What is the slope of the line shown?<br> a -7/9 <br> b 9/7 <br> c 7/9 <br> d -9/7

*50 PTS, WILL MARK BRAINLIEST*

Pavel [41]

Part A)

Total stores = 362 + 66 = 428

362 / 428 = 0.845 = 84.5% = 85%

66 / 428 = 0.154 = 15.4% = 15%

Yes this is consistent with the percentages shown in the first table.

Part B)

Total stores : 197 +115 = 312

197 / 312 = 0.631 = 63.1% = 63%

115 / 312 = 0.368 = 36.8% = 37%

The percentage for current stores is less than what is shown in the first table, so this would not be consistent.

Part C )

Percentage of new stores for the Northeast = 60 / 310 = 19%

The percentage of new stores for The Midwest and Northeast are below 25%, but the percentage of new stores in the South is above 25%, so the additional training wouldn't be required for the South, but should be required for the other two areas.

6 0

3 years ago

Beth wrote a system of equations to determine when a referee will earn the same salary working the East Conference and West Conf

notka56 [123]

Answer:

She is incorrect

Step-by-step explanation:

Step 1: substitute

135 into x in both equations

Step 2: Solve the equations. Once you do this you will get y = 5375 for the first one and y = 4720 for the second one, therefore she is incorrect

6 0

2 years ago

An online article about an opinion poll says that "41% of Americans own a gun." The poll is based on online survey interviews wi

sergejj [24]

Answer:

See below

Step-by-step explanation:

A) The population of the poll is the United States Population EXCLUDING New England States. In other words, the population is all USA population except the New England population. Remember that population is all the set of individuals from where you extract your sample. The sample are those 2,700 adults interviewed.

B) The sampling used is, as said in the statement, a randome sampling.

C) Yes! There could be a bias because of the exclusion of New England States if the people who lives there tends to have more guns than the average american population. This could be, for example, due to that those states have the least gun owning in America or, contrary, if they have the highest. If Rode Island is the most violent state and has the highest gun owning rate, the results could be biased. However, we can't confirm it without seeing the data, but there is possible.

3 0

2 years ago

21. Randy owns a computer store. In 1990, he sold 150 monitors. In 2000, he sold 900

lutik1710 [3]

Answer:

$y=75x+150$

Step-by-step explanation:

Let $y$ represent the number of monitors sold.

Given:

$x$ is the number of years since 1990.

So, for the year 1990, $x=0$ .

For the year 2000, 10 years passed. So, $x=10$ .

Now, monitors sold in 1990 are 150. So, at $x=0,y=150$

Monitors sold in 2000 are 900. So, at $x=10,y=900$

Thus, the two points are $(0,150)$ and $(10,900)$ .

The slope of a line with points $(x_{1},y_{1})$ and $(x_{2},y_{2})$ is given as:

Slope, $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

For the points $(0,150)$ and $(10,900)$ , the slope is given as:

Slope, $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\ m=\frac{900-150}{10-0}\\ m=75$

Now, the y-intercept is the point where $x=0$ . So, the point $(0,150)$ has $x$ value as 0.

So, the y-intercept is 150.

Equation of a line in slope-intercept form is given as:

$y=mx+b$

Where, $m$ is the slope and $b$ is the y intercept.

Here, $m=75$ and $b=150$ .

Therefore, the equation that represents the above data is given as:

$y=75x+150$

7 0

2 years ago

A boat is traveling east across a river that is 112 meters wide at 8 meters per second. If the river has a northward current of

andreyandreev [35.5K]

This is the concept of application of the Pythagorean theorem. The resultant speed of the motorboat which is crossing the river that has a northward current of 5 m/s at a speed of 8 m/s will be given by:
c^2=a^2+b^2
c^2=8^2+5^2
c^2=64+25
c^2=89
c=sqrt89
c=9.4 m/s

6 0

2 years ago

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What is the slope of the line shown? a -7/9 b 9/7 c 7/9 d -9/7