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
Reil [10]
2 years ago
5

TRUE or FALSE: Observational studies are used to determine causality between explanatory and response variables.

Mathematics
1 answer:
OlgaM077 [116]2 years ago
5 0

Answer:

True

Step-by-step explanation:

I'm pretty sure it true, sry if it's not

You might be interested in
What is 2/6 simplified?
m_a_m_a [10]
1/3 is the answer. Hope this helps
3 0
3 years ago
three friends earned more then $200 washing cars. they paid their parents $28 for supplies and divides the rest of money equally
Allushta [10]
X is each friend
3x + 28 > 200
3x > 172
x > $57.33
5 0
3 years ago
Factor completely x^2-9x-20
Nadya [2.5K]

Answer:

(x - 10.844) (x + 1.844)

Step-by-step explanation:

5 0
3 years ago
Which constants could each equation be multiplied by to eliminate the x-variable using addition in this system of equations? 2x+
Elden [556K]

Answer:

The first equation can be multiplied by 3 and the second equation by 2.

Step-by-step explanation:

Given

2x+3y=25

-3x + y=22

Required

How to eliminate x

To eliminate x using addition, we have to do the following;

1. Take the coefficient of x in equation 1; Coefficient = 2

2. Take the coefficient of x in equation 2; Coefficient = -3

3. Multiply equation 1 by 3

3(2x + 3y = 25)

6x +9y = 75

4. Multiply equation 2 by 2

2(-3x + y = 22)

-6x + 2y = 44

5. Add both resulting equations

6x +9y = 75  +  -6x + 2y = 44

6x - 6x + 9y + 2y = 75 + 44

11y = 75 + 44

Notice that x has been eliminated;

4 0
3 years ago
Read 2 more answers
Question is in picture​
irakobra [83]

Answer

Red is -19

Green is -24

Blue is -14

Purple is 17

Step-by-step explanation:

I don't really know what to do but...

Hope I helped.

3 0
3 years ago
Read 2 more answers
Other questions:
  • The following set of ordered pairs is an example of direct variation, find the constant ratio between the variables. (Hint: Find
    10·1 answer
  • How to solve5n-16-8n=-10 step by step
    12·1 answer
  • QR is tangent to circle P at point Q.
    6·1 answer
  • In a right triangle, 40-x=(3x). What is the value of x?
    14·1 answer
  • For what values of m does the graph of y = mx^2 – 5x – 2 have no x-intercepts?
    14·1 answer
  • For each of these compound propositions, use the conditional-disjunction equivalence (Example 3) to find an equivalent compound
    8·1 answer
  • find the slope and y intercept for the following equation by writing it in the form y=mx+b -8x+y=5 someone help please
    11·2 answers
  • Find the value of a and b when x = 10<br> 5x2<br> 2<br> 2x²(x - 5)<br> 10x
    6·1 answer
  • A = lw is both a literal equation and a formula.<br> true<br> false
    15·2 answers
  • Help?<br><br> 3. Three times a number is two times the difference of that number and one.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!