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
abruzzese [7]
3 years ago
7

Match the pairs of variables with the type of relationship they show.

Mathematics
1 answer:
Luda [366]3 years ago
7 0
"-the time people spend at work and the number of friends they have"
would be "causation"; because the more/less time someone spends at work is implied to be the *cause* of their number of friends. 

"-the length of a person's hair and his or her math skills"
would be "no relationship" seeing as there's nothing that relates these two variables that could have an affect on the outcome of one or the other. 

<span>"-a student's test scores in math and physics" would be "correlation" because the two subjects are similar enough that any outcome in one could very well be similarly related to the outcome in the other. </span>
You might be interested in
Please help I need the answer ASAP!!!!!
zloy xaker [14]

h(t) = 80t - 16t²

Ground level is h(0) = 0

We want to solve for t:

h(t)= 0

80t - 16t² = 0

16t(5 - t) = 0

t = 0 or t = 5

Answer: 5 seconds

3 0
3 years ago
Read 2 more answers
SImplify to standard form (a+bi)<br> (12-9i)²
olga2289 [7]

Answer:

Hello,

Step-by-step explanation:

<u />

<u>Formula used (a+b)^2=a²+2ab+b²</u>

(12-9i)^2=3^2*(4-3i)^2\\\\=9*(16-9-24i)\\\\=9*(7-24i)\\\\=63-216i\\

5 0
3 years ago
3. Arrange these numbers from least to greatest. <br> -2.5<br> -1/3 1.7 27/4 -0.9
Svet_ta [14]

Answer:      -2.5,, -0.9,, -1/3,, 1.7,, 27/4

Step-by-step explanation:

6 0
3 years ago
What is the solution of 7k+2=4k-10?
LenKa [72]

7k+2=4k-10\ \ \ |-2\\\\7k=4k-12\ \ \ \ |-4k\\\\3k=-12\ \ \ \ |:3\\\\k=-4\\\\check:\\L=7(-4)+2=-28+2=-26\\R=4(-4)-10=-16-10=-26\\L=R

6 0
3 years ago
Read 2 more answers
Solve the equation.
mylen [45]

-9/15y+3/21=5/15y-14/21

Move 5/15y to the other side. Sign changes from +5/15y to -5/15y

-9/15y-5/15y+3/21=5/15y-5/15y-14/21

-14/15y+3/21=-14/21

Move 3/21 to the other side. Sign changes from +3/21 to -3/21.

-14/15y+3/21-3/21=-14/21-3/21

-14/15y=-14/21-3/21

-14/21-3/21=-17/21

-14/15y=-17/21

Multiply both sides by -15/14

-14/15y(-15/14)

Cross out 15 and 15, divide by 15 then becomes 1

Cross out 14 and 14, divide by 14 then becomes 1

1*1*y=y

-17/21*-15/14

Cross out 15 and 21 , divide by 3. 15/3=2, 21/3=7

17/7*5/14=85/98

Answer: c. y=85/98

7 0
3 years ago
Other questions:
  • A helicopter hovers 500 feet above a small island. The figure shows that the angle of depression from the helicopter to point p
    12·1 answer
  • A standard coffee mug has a capacity of 16 fluid ounces. If Annie needs to fill 26 mugs with coffee, how many total quarts of co
    10·2 answers
  • Using side lengths only ,could triangles be similar
    7·1 answer
  • 5 ones 3 tenths - 0.53​
    5·1 answer
  • WILL MARK BRAINLIEST! PLEASE HELP MEH!Use the relationship between the angles in the figure to answer the question. Which equati
    12·2 answers
  • Help!! please! i will give brainliest
    15·1 answer
  • Lorne subtracted 6x2 - 2x + 3 from -3r? + 5x2 + 4x - 7. Use the drop-down menus to identify the steps Lorne used
    10·2 answers
  • What’s the answer to this math question???
    8·2 answers
  • Can someone help with this problem?
    15·1 answer
  • -x +2y =-8 find the slope and y intercept
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!