(True/False) In an experimental study, participants are randomly allocated (by chance, rather than by choice), to two different experimental groups. The reason for randonmization is to reduce bias.

Answers

Answer 1

Answer:

TRUE

Step-by-step explanation:


Related Questions

How many fluid ounces are in​ 12 1/4 ​cups

Answers

there are 98 US fluid ounces in 12 1/4 cups

solve ps brainliest!

Answers

Answer:

W = 17

Step-by-step explanation:

Hi! Ok so the equation is: 24=2w-10

24=2w-10 First add =10 to each side

10+24= 2w +10 -10 the tens on the right cancel.

34=2w then divide each side by negative two

(34/2)=(2/2)w can be simplified to 17=w

simplify the following expression 4√72

Answers

Answer:

Hope this helps it is in the file below.

A set of stacked plates for serving weighs 12kg . If each plate weighs 1/2 kg how many plates are in the stack?​

Answers

Answer:

24

Step-by-step explanation:

12 divided by 1/2 = 24

Hope this helped! :)

pls answer yessirrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

Answers

Answer:

150

Step-by-step explanation:

this first side is 6 by 5, (6 x 5 = 30) and 4 sides have these measurements so (30 x 4 this = 120) to find the surface area of all these sides.

The second type of side is 3 by 5, (3 x 5 = 15) and 2 sides have these measurements so we have to do (15 x 2 = 30) to find the surface area of all these sides.

Now that we have all the surface area of all the sides we have to add them up (30 + 120) the surface area of the rectangular prism is 150.

Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!

HELPP!! DUE TONIGHT!! I need answers for A, B, C, and D including the domains of each.

Answers

Answer:

[tex]\sf x < \dfrac{16}{7} ,x > \dfrac{16}{7}[/tex]

Step-by-step explanation:

Given function:

[tex]\sf f[g(x)]=\dfrac{-6+23}{7x-16}[/tex]

The domain will be values of x that do NOT make the denominator zero:

[tex]\sf \implies 7x-16=0[/tex]

[tex]\sf \implies 7x=16[/tex]

[tex]\sf \implies x=\dfrac{16}{7}[/tex]

Therefore, the domain is [tex]\sf x\neq \dfrac{16}{7}[/tex] so

[tex]\sf x < \dfrac{16}{7} ,x > \dfrac{16}{7}[/tex]

From the observation deck of a skyscraper, Jack measures a 67 angle of depression to a ship in the harbor below. If the observation deck is 903 feet high, what is the horizontal distance from the base of the skyscraper out to the ship? Round your answer to the nearest hundredth of a foot if necessary.

Answers

Answer:

Step-by-step explanation:

From the observation deck of a skyscraper; Madison measures a 67 angle of depression to a ship in the harbor below. Ifthe observation deck is 1143 feet high; what is the horizontal distance from the base of the skyscraper out to the ship? Round your answer to the nearest tenth of a foot if necessary

Answer:  383.30 feet

========================================================

Explanation:

The drawing is shown below.

Notice that 23 + 67 = 90, or you could say 90-67 = 23.

Use the tangent ratio to find x.

tan(angle) = opposite/adjacent

tan(23) = x/903

x = 903*tan(23)

x = 383.300759 approximately

x = 383.30

Help please cus I don't know.

Answers

Answer:

114

Step-by-step explanation:

just add all sides together.

Answer:

91 cm

Step-by-step explanation:

Perimeter is adding all of the side lengths:

8+32+10+10+4+4+23=91

Don't forget to add the unit:

91 cm

if f(1)= 10 and f(n)=f(n-1)+4 then find the value of f(5)

Answers

Answer:

f(5)=26

Step-by-step explanation:

hello :

f(n)=f(n-1)+4   means :  f(n)-f(n-1)=4  (comon diference for arithm - sequence)

so : f(n) =f(1)+(n-1)×4

f(n) =10+(n-1)×4

f(n) = 4n+6

f(5) = 4(5)+6 =26

8 times what equals 64

Answers

Answer:

8

Step-by-step explanation:

The required, following the given condition of the equation model,  8 times 8 equals 64.

We start with the equation 8x = 64, where x represents the unknown value we're trying to find. The equation states that when we multiply 8 by x, the result is 64.

To solve for x, we want to isolate it on one side of the equation. In this case, we can achieve this by dividing both sides of the equation by 8. Dividing both sides by 8 gives us:

8x = 64

(8x) / 8 = 64 / 8

Simplifying, we have:

x = 8

Therefore, 8 times 8 equals 64.

