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Firlakuza [10]
3 years ago
10

The scatterplot that represents the monthly values of stock QRS has an r

Mathematics
1 answer:
cricket20 [7]3 years ago
4 0

Answer:

D

Step-by-step explanation:

The correlation coefficient, r value, measures the strength and direction of 2 variables in a scatterplot. It ranges from +1 to -1.

+1 means a perfect positive correlation

-1 means a perfect negative correlation

0 means there is no correlation

Also,

a value close to 0.7 would signify a strong relationship (whether positive or negative)

a value close to 0.5 indicates a moderate relationship

a value close to 0.3 indicates a weak relationship

Now, the question says the r value is 0.315

THis is POSITIVE

Also, this is a "weak" relationship

Thus, we can say:

It has weak correlation, or answer choice D

D is right.

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What is the slope of a line that is perpendicular to the line y=-1/3x-6
natima [27]

Answer:

3

Step-by-step explanation:

3 is the complete oposite of -1/3 in terms of slopes, therefore they are perpendicular to each other.

3 0
3 years ago
A collection of dimes is arranged in a triangular array with 17 coins in the base row, 16 in the next, 15 in the next, and so fo
Alona [7]

Good evening ,

Answer:

<h2>153 dimes.</h2>

Step-by-step explanation:

1+2+3+...+17 =  (17×18)/2 = (17×18)÷2 = 153 dimes.

it’s the sum of 17 terms of a geometric series.

:)

8 0
3 years ago
Read 2 more answers
There are_____in the listening process
valentina_108 [34]

Answer:

5 steps.

Step-by-step explanation:

  • Recieving
  • Understanding
  • Evaluating
  • Remembering
  • Responding

hope it helps!

6 0
3 years ago
Read 2 more answers
jenny borrowed $500 for 5 years at 4% interest compounded annually. what is the total amount she will have paid when she pays of
alexdok [17]
Use the formula for compound interest,  
  
A=P(1+ \frac{r}{n})^{nt}  
  
Where P is the starting amount (500$), r is the rate of interest (0.04), n is the number of times the interest is compounded per unit (1 per year), and t is the amount of time it is compounded (5 years).  
  
Now, plug it into the formula:  
  
A=500(1+ \frac{0.04}{1})^{5}  
  
Do the math, and your answer is she must pay <span>608.32$ when she pays her debts.</span>
5 0
3 years ago
Help me on geometry??
algol13

Answer:

15. ∠ABE = 50°

16. ∠EBD = 10n - 19

Step-by-step explanation:

If $ \overline{\textbf{BE}} $ bisects ∠ABD then we have ∠ABE = ∠DBE

So, we will have: (6x + 2)° = (8x - 14)°

⇒ 6x + 2 = 8x - 14

⇒ 8x - 6x = 14 + 2

⇒ 2x =16

⇒ x = 8

∴ ∠ABE = 6(8) + 2

= 48 + 2

= 50°

∴∠ABE = 50°

16. If $ \overline{\textbf{BE}} $ bisects ∠ABD then ∠ABE + ∠EBD = ∠ABD

⇒(12n - 8) + ∠EBD = (22n - 11)

⇒ ∠EBD = 22n - 11 - 12n + 8

⇒ ∠EBD = 10n - 3

Hence, the answer.

7 0
3 years ago
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