

           6x-2y=8

If D is 6x+6y=48 , then x=-2 and y=10

            6x+2y=8

Both A and C are equal to the first system of equations, which means they are both correct answers.

8 0
3 years ago
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