Learn more about the equation here:

https://brainly.com/question/30856398

#SPJ6

8. Charlotte is given the equation 3x - 4y = 12. She needs to create a graph of the equation, but
isn't sure how since she is only familiar with
graphing from slope-intercept form. Devise a plan
to help Charlotte graph the equation in the space
below, and then draw your graphed line.

Answers

Answer/Step-by-step explanation:

Note:

Graphing From An Equation:

Equation are frequently written in slope-intercept form { y = mx+b}.

Which "m" represents the slope and "b" represents the y-intercept.

Solutions and Equation:

Solutions to linear equations contain any points located on the graphed line.

Ordered Pair = Solution to an equation if it's values are substituted in the equation which makes it true

Solve:

{x = 0 }       3(0) - 4y = 12

                       -4y = 12                                 (0, -3 )

                       -4y/-4 = 12/-4

                                y = -3

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

{y = 0}                  3x-4(0) =12

                                3x = 12              (4,0)

                                 3x/3 = 12/3

                                        x = 4

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

~Lenvy~

I got this question wrong and I need help.

Answers

Answer:

the answer is A. 2

Step-by-step explanation:

4x+2 has to be half of 2x+16

then 4x+2=10 and 2x+16=20 therefore it is correct

rate brainiest

or 50,000 registered voters, 400 were randomly surveyed. their voting preferences are listed the table below, predict how many of the registered voters would vote for mulroney.

Answers

Answer: 12,500

Step-by-step explanation:

     Since 25% voted for Mulroney, we will find 25% of 50,000.

     25% -> 0.25

     0.25 * 50,000 = 12,500

I predict that 12,500 registered voters would vote for Mulroney.

ella wrote 8 more stories than anna. Is it a word phrase or scenario

Answers

scenario - as it describes the story and the character's action.

Ella wrote 8 more stories than Anna in the fifth grade.

let s, be the number of pages Anna wrote.

Expression:

s + 8

What is the value of t?

Answers

t = 180 - 66 - 57 = 57°

a circle is enlarged. the original had a radius of 10 cm. if the new circle has a radius of 30 cm, how many times bigger is the new circumference than the original?

Answers

Answer:

3 times bigger

Step-by-step explanation:

[tex]circumference \: of \: a \: circle \: has \: the \: formular \\ c = 2\pi \: r \\for \: the \: original \: circle \: c = 2 \times 3.14 \times 10 = 6.28 \\ = 63 \: approxiately \\ for \: the \: new \: circle \: c = 2 \times 3.14 \times 30 = 188.8 \\ = 188 \: approximately \\ them \: \frac{188}{63} =2.984 \\ = 3 \: approximately \\ therefore \: the \: bigger \: circumferene \: is \: 3 \: times \: the \: smaller \: circumference[/tex]

Ashley is riding her bike to train for a triathlon and so far has traveled 96 miles.
She is riding at an average rate of 15 miles per hour.
Calculate the time that she has been riding her bike in hours.
Answer:
hours
Note: Write the answer in decimal form.

Answers

Answer:

6.4

Step-by-step explanation:

she has been riding her bike for 6.4 hours.

Which expression is equal to (x + 3)^2

Answers

Answer: x^2+6x+9
Explanation: a^2+/-2ab+b^2

203, 199, 195, ...
Find the 35th term.

Answers

Answer:

67

Step-by-step explanation:

203-199=4

199-195=4

☆decreases by 4

there are 34 spaces

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

31 32 33 34 35

203-4 (34)

203-136

=67

35th term of the arithmetic sequence 203, 199, 195,...... is 67.

What is arithmetic sequence ?

An ordered group of numbers with a shared difference between each succeeding word is known as an arithmetic sequence.

The given arithmetic sequence is,

203, 199, 195,......

In the sequence, the first time a = 203,

And common difference of the sequence d = -4

Formula for nth term of the sequence,

aₙ = a + (n-1) . d

To find 35th term of the sequence, substitute n= 35,

a₃₅ = 203 + (35-1).(-4)

     = 203 + 34x-4

     = 203 - 136

     = 67

The 35th term of the given sequence is 67.

To learn more about Arithmetic sequence on :

https://brainly.com/question/1452631

#SPJ2

Draw the graph of y = 3x - 1 on the grid use the graph to estimate y when x = 2.5

Answers

Answer:

6.5

Step-by-step explanation:

all you have to do is substitute x with 2.5 in the equation and you can find y.

