A study in which conditions are under the direct control of the investigator.

Answers

Answer 1

Answer:

Experimental study

Step-by-step explanation:


Related Questions

Which sets of side lengths could form a triangle? Choose all that apply.
4cm, 6cm, 9cm
3cm, 4cm. 9cm
4cm, 5cm, 9cm
5cm, 5cm, 9cm
3cm, 6cm, 9cm

Answers

Answer:

4, 6, 9 and 5, 5, 9

On Tuesday 194 first graders, 225 second graders, and 187 third graders bought lunch. What is the best estimate of the number of students who bought lunch? O A. 650 B. 600 O C. 550 D. 500 E. 400​

Answers

Answer:

a or b but more b lol

Step-by-step explanation:

Answer:

i would say the answer is b.

Step-by-step explanation:

what is 31=xy+15? for segment addition

Answers

Answer:

x = 16/y

or

y =16/x

Step-by-step explanation:

31=xy+15

subtract 15 from both sides of the equation:

xy = 16

x = 16/y

or

y =16/x

How do I do this? I don't Understand.​

Answers

the answer is 151

360- every number there is 151

On a map, 0.5 inches represents 30 miles. If it is 2.5 inches from point A to point B on the map, what is
the actual distance in miles?

Answers

Every 0.5 inches is 30 miles

If you have 2.5 inches that is 5 times 0.5inches

Then 5 times 30 miles is 150miles

CAN SOMEONE PLEASE HELP ME WITH THIS??

Answers

Answer:

6^5 * a^3 * b ^2

Step-by-step explanation:

6 occurs 5 times in this equation

so it would be 6^5 (6 to the 5th)

a occurs 3 times in this equation

so it would be a^3 (a to the 3rd)

b occurs 2 times in this equation

so it would be b^2 (b to the 2nd)

Answer:

6*4

b*2

a*3

Step-by-step explanation:

Carly went to walk her dog at 11:45 a.m. and got back home at 12:30 p.m. How long
was her walk

Answers

Answer:

45 minutes

Step-by-step explanation:

Si el lunes es el marte del miercoles y el jueves es el viernes del sabado, ¿que dia sera el domingo del lunes?

Answers

Translated : If Monday is Wednesday's Tuesday and Thursday is Saturday's Friday, what day will Monday be Sunday?

Anwser: Sunday will be monday

The sum of three numbers is 41.the second number is 5 times the first.the third number is 14 less than the second.what is the third number?

Answers

Answer:

the third number is 11

Step-by-step explanation:

the first number is 5 so the second number since its five times the first is 25 and the third being 14 less then the second is 11

so 5+25+11= 41

what is the value of x? tangent lines acellus

Answers

Answer:

30°

Step-by-step explanation:

the three interior angles of a triangle add up to 180, so 60° + 90°+ 30° just works. Sorry it's such a bad explanation, but the answer works . I have acellus too and I entered the answer before answering your question.

The box and whisker plots represent the number of minutes spent by users on two different social media groups. Which THREE statements are correct when comparing the plots?

A) The median time for users of Group B is 40 minutes.

B) Group B has greater median value than Group A.

C) The data for Group B varies slightly more than Group A.

D) The spread of the data for Group A is 25 minutes.

E) The spread of the data for Group A is 40 minutes. ​

Answers

Answer: I feel the answer is C

Step-by-step explanation:

The three statements that are correct when comparing the box and whisker plots for the two groups are: A, C, and D.

What is a box and Whisker plot?

A box and whisker plot displays the minimum value, lower quartile (Q1), median, upper quartile (Q3), and maximum values of a data set.

Let's analyze each of the given statements given the box and whisker plots for both groups:

Statement A is TRUE:

Median time for Group B = 40.

Statement B is FALSE:

Median value for Group A is between 45 and 50

Median value for Group A is 40.

Therefore, Group B does NOT have median value greater than Group A.

Statement C is TRUE:

The interquartile range (IQR) for Group A and Group are similar, therefore, data for Group B varies slightly more than Group A.

Statement D is TRUE while E is FALSE:

Spread for Group A (IQR) = 55 - 30 = 25 minutes

Therefore, the three statements that are correct when comparing the box and whisker plots for the two groups are: A, C, and D.

Learn more about box and whisker plot on:

https://brainly.com/question/12343132

Cynthia rounds a number, x, to one decimal point.
The result is 6.3

Write down the error interval for x.

Answers

Answer:

[6.26,6.29]U[6.31,6.34

Step-by-step explanation:

6.26

6.27

6.28

6.29

6.31

6.32

6.33

6.34

So in interval form [6.26,6.29]U[6.31,6.34]

I f m<4=30 degrees, find m<3

Answers

m<3=60°

Answer:

m<4+m<3=90° each angle of rectangle is 90°

m<3=90-30=60°

A survey is conducted at two junior high
schools asking students about the number of
sodas they consume each day.
Sodas Consumed Per Day
HE
Junior High
Junior High B
1
Based on the data shown in the graphs,
which statement is true?​

Answers

Answer:

A

Step-by-step explanation:

You people my pl

Mila owns a small business selling used books. She knows that in the last week 83 customers paid cash, 16 customers used a debit card, and 41 customers used a credit card. Based on these results, express the probability that the next customer will pay with something other than a credit card as a decimal to the nearest hundredth

Answers

Answer:

the answer is 0.71

Step-by-step explanation:

it told me

The probability the next customer will pay with something other than a credit card is 0.71.

