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Iteru [2.4K]
2 years ago
12

Two variables are correlated with r=−0.925. Which description best describes the strength and direction of the association betwe

en the variables? moderate positive strong positive strong negative moderate negative
Mathematics
2 answers:
inessss [21]2 years ago
8 0

Note that the correlation coeff. must have a value between -1 and +1.  If r is very close to 1, then there is a strong positive correlation; if very close to -1, then there is a very strong negative correlation.  Thus, if r = -0.925, we have a "strong negative" correlation.  

Please, next time, separate your possible answer list with commas or put only one possible answer on each line.

oksano4ka [1.4K]2 years ago
7 0

Answer:

Strong negative

Step-by-step explanation:

Confirmed correct with K12 test.

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The length of TR is 17 units. What are the lengths of SV and QT? (please hurry i dont get this question) also i need each indivi
Zielflug [23.3K]

Answer:

<h2>QT = 21</h2><h2>SV = 41</h2>

Step-by-step explanation:

From the diagram, it can be seen that TR is parallel to RV. This means that TR = RV. Given TR = 17 and RV = 3x+2

3x+2 = 17

3x = 17-2

3x = 15

x = 5

RV = 3(5)+2 = 17

QV = 4x+1 = 4(5)+1

QV = 21

Using Pythagoras theorem on ΔQRV to get RQ

QV² = QR²+RV²

21² = QR²+17²

QR² = 21²-17²

QR = 12.33

Using Pythagoras theorem on ΔQRT to get QT

From ΔQRT,

QT² = QR²+TR²

QT² = 12.33²+17²

QR² = 152.0289+289

QT² = 441.0289

QT =21

Since TS = 9(5)-4 = 41

Using Pythagoras theorem on ΔTRS

From ΔTRS,

TS² = RS²+TR²

41² = RS²+17²

RS² = 41²-17²

RS² = 1392

RS = 37.31

Similarly Using Pythagoras theorem on ΔRSV

From ΔRSV,

SV² = RV²+RS²

SV² = 17²+37.31²

SV² = 1681.0361

SV = 41

7 0
2 years ago
Read 2 more answers
The cost for a company to manufacture x bracelets can be represented by the function C(x). Complete the sentence below using the
gizmo_the_mogwai [7]
The cost for a company to manufacture "x".... 
These statements tell you what X is. (The word cost refers to what the function will tell us. In other words C(x) = The Cost for the Company)) 

So as we keep going the problem goes onto: 
.... bracelets
So the number of bracelets is X. 

The function is: C(x) 

And how functions work are quite simple. You plug in a number (x) and get out a number (y).

So, C(256) = 1536

So, they made 256 bracelets at a cost of 1536 dollars. 

This is no different than if I said the function was: 
C(x) = 6x
And then asked, what would the function equal when x = 256. It's the same thing, so don't let it trip you up! 

Answer 1: 1536$
Answer 2: 256

3 0
2 years ago
Read 2 more answers
Amir drove from Jerusalem down to the lowest place on Earth, the Dead Sea, descending at a rate of 12 meters per minute. He was
RUDIKE [14]

Answer:

Graph these two points: (0, 360), (30, 0)

Step-by-step explanation:

Since Amir drove for 30 minutes at a rate of 12 meters, that means that he started at an elevation of 360 feet. The easiest way to graph this, is to place one dot at (0, 360), and at (30, 0).

8 0
2 years ago
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David drives 168 miles a week for work. He fills his gas tank twice a week. Each fill up is for 12 gallons. Assuming he uses all
hammer [34]
If you knew how to divide, you could answer this problem.
3 0
2 years ago
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Сумму чисел 165 и 633 уменьшили в несколько раз получили 266. Чему равно неизвестное число?
Whitepunk [10]

Answer:

3

Step-by-step explanation:

The sum of 165 and 633 will be

165+633=798

When the sum is reduced to 266, it means the sum is reduced by 798/266=3

The sum is reduced three times.

Therefore, as per the question, this sum was reduced three different times

4 0
2 years ago
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