Solve the System of equations x = -2 ; y= -3 .(show your work step by step).

x+2y = 4
x +y = 1

Answers

Answer:

Determine the point of intersection by using substitution and solving for the variables.

Explanation:

Solving a system of equations imply we find the point of interception.

To do this, we must use substitution to find one variable, and use that value to determine the exact value of the other.

Here, we'll isolate

x

.

2

x

2

y

=

4

2

x

=

2

y

4

x

=

y

+

2

Now that we have our variable expression, we can sub this into the other equation and solve for

y

.

2

x

+

3

y

=

9

2

(

y

+

2

)

+

3

y

=

9

2

y

+

4

+

3

y

=

9

4

+

y

=

9

y

=

5

Now that we know our

y

value, we can sub it into any equation to solve for

x

.

x

=

y

+

2

x

=

(

5

)

+

2

x

=

5

+

2

x

=

~

3

Thus, our point of intersection is

(

~

3

,

5

)

.

If we graph the two equations, we can see the point of intersection is in fact

(

~

3

,

5

)

.

graph{(-2x-2y+4)(2x+3y-9)=0 [-8.875, 11.125, -0.36, 9.64]}

Hope this helps :)

HELPPP ILL GIVE BRAINLIST ALSO Interpret each plotted point in the graph.

Answers

Answer:

(0, 0) : traveling 0 inches in 0 seconds

(1, 1.5) : traveling 1.5 inches in 1 second

(3, 4.5) : traveling 4.5 inches in 3 seconds

The unit rate is

1.5 inches a second

1.5 / 1 i think thats how you write it

can someone please help!!
I need the answer and explanation. Pls don’t waste my points

Answers

I’m not sure if my answer is correct but I’ll try
I think it’s


Answer:

13.333


Explanation:

4 x 100 400
—. ——. =. ——- =13.33
30. 1. 30


Note :
Total is =30 marbles
Green marbles =4

Answer:

13 [tex]\frac{1}{3}[/tex]% are green

Step-by-step explanation:

totalling the marbles

red = 6

blue = 7

green = 4

orange = 13

total marbles = 6 + 7 + 4 + 13 = 30

fraction of green marbles = [tex]\frac{4}{30}[/tex] = [tex]\frac{2}{15}[/tex]

To change a fraction to a percentage multiply the fraction by 100%

[tex]\frac{2}{15}[/tex] × 100% = 0.1333.. × 100% = 13.33 % = 13 [tex]\frac{1}{3}[/tex]%

How much money would you have after 7 years if you invested$12,000 at 2% in order to have compounded annually?

Answers

Answer:

$1,680

Step-by-step explanation:

i think it is right because 12,000 at 2 percent=280 then 280×7= 1,680

my brother wants answers and im too lazy lol but nigel has 2 dogs. one eats 2 1/2 pounds of food each week. the other eats 1 3/8 pounds each week. together how much do the dogs eat each week

Answers

Answer:

3 7/8 would be your answer

Find the common ratio of the geometric sequence -4,12,-36

Answers

Answer:

-3

Step-by-step explanation:

a= -4

So the first and second should be multiply together

first=-4

second=12

12/-4=-3

SOMEONE PLEASE HELP I WILL GIVE 5 STARS AND BRAINLIEST! fill in the table using this function rule. y= 4x - 4

x- 1,3,5,10
y- blank

Answers

Answer:

(x=1, y=0), (x=3, y=8), (x=5, y=16), (x=10, y=36)

Step-by-step explanation:

You just plug the x into the equation. And then BAM the answer is right.

Rewrite the expression as the sum of two numbers. 4(5 + 8) A) 2(13) B) 9 + 32 C) 9 + 12 Eliminate D) 20 + 32

Answers

Answer:

D.

