1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lesya692 [45]
4 years ago
14

−221×2740 ​ Enter your answer as a fraction, in simplified form, in the box.

Mathematics
1 answer:
lakkis [162]4 years ago
7 0
\frac{x}{y} 
  \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]
You might be interested in
What is the correlation coefficient between the variables? Round to three decimal places. Enter your answer in the box. r≈ Age S
Free_Kalibri [48]

There are two data sets x and y.

X includes = 14 25 19 35 20 12 5

Y includes = 360 293 315 212 315 331 404

 to solve for the correlation coefficient, we need to get the following values step by step

Step 1: Find the mean of each set.

The mean of X = 18.571

The mean of Y = 318.571

 

Step 2: Subtract the mean of X from every value X value (denote this with letter a). Do the same for y (denote this with letter b).

The mean of X subtracted from every X value (a):

14 - 18.571 = -4.571

25 - 18.571 = 6.429

19 - 18.571 = 0.429

35 - 18.571 = 16.429

20 - 18.571 = 1.429

12 - 18.571 = -6.571

5 - 18.571 = -13.571

The mean of Y subtracted from every value of Y (b):

360 - 318.571 = 41.429

293 - 318.571 = -25.571

315 - 318.571 = -3.571

212 = 318.571 = -106.571

315 - 318.571 = -3.571

331 - 318.571 = 12.429

404 - 318.571 = 85.429

 

Step 3: Calculate: a *  b, a^2 and b^2 of every value.

For a*b

-189.388

-164.388

-1.531

-1750.816

-5.102

-81.673

-1159.388

Sum: -3352.286


For a²

20.898

41.327

0.184

269.898

2.041

43.184

184.184

Sum: 561.714


For b²

1716.327

653.898

12.755

11357.469

12.755

154.469

7298.041

Sum: 21205.714


Step 4: Solve using this formula

r = ∑a * b / √((a²)(b²))

r = -3352.286 / √((561.714)(21205.714))

 = -0.9713


The correlation coefficient is -0.971

8 0
3 years ago
Read 2 more answers
Find a polynomial, which, when added to the polynomial 5x^2–3x–9, is equivalent to <br><br> x^2-5x+6
alexandr1967 [171]
So this is easy counting
so 5x^2-3x-9
we have 5 x^2's
-3 x's
-9

wat do we add to that to get
1 x^2's
-5 x's
+6
so we do each
5x^2+what=1x^2
subtract 5x^2
from both sides
what=-4x^2
first is -4x^2

then we have -3x to -5x
-3x+what=-5x
add 3x to both sides
what=-2x
second is -2x

-9 to 6
-9+ what=6
ad d9
what=15
last is 15
thereffor add -4x^2-2x+15

6 0
3 years ago
The wholesale price for a of shoes is $7.50. A certain department store marks up the wholesale price by 50%. Find the price of t
morpeh [17]

Answer:

$11.25

Step-by-step explanation:

1.5×7.5=11.25

4 0
3 years ago
7 3/9 - 2 4/9 =<br>11 3/4 - 5 1/4 =​
jeka57 [31]

1.)

7 \frac{3}{9}  - 2 \frac{4}{9}  \\  =  \frac{66}{9}  -  \frac{22}{9}  \\  =  \frac{44}{9}  \\  = 4 \frac{8}{9}

2.)

11 \frac{3}{4}  - 5 \frac{1}{4}  \\  =  \frac{47}{4}  -  \frac{21}{4}  \\  =  \frac{26}{4}  \\  =  \frac{13}{2}  \\  = 6 \frac{1}{2}

<em>Hope it helps and is useful :)</em>

6 0
4 years ago
Suppose the total cost for n tickets is $36 what's is the total cost of one more ticket is purchased
arsen [322]
$36/n because since there are n amount of tickets, you should divide $36 by n. I feel like you won't get me. For instance, let's say n is 6 tickets. So if 6 tickets are for $36, you should divide $36 by 6 tickets to find the unit rate. Hope this helps.
7 0
4 years ago
Other questions:
  • Salome is to fill some boxes with 140
    13·1 answer
  • Solve for theta please!
    12·1 answer
  • Es posible hacer un triángulo de 45 45 45 grados ?? <br><br> Por qué ?
    14·1 answer
  • Whats (-6+3w+y) (-6)
    9·1 answer
  • Meal cost $20.00 tiped 15% how much was the tip
    12·2 answers
  • Y=4x−9<br> Complete the missing value in the solution to the equation
    11·1 answer
  • Plz help me I need to know ,What was the towns population in 2005?
    13·2 answers
  • PLEASE I NEED HELP ASAP
    8·1 answer
  • What is the GCF of <br><br> 2X^3+3X^2+8X+12
    11·1 answer
  • Find the value of x.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!