15
A researcher wants to determine if the behavior of children is alle
video games that have violent content. He asks the parents of 100 children in a
day care center how often each child plays video games and whether the video
games they play have violent content. The children are then allowed to play in
a controlled environment, such as the day care center's playground. Any violent
behaviors are then noted.
What type of study is the researcher conducting?
A. census
B. experiment
C. observational study
D. sample survey

Answers

Answer 1

Answer:

hey ok

Step-by-step explanation:

a


Related Questions

I will mark brainiest to whoever answers this!

Answers

Answer:

2

Step-by-step explanation:

......... . ........ .......

A pretzel stick measures 6 inches in length Mr Bates just took a bite of it and now it is 35% smaller Which of the following expressions can be used to
6(0.35)
6(0.65)
6-6 (0.35)
6- 6 (0.65)

Answers

Answer: B.

Step-by-step explanation: Mr. Bates made the pretzel 35% SMALLER. That means that the remains of the pretzel is 65% of the original 100% of the pretzel. Therefore, the answer is B.

the answer is B

it is 35% smaller which is another way of saying the pretzel is 65% of its original size. to find the new size we multiply it by .65 so the answer is B

3
4
5
I James Dove- Edwin
Brian bought 34 of ham from the grocery
store and lost of it once he left the
grocery store. How much ham from the
grocery store does Brian have left?

Answers

How many did he lose? Can you tell us how much he lost?

Sub to hudson moore among us gameplay

Answers

Answer:

okKkAyYy

Step-by-step explanation:

Please help with steps??? Question: Find the solution for a system of equations by elimination
2x- 3y=6
5x +7y = -14

Answers

Answer:

x = -84, y = -58

Step-by-step explanation:

2x - 3y = 6 --- Equation 1

Equation 1×5: 10x - 15y = 30 --- Equation 2

5x + 7y = -14 --- Equation 3

Equation 3×2: 10x + 14y = -28 --- Equation 4

I will eliminate 10x.

Equation 4-2:

10x - 15y - 10x + 14y = 30-(-28)

-y = 30+28

   = 58

y = -58

Substitute y  =-58 into Equation 1.

2x - 3y = 6

2x - 3(-58) = 6

2x - (-174) = 6

2x + 174 = 6

Find 2x.

2x = 6-174

    = -168

Find x.

x = -168 ÷ 2

x = -84

A school bought $548 in basketball equipment and uniforms costing $29.50 each. The total cost was $2,023. Write an equation you can use to find the number of uniforms the school purchased.
(a) what would the variable (x) represent in this problem?

(1) the cost of the uniforms
(2) the number of basketballs purchased
(3) The number of uniforms purchased


(b) what is the total cost of the equipment and uniforms? |____________| (no symbols)

(c) write an equation to represent this problem. use x as your variable. |___________|

Answers

Answer:

Step-by-step explanation:

PLZ HELPP!! ITS ALMOST DUE!!! ILL MARK BRAINLIEST!!

Answers

Answer:

-3x + 40

Step-by-step explanation:

The constant given is 40 gallons and the rate at which the water in the bathtub decreases is 3 gallons per minute.

To write this as an equation we model 40 as the starting constant that is positive and, because the water is decreasing, we use a negative slope.

-3x represents the decrease in water over x intervals (Which in this case is minutes) and 40 gallons represent the initial value (water in the bathtub).

Therefore the water in the bathtub can be modeled with the equation

-3x + 40

which one is proportional?

36/60=15/25
32/20=32/20

Answers

Answer:

the second one for sure

Evaluate the given expression. Subscript 10 Baseline C Subscript 4 Baseline times Subscript 4 Baseline C Subscript 2 a. 1,260 c. 1,275 b. 1,278 d. 1,270

Answers

Answer:

The answer is A: 1,260

Step-by-step explanation:

I took the test on Edge

Answer:

A-1,260

Step-by-step explanation:

1. A random sample of 200 items yields 35 that are non-conforming. Find the 90% confidence interval for the true population proportion non-conforming.

Answers

Answer:

(0.131) , (0.044)

Step-by-step explanation:

Given:

Total sample n = 200

Yield x = 35

Confidence level = 90%

Find:

Proportion non-conforming

Computation:

Proportion p = x / n

Proportion p = 35 / 200 = 0.175

Non Proportion q = 1 - p

Non Proportion q = 0.825

So,

z value of 90% is 1.64

So,

Proportion non-conforming

p ± [z√pq/n]

0.175 ± [1.64√(0.175)(0.825)/200

(0.131) , (0.044)

Step-by-step explanation:

what should she do do next yo find √42 to the nerest hundredth

( among us ) how many maps, most common name, best imp count 1,2,or3, best colors (top 3) you don't have all to much time so try to make it snappy

Answers

Answer:

2 maps, name noah, imp 2, color white, orange and yellow

Step-by-step explanation:

You have 72 grams of a radioactive kind of actinium. If its half-life is 6 hours, how much will
be left after 12 hours

Answers

Answer:

There will be 18 grams left after 12 hours.

Step-by-step explanation:

Half-life is the amount of time it take for a cell to turn from one condition to another.

