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
vlabodo [156]
3 years ago
15

Is this a valid experimental design? A. B. C. D.

Mathematics
2 answers:
Marrrta [24]3 years ago
6 0

Answer: d

Step-by-step explanation: None needed

vagabundo [1.1K]3 years ago
3 0

Answer:

i would say 3

Step-by-step explanation: why? because most likely they are testing 2 different types and if one gets a unfair advantage that can ruin everything

You might be interested in
Find the solution to the system of equations. <br> y= -5x+6<br><br> y=3x-2<br><br> x=<br> y=
Neporo4naja [7]

Answer:

x=1, y=1. (1, 1).

Step-by-step explanation:

-5x+6=3x-2

-5x-3x+6=-2

-8x+6=-2

-8x=-2-6

-8x=-8

8x=8

x=8/8

x=1

y=3(1)-2=3-2=1

8 0
3 years ago
Read 2 more answers
The baseball stadium holds 23,564 people. 3/4 of the seats were sold. How many people were in the stadium
Dennis_Churaev [7]

capacity of the stadium=23564

no.of seats occupied=3/4 of 23564

no.of people in the stadium=23564*3/4

=17673


3 0
3 years ago
Read 2 more answers
A train traveled 240 km in 2.5 hours and then slowed down traveling the final 180 km in 2 hours. What was the train's average sp
sesenic [268]
Average speed=Total Distance Covered\<span>Total time take<span>n
T.D=240+180=420
T.T=2.5+2=4.5
420\4.5=93.3 km\h
answer=D</span></span>
7 0
3 years ago
Four numbers from the set 0 to 9, including 0 and 9, are used to create a personal identification number. Once a number is used,
Novay_Z [31]
Possible outcomes: 5040 
Possible to begin with a 0: 504
Theoretical probability: 0.1

These are the correct answers



5 0
3 years ago
Read 2 more answers
(100 points)
LekaFEV [45]

Answer:

30/10 and 5/11

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Use the formula to evaluate the series 6+2+2\3+2\9+...+a6
    7·1 answer
  • How much dose 23k of gold cost today???
    13·2 answers
  • mr. williams physical education class lasts 7/8 hour. how many minutes are spent warming up and cooling down if they spent 3/10?
    12·1 answer
  • What is the area of a circle whose radius is 4 cm?
    7·2 answers
  • Divide. square root of -18 / square root of -50
    15·1 answer
  • Is the following number rational or irrational?
    7·2 answers
  • A fish tank holds 90 gallons of water is 40% full. How many more gallons are needed to fill the tank?
    7·2 answers
  • Jai bought a helmet and a pair of skates.
    15·1 answer
  • If &lt; A and &lt; B are supplementary, and &lt; A = 3x - 9 degrees, and &lt; B = 2x + 14 degrees, find x.
    15·1 answer
  • Let r = 9.4 and L = 18.2. Find surface area of figure
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!