What is probability?

Probability deals with the occurrence of a random event. The chance that a given event will occur. It is the measure of the likelihood of an event to occur.The value is expressed from zero to one.

For the given situation,

Number of customers paid cash = 83

Number of customers used a debit card = 16

Number of customers used a credit card = 41

Total number of customers = 140

The probability that the next customer will pay with something other than a credit card is

P(e) = (Number of customers paid cash + Number of customers used a  debit card) / Total number of customers.

⇒ [tex]P(e)=\frac{83+16}{140}[/tex]

⇒ [tex]P(e)=\frac{99}{140}[/tex]

⇒ [tex]P(e)=0.7071[/tex] ≈ [tex]0.71[/tex]

Hence we can conclude that the probability the next customer will pay with something other than a credit card is 0.71.

Learn more about probability here

https://brainly.com/question/16813543

#SPJ2

Please tell me the expression to this

Answers

Answer:

5(5x+11)

Step-by-step explanation:

Answer: 5(5x+11)

Step-by-step explanation:

What multiplies to be 25x, 5 and 5 x is the answer, 5 goes on the left because of the next step which is what times what equals 55. 5 times 11 equals 55. So 11 is on the top while 5 is on the left,

Please help, I don't get this

Answers

Answer:

The answer is c

Step-by-step explanation:

My college brother told me this is the answer if it isn't I'm sorry but it's his fault

Evaluate:
-│-23│ = ____

Answers

Answer:

-23

Step-by-step explanation:

Using the absolute rule,

[tex]\left|-a\right|=a[/tex].

Therefore,

[tex]-|-23|=-23[/tex]

(It becomes 23 first, but then you stick the negative sign after)


PLEASE HELPPP!!!
explain how you know!

Answers

Answer:

Negative

Step-by-step explanation:

-2.7+x=-3.5

x=-3.5+2.7

x=-0.8

can someone help me please ​

Answers

Answer:

a) 2/3 fraction is shaded.

b) 66.67% is shaded.

Discriminant 9v^2+v+5=0

Answers

Answer:

-179, since it is negative then there are no real roots

Step-by-step explanation:

b²-4ac is the discriminant formula

9v² + v + 5 = 0  ∴  a = 9, b = 1, c = 5

1² - 4(9)(5) = -179

What is the measure of ∠ZXW in the diagram below?

Answers

Answer:

I tuhnk it's C which is 117

Step-by-step explanation:

I got 117 by 85 degrees adding 32 degrees which I got 117 degrees.

subtract the cube root of the product of h and 3k from the square of the sum of p and q​

Answers

Answer:

(p + q)²            -          ∛(h·3k)   or   (p + q)² - ∛(h·3k)  

Step-by-step explanation:

Cube root of x:  ∛x

Product of h and 3k:  h·3k

Sum of p and q:  p + q

*****************************

From (p + q)²      subtract ∛(h·3k)      This becomes, symbolically:

=>       (p + q)²            -          ∛(h·3k)

I'LL GIVE BRAINLIEST PLEASE ANSWER ALL FOUR PLEASE

Answers

Answer:

Step-by-step explanation:

1.) 700*0.42 = 294. Out of the 700 people at the concert, 294 are tennagers.

2.) 1.07*$450 = $481.50, including sales tax (final price)

3.) 120/(100%-85%) = 120/0.15 = 800. Original amount of water is 800 ml (Check by 800mL*0.15, which equals 120 mL)

4.) 100-35-45 = 20%

250*20% = 50; Out of the 250 sandwiches, Josh made 50 ham sandwiches.

Andrea uses 9.2 pints of white paint and blue paint to paint her bedroom walls. 3/5 of this
amount is white paint, and the rest is blue paint. How many pints of blue paint did she use to
paint her bedroom walls? 1)

Answers

Answer:

You'd need 2/5 of 9.2 pints of blue paint

2/5 * 9.2 = .4 * 9.2 = 3.68 pints of blue paint

Step-by-step explanation:

=3+(__+30)
=3+__)+30
__+30
=

Answers

Well the answer is complicated but here I go...

3+ 30 + 3 + 30 + 30 = 96?

Sally want to open a bakery. One of the things that she is going to sell is bagels. Sally asked people what type of bagels are their favorite. Out of the 200 people that she asked, 23 said that raisin cinnamon was their favorite. Sally plans bake 1200 bagels a day. How many should be raisin cinnamon?

Answers

Answer:

138

Step-by-step explanation:

200 x 6 = 1200

23 x 6 = 138

Answer:

138

Step-by-step explanation:

Divide 23 by 200

23÷200=0.115

Multiply 0.115 by 1200

0.115*1200=138

you planted sunflower seeds in your backyard and everyday the number of flowers doubles if it takes 42 days for the flowers to fill the garden how many days would it take for them to fill half of the garden
Plz HELPPP]PPPPPPPPPPPPPPPP

Answers

Answer:

41

Step-by-step explanation:

hello please help i’ll give brainliest

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: 1/2

Explanation:

1/4 - (-1/4) = 1/4 + 1/4 = 1/2

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Which of the following could be the answer to a statistical question?
А 10
B Yes
C "December 18th"
D 2. 18. 32. and 40"
help I will mark you ​

Answers

Answer:

the solution would be 10 to the best of my knowledge

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