To find the amount of grams for the first 6 hours.

72 ÷ 2= 36

Now, since 6 x 2 = 12, we need to divide 36 by 2 to find the next half-life.

36 ÷ 2 = 18

Therefore, there will be 18 grams left after 12 hours.

Hope this helps! :D

Find the circumference of the circle use 3.14 for
Pi Round to the nearest hundred put the answer in cm

Need ASAP if u don’t know the answer don’t answer

Answers

Answer:

47.1 cm

Step-by-step explanation:

The circumference of a circle is denoted by C = 2πr, where r is the radius.

Here, we see that the given radius is 7.5, so r = 7.5 cm. We also are given that we need to use the approximation 3.14 for π, so plug all these into the formula:

C = 2πr

C = 2 * 3.14 * 7.5 = 47.1

To round this to the nearest hundredth... well, there's no hundredth place, so we can leave this as is or just write 47.10 cm.

Thus, the circumference is 47.1 cm.

Graphically, a point is a solution to a system of two inequalities if and only if the point
A. lies in the shaded region of the top inequality, but not in the shaded region of the bottom inequality.
B. lies in the shaded region of the bottom inequality, but not in the shaded region of the top inequality.
C. lies in the shaded regions of both the top and bottom inequalities.
does not lie in the shaded region of the top or bottom inequalities.

Answers

Answer: C. Lies in the shaded region of both the top and bottom inequalities.

2222222222222222222222222222222222222222222222222222...

Answers

Answer:

222,222,222,222,222,222,222,222,222,222

Step-by-step explanation:

Intellegenc.

For the graph Y equals 1 find slope of a line that is perpendicular to it in the slope of a line parallel to it

Answers

Answer:

The answer is Undefined (∞).

Step-by-step explanation:

The line y = 1 has a slope of 0, and the line parallel to it, for instance, y = 3, has the same slope, m1 = 0. For the slope of the line perpendicular to that parallel line is m2 = -1/m1, which is -1/0 = ∞

Tommy had a rectangular strip of paper that is 21 cm long. If he cuts it into smaller pieces, each 2 1/3 cm long, how many pieces of paper will he have?

Answers

Answer:

The answer is 9.

Explanation: 21÷ 2 1/3= 9

Answer:

9

Step-by-step explanation:

Which linear inequality is graphed with y> -+-2 to create
the given solution set?
y>x+1
y y>x-1
y

Answers

Answer:

c

Step-by-step explanation:

Us
What is the mole fraction of KCl in an
aqueous solution that contains
26.3% KCI (weightweight %)?

Answers

Answer:

0.0794%

Subtract the 26.3 from 100 and get the amount for water giving you 73.7

Divide both from their molar masses

26.3/74.55=0.3528

73.7/18.016=4.0908

Add both answers, 0.3528+4.0908=4.4436

Divde the KCl total from the the total moles which gives you your final amswer

0.3528/4.4436=0.0794

Answer: 0.0794

Step-by-step explanation:

the diagram shows a wire attached to the top of a telephone pole. To the nearest foot, what is the height of the telephone pole?​

Answers

Answer:

60 feet

Step-by-step explanation:

Answer:

58 feet

Step-by-step explanation:

80x80 - 55x55 = 58.09

Essential Question 3-5, 7th Grade I WILL GIVE BRAINLIEST!
What does the graph of a proportional relationship look like?

Answers

Answer:

It is a straight line because the x and y values are proportional.

Step-by-step explanation:

Answer:

it looks like a straight line thru the origin

The pentagons ABCDE and PQRST are similar
Find the length x of RS.
B
E
R
Х
?
Continue

Answers

Answer: X or SR = 3.6

Step-by-step explanation: Simply divide TP and EA or one of each similar segments to get a number. Which 4.8 / 4 = 1.2 Then multiply this number by 3 to get your answer of x which is 3.6

Paul needs to randomly select one of his four children to go first in a board game. Which simulation tools could he use in this situation?

1. a spinner divided evenly into 12 sections, with three sections each of four different colors. - Correct
2. a bag containing 12 chips in two different colors, with six of each color.
3. a standard deck of cards.
4. two coins -Correct
5. a six-sided number cube

Answers

Answer:

1/3/4 are all correct

Step-by-step explanation:

For Paul to select 1 of his 4 children, the simulation tool must have the possibility of giving a result of 1/4 (i.e. 1 in 4 children). The simulation tools capable of these results are: (1), (3) and (4)

To determine which simulation tool is correct for the situation, we simply put each option to test.

Option (1)

[tex]Sections = 12[/tex]

[tex]Sub= 3[/tex]

Here, the simulation is done by calculating the probability of each subsection.

The probability is:

[tex]Pr = \frac{Sub}{Sections}[/tex]

[tex]Pr = \frac{3}{12}[/tex]

Simplify

[tex]Pr = \frac{1}{4}[/tex]

Option 2

[tex]Chips =12[/tex]

[tex]Sections = 2[/tex]

Here, the simulation is done by calculating the probability of each section.

The probability is:

[tex]Pr = \frac{Sections}{Chips}[/