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3 years ago

How to tell if a scatter plot is positive or negative or no ttend?

Mathematics

2 answers:

Korvikt [17]3 years ago

8 0

If the dots are going to the right, it's positive. If they're going to the left, they're negative.

blondinia [14]3 years ago

5 0

And if the dots are both sides, there is no trend.

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Cindy works two jobs to make ends meet. Both jobs pay her an hourly wage. At the first job, Cindy earns $6.50 per hour. At the s

notsponge [240]

The answer is B

6.5x + 1025y= 372
x= 2y

3 0

3 years ago

The temperature of the furnace is 1200 and cool at a rate of 15 per minute the temperature of another furnace is 900 and is heat

Hunter-Best [27]

Answer:

After 15 minutes, the temperature of both the furnaces will be same.

Step-by-step explanation:

Let $x$ be the minutes when the temperature of both becomes same.

Now, as per question:

Temperature of the furnace after $x$ minutes that is cooling at the rate of 15 degree per minute is given as:

$T=1200-15x$

Temperature of the furnace after $x$ minutes that is heating at the rate of 5 degree per minute is given as:

$T=900+5x$

Now, equating both the temperatures, we get

$1200-15x=900+5x\\1200-900=15x+5x\\300=20x\\x=\frac{300}{20}=15\ min$

Therefore, after 15 minutes, the temperature of both the furnaces will be same.

6 0

3 years ago

The term coefficient refers to

Dmitry_Shevchenko [17]

Answer:

It refers to a numerical or constant quantity placed before and multiplying the variable in an algebraic expression.

5 0

2 years ago

Find the distance between the points. (Round your answer to two decimal places. (9.7, - 2.8), (- 3.2, 8.8)

Dmitry [639]

Answer:

Rounding it to two decimal places, we get distance, $d=17.35$

Step-by-step explanation:

Given:

The two points are $(9.7, -2.8)\textrm{ and }(-3.2, 8.8)$

The distance between the two points can be obtained using the distance formula which is given as:

$d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Here, for the points, $(9.7, -2.8)\textrm{ and }(-3.2, 8.8)$

$x_{1}=9.7,x_{2}=-3.2,y_{1}=-2.8,y_{2}=8.8$

Therefore, the distance between the points is:

$d=\sqrt{(-3.2-9.7)^2+(8.8-(-2.8))^2}\\d=\sqrt{(-12.9)^2+(8.8+2.8)^2}\\d=\sqrt{(12.9)^2+(11.6)^2}\\d=\sqrt{166.41+134.56}\\d=\sqrt{300.97}=17.348$

Rounding it to two decimal places, we get $d=17.35$

7 0

3 years ago

Please help me find the perimeter!!

uranmaximum [27]

Answer:

119 and 8/14 I think.

Step-by-step explanation:

8 0

3 years ago