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Svetllana [295]
3 years ago
5

The scatter plot suggests a relationship between time and the distance from the destination. The equation of the line of best fi

t is y=-0.6x+15, and the correlation coefficient is -0.8. Which best describes the correlation between the two variables?
a. weak positive
b. strong positive
c. weak negative
d. strong negative

Mathematics
1 answer:
viva [34]3 years ago
4 0

Answer:

Strong Negative

Step-by-step explanation:

We already know that the answer is between c and d because the correlation coefficient negative.

We just have to figure out whether it is strong or weak.

In general, anything between -.7 and -1 is considered to have a strong correlation. -.8 is in between -.7 and -1 therefore the correlation is best described as strong negative.

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OnOff
Anestetic [448]

Answer:

House A

Step-by-step explanation

For house A:

divide 125,260 by to to find 10%.

10% = 12,526.The you divide this by two to get 5%.

5% = 6,263.Next add the original figure with the 5%. To makes things simpler insted of adding 5% percent twice(since were calculating for two years) just add the 10% to the original figure you get:

125,260 + 12,526= $137,786

For house B:

This is a little different than before. Find ten percent then 5 percent.

10%= 12,016

5%=6,008.Next to find 1% divide the 10% again!

1%-1,201.6,After add the five percent and 1% to find 6%.

6%=7,209.6. Multiply the 6% by 2 to find the price for 2 years.Next add the original number to the 12%.

12%=14,419.2

17,419.2+120,160= $134,579.2

In conclusion:

Compare the prices-

A=$137,786

B=$134,579.2

House A earns more money after two years.

Your welcome,this took me forevever:)))))

4 0
3 years ago
the population of a town is 1,03.500 if 56%of the population is male find the number of females in the town
bija089 [108]
The population you gave isn't formatted correctly so I'll solve the problem assuming you mean 103,500.

First we find the number of males from the percentage given:

0.56 * 103500 = 57960 males

Subtract the number of males from the total population to get the number of females:

103500 - 57960 = 45540 females

You could solve the problem by finding the percentage of females first. Since there are 56% males, that means there are 100-56 = 44% females.

0.44 * 103500 = 45540

The answer is 45540.




8 0
3 years ago
 Find sin2x, cos2x, and tan2x if sinx=-15/17 and x terminates in quadrant III
vodka [1.7K]

Given:

\sin x=-\dfrac{15}{17}

x lies in the III quadrant.

To find:

The values of \sin 2x, \cos 2x, \tan 2x.

Solution:

It is given that x lies in the III quadrant. It means only tan and cot are positive and others  are negative.

We know that,

\sin^2 x+\cos^2 x=1

(-\dfrac{15}{17})^2+\cos^2 x=1

\cos^2 x=1-\dfrac{225}{289}

\cos x=\pm\sqrt{\dfrac{289-225}{289}}

x lies in the III quadrant. So,

\cos x=-\sqrt{\dfrac{64}{289}}

\cos x=-\dfrac{8}{17}

Now,

\sin 2x=2\sin x\cos x

\sin 2x=2\times (-\dfrac{15}{17})\times (-\dfrac{8}{17})

\sin 2x=-\dfrac{240}{289}

And,

\cos 2x=1-2\sin^2x

\cos 2x=1-2(-\dfrac{15}{17})^2

\cos 2x=1-2(\dfrac{225}{289})

\cos 2x=\dfrac{289-450}{289}

\cos 2x=-\dfrac{161}{289}

We know that,

\tan 2x=\dfrac{\sin 2x}{\cos 2x}

\tan 2x=\dfrac{-\dfrac{240}{289}}{-\dfrac{161}{289}}

\tan 2x=\dfrac{240}{161}

Therefore, the required values are \sin 2x=-\dfrac{240}{289},\cos 2x=-\dfrac{161}{289},\tan 2x=\dfrac{240}{161}.

7 0
3 years ago
The cone volume of 180 1/4 and a radius of square of 9. What is the height?
Lerok [7]

Answer:

h≈2.12

Radius =9

volume = 180

Step-by-step explanation:

v=\pi r^{2} \frac{h}{3}

h=3V  / πr2=3· 180  / π·9^2 ≈ 2.12207

7 0
3 years ago
Due in 5 mins!! FIND THE MISSING LENGTHS!!!!!
meriva
Since the shape is a square the sides are equal. Then we need to find x such that x * x = 169.
Sqrt(169) = 13
So x = 13
8 0
3 years ago
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