Step-by-step explanation:

4(5 + 8)

= 4*5 + 4*8

= 20 + 32

WILL GIVE BRAINLIEST TO BEST ANSWER, THANKS, 5 STARS!
PLEASE HELP!!
What are the zero(s) from the function f(x)=-4x^2-16x-12
(Select all that apply)
(4,0)

(-12,0)

(-4,0)

(1,0)

(-3,0)

(-1,0)

(3,0)

Answers

Answer: (-3, 0) and (-1, 0)

Step-by-step explanation:

[tex]-4x^2-16x-12[/tex]

[tex]\mathrm{Rewrite\:}-16\mathrm{\:as\:}-4\cdot \:4[/tex]

[tex]\mathrm{Rewrite\:}-12\mathrm{\:as\:}-4\cdot \:3[/tex]

[tex]=-4x^2-4\cdot \:4x-4\cdot \:3[/tex]

[tex]\text{Factor out common term -4}[/tex]

[tex]=-4\left(x^2+4x+3\right)[/tex]

[tex]x^2+4x+3[/tex]

[tex]=\left(x^2+x\right)+\left(3x+3\right)[/tex]

[tex]=x\left(x+1\right)+3\left(x+1\right)[/tex]

[tex]\mathrm{Factor \ out \ common \ term \ x+1}[/tex]

[tex]=\left(x+1\right)\left(x+3\right)[/tex]

[tex]=-4\left(x+1\right)\left(x+3\right)[/tex]

Roots:

x + 3 = 0    and    x + 1 = 0

x = 0 - 3               x = 0 - 1

x = -3                   x = -1

Therefore, the zeroes of the function are (-3, 0) and (-1, 0)

What is the range of the function y = e superscript 4 x y less-than 0 y greater-than 0 y less-than 4 y greater-than 4

Answers

The range of a function [tex]\rm y= e^4^x[/tex] is y>0; option second y > 0 is correct.  

It is given that the function [tex]\rm y= e^4^x[/tex]

It is required to find the range of a function [tex]\rm y= e^4^x[/tex]

What is a function?

It is defined as a special type of relationship and they have a predefined domain and range according to the function.

We have a function:

[tex]\rm y= e^4^x[/tex]

If we plot a graph of [tex]\rm y= e^4^x[/tex]:

When x = 0 then [tex]\rm y= e^4^\times^0[/tex] ⇒ 1

When x = 1 then  [tex]\rm y= e^4^\times^1[/tex] ⇒ 54.598  and so on.

The graph will exponentially go up as shown in the picture because the 'e' is the positive value(e=2.718) and the power of negative or positive values is never be a negative result.

Thus, the range of a function [tex]\rm y= e^4^x[/tex] is y>0; option second y > 0 is correct.  

Learn more about the function here:

brainly.com/question/5245372

Answer:

B, all real numbers less than 0

Step-by-step explanation:

edge 2022

Other Questions
Solve completely (all missing sides and all missing angles) using trig ratios or laws. Round to the nearest tenth. Lines a and b are parallel. what is the value of x?A) 15B) 16C) 56D) 64 What does smoove mean ? people poisoned by co2 are often given 100% o2 in a room with two to three times normal atmospheric pressure. explain why more oxygen would enter their blood under these conditions CHALLENGEACTIVITY1.6.1: Defining a class constructor.Write a constructor with parameters self, num_mins and num_messages. num_mins and num_messages should have a defaultvalue of 0.Sample output with one plan created with input: 200 300, one plan created with no input, and one plan created with input: 500My plan... Mins: 200 Messages: 300Dad's plan... Mins: Messages: 0Mom's plan... Mins: 500 Messages: 0Python please What does the 27 second count-down represent in the play the making of st. jerome How does self-motivation fit into the career readiness model?. A sample of bacteria cells in a petri dish increases by 50% every hour. A scientist starts with a sample of 30 bacteria cells. Write an equation that can be used to determine the number of cells after x hours Ponyboy doesnt tell Cherry about Mickey Mouse during their conversation at the theater. What impact does this have? Please help I'm struggling so bad right now If Mike Rowe isn't Anti-College then what is he anti of? In your opinion what do you think is the best anime game and why then put their sales. When you receive a loan, the money the lender gives you is called the ____________. a. interest b. line of credit c. principal d. collateral helpWriting a Scientific ArgumentWrite a scientific argument that answers the question Why is the liquid oxygen machine producing less liquid oxygen than normal? State your claim and use evidence to support it. For each piece of evidence you use, explain how the evidence supports your claim or refutes another claim. Remember to explain what happened at both the macro and molecular scales. define capacitance of a capacitor and state its SIbunit write a short story which begins with the sentence He couldn't believe his dream had finally come true . 100 words Pls help thanks to who ever does and please do NOT put links Imagine that you are tutoring a foreign exchange student who has no understanding about what creative nonfiction is. What are some of the main points that you would express to this student from the unit to help give them an overall picture about creative nonfiction writing? Graph the inequality of x>15 What kind of technology did the Mali Empire use ?