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
balandron [24]
3 years ago
12

Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or n

egative correlation, describe its meaning in the situation.
a. no correlation
b. positive correlation; as time passes, the birth rate increases.
c. positive correlation; as time passes, the birth rate decreases.
d. negative correlation; as time passes, the birth rate decreases.

Mathematics
2 answers:
melisa1 [442]3 years ago
8 0

Answer:

a

Step-by-step explanation:

11Alexandr11 [23.1K]3 years ago
3 0

Answer:

I think D, Correct me if I'm wrong!

Step-by-step explanation:

You might be interested in
Can someone please help me!
Anton [14]

Answer:

D

Step-by-step explanation:

Let's derive the equations for the two graphs;

For the graph towards the right,

The slope = y2-y1/x2-x1; so we choose two corresponding points (x1,y1); (x2,y2)

Let's choose points;

(2,1) and (3,2)

The slope = 2-1/ 3-2 = 1/1 = 1

From the general equation of a line

y = mx + c = 1× x + (-1) = x-1

y = x-1

Similarly for that towards the left we have;

The slope = y2-y1/x2-x1; so we choose two corresponding points (x1,y1); (x2,y2)

Let's choose points;

(2,1) and (3,2)

The slope = 2-1/ 3-2 = 1/1 = 1

From the general equation of a line

y = mx + c = 1× x + (-1) = x-1

y = x-1

Similarly for that towards the left we have;

The slope = y2-y1/x2-x1; so we choose two corresponding points (x1,y1); (x2,y2)

Let's choose points;

(-7,0) and (-4,-3)

Slope = -3-0/ -4-(-7) = -3/ 3 = -1

From the general equation of a line

y = mx + c = -1× x + c = -x + c

Since c is not obvious we can find the equation by picking just a point along the graph along side an arbitrary (x,y) point hence we have for slope;

If we pick (-7,0)

y-0 / x-(-7) = -1

y / x+7 = -1

y = -x -7

The equations of the graphed lines are;

y=x-1

y=-x-7

Look at option D you we see it's the same as the equation of the graph towards the right y=x-1

For the records

y=[x+3]-4 = x+3-4 = x-1

4 0
3 years ago
The table below shows four systems of equations:
fredd [130]
<span>System 1 and system 2, because the second equation in system 2 is obtained by adding the first equation in system 1 to two times the second equation in system 1

This is the correct answer because not only is it true but it also follows the property of solving systems of equations with adding the equations. To prove that it is true:

2nd equation in system #2 = 1st equation in system #1 + 2(2nd equation in system #1)

 </span>10x − 7y = 18 == 4x − 5y = 2 + 2(<span>3x − y = 8)
10x - 7y = 18 == 4x - 5y = 2 + 6x - 2y = 16
10x = 7y = 18 == 10x - 7y = 18</span>
5 0
3 years ago
Guys, please help me out. Thank you.
hichkok12 [17]

Answer:

50 Feet

Step-by-step explanation:

2L +2W = 148

L=1.5W+14

2(1.5W+14)+2W=148

3W+28+2W=148

5W=120

w=24

6 0
3 years ago
Read 2 more answers
The mean of five numbers is 6 the median is 7 and the mode is 2. What is the answer?
Lady_Fox [76]

Answer:

2,2,7,9,10

mark as brainliest

8 0
2 years ago
The variable z is inversely proportional to x. When x is 6, z has the value 0.5. What is the value of z when x= 14?
Lilit [14]
Z is inversely proportional to X is the same as
z is directly proportional to 1/X
which can be written like this:-
y=k/X
________
0.5=k/6
0.5*6=k/6*6
k=3 ;
________
z = 3/14
Z = 0.2
7 0
2 years ago
Other questions:
  • I need this! Please! Plz do it and give me an explanation! Please!
    9·1 answer
  • Which is the best approximation of 90?<br> A.9.5<br> B.11.4<br> C.7.6<br> D.11.1
    11·2 answers
  • I need help with number 1 please help
    6·1 answer
  • 3/4 + 5/9= <br> Hshshgshshhsu
    14·2 answers
  • What's -2•7=-3+t+24 plz help
    10·2 answers
  • WILL MARK BRAINLIEST
    8·1 answer
  • HURRY PLEASE!<br> Evaluate –5u for u = –4.
    5·1 answer
  • Help plz I’ll mark brainliest
    6·1 answer
  • What’s the center of the <br> Circle
    12·2 answers
  • In Lin's drawing, the scale is 5 inches = 8 feet, and the back wall of the lab measures
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!