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3 years ago

Which of the following r-values represents the strongest correlation?

Mathematics

2 answers:

Rama09 [41]3 years ago

4 0

Hey!

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Answer: 0.92

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Explanation: The correlation will be between 1 and -1. 1 being positive and -1 being negative. The highest number that is closest to the r value is the strongest correlation.

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Hope This Helped! Good Luck!

djyliett [7]3 years ago

3 0

Answer:

0.71

Step-by-step explanation:

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Bridget, Jim and Krutika share some sweets in the ratio 4:5:1. Bridget gets 39 more sweets than Krutika. How many sweets does Ji

Yakvenalex [24]

Step-by-step explanation:

Let Bridget, Jim and Krutika's shares be 4x, 5x and x respectively.

According to the given information:

4x = x + 39

4x - x = 39

3x = 39

x = 39/3

x = 13

5x = 5*13 = 65

Hence, Jim got 65 sweets.

8 0

3 years ago

4% of 73 is what ?????

kumpel [21]

4% of 73 will be 2.92.
<span>This is because 4/100 X 73 = 2.92 </span>

7 0

3 years ago

(3) Two people are at an elevator. At the same time one person starts to walk away from the elevator at a rate of 2 ft/sec and t

Gekata [30.6K]

Answer:

The rate at which the distance between the two people is changing 15 seconds later is 7.28 ft/sec.

Step-by-step explanation:

Here, we note the following

Let the person walking way fom the elevator be X

Let the other person going up in the elevator be Y

Therefore after 15 seconds, their positions will be;

For X, 2 ft/sec × 15 s = 30 ft away from the elevator

For Y, 7 ft/sec × 15 s = 105 ft up in the elevator

At that instant, the distance between them is given as

d² = x² + y²

= 30² +105² = 11925 ft²

d = √11925 ft² = 109.202 ft

The rate of change of the distance between the two peopl, X and Y is given as

$\frac{dd^2}{dt} = \frac{dx^2}{dt} + \frac{dy^2}{dt}$

Therefore, $2d\frac{dd}{dt} = 2x\frac{dx}{dt} + 2y\frac{dy}{dt}$ or $d\frac{dd}{dt} = x\frac{dx}{dt} + y\frac{dy}{dt}$

Since $\frac{dx}{dt}$ is given as 2 ft/sec and $\frac{dy}{dt}$ = 7 ft/sec

Then $d\frac{dd}{dt} = 30 \times 2 + 105 \times 7 = 795\\$

$\frac{dd}{dt} = \frac{795}{109.202 } =7.28 ft/sec$

8 0

3 years ago

Read 2 more answers

Help please i need to get this done

Elina [12.6K]

Answer:

√22

Step-by-step explanation:

7 0

3 years ago

1. Solve each equation for x. a. X – 10 = 0

Basile [38]

Answer:
10

Explanation:
X-10=0
Combine like terms
X=0+10
X=10

I hope this helps! If it does, a brainliest would be much appreciated :)

7 0

3 years ago