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vagabundo [1.1K]
3 years ago
5

98 POINTS PLEASE ANSWER AND EXPLAIN

Mathematics
2 answers:
a_sh-v [17]3 years ago
7 0

Answer:

Step-by-step explanation:

R-value can range from -1 to 1 with correlation being strongest at -1 and 1 and weakest at 0.

So the answer is D. -0.9.

sineoko [7]3 years ago
5 0

The value of a correlation coefficient ranges between -1 and 1.

The greater the absolute value of the Pearson product-moment correlation coefficient, the stronger the linearrelationship.

The strongest linear relationship is indicated by a correlation coefficient of -1 or 1.

The weakest linear relationship is indicated by a correlation coefficient equal to 0.

A positive correlation means that if one variable gets bigger, the other variable tends to get bigger.

A negative correlation means that if one variable gets bigger, the other variable tends to get smaller.

therefore

d is correct

-0.9

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Tom [10]

Answer:21.2

do x/45 = 24/51 cross multiply and get 51x=1080 simplify and get 21.2

3 0
3 years ago
Find the equation line<br> (5,6), (4,7)
34kurt

Answer:

x+y=11

Step-by-step explanation:

Here we are given two coordinates through which our lines passes through. Now we are going to use the two point form to find the equation of the line.

The two point form is given as

\frac{y-y_1}{x-x_1}=\frac{y_2-y_1}{x_2-x_1}

Here we are given two coordinates . Thus replacing them in the formula and simplifying it will give us the equation of the line.

\frac{y-6}{x-5}=\frac{7-6}{4-5}

\frac{y-6}{x-5}=\frac{1}{-1}

(y-6)=-(x-5)

y-6=-x+5

adding x and 6 on both sides we get

x+y=11

Hence this is our equation of the line passing through (5,6) & (4,7)

8 0
3 years ago
Pam jogged up the hill at 6 km/h and then jog down back down the hill at 10 km an hour how many kilometers did you travel at all
atroni [7]

Answer: you travelled 10 km

Step-by-step explanation:

Pam jogged up the hill at 6 km/h.

Let x represent the number of kilometers that you travelled by jogging up the hill or returning back.

Time = Distance/speed

Pam jogged up the hill at 6 km/h.

Time spent in jogging up the hill would be

x /6

She then jog back down the hill at 10 km an hour. Time spent in jogging down the hill would be

x /10

If the total jogging tie is 1 hour 20 minutes, converting to hours, it becomes 1 + 20/60 = 1.33

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x /6 + x/10 = 1.33

10x + 6x = 80

16x = 80

x = 80/16 = 5

Total distance travelled up and down the hill would b

5 × 2 = 10 km

4 0
3 years ago
What is the GCF of 4 and 7
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The GCF of 4 and 7 is 1

The factors of 4 are 1, 2, and 4 
The factors of 7 are 1 and 7 
1 is the greatest number that they have in common so 1 is the GCF.
6 0
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Answer:

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3 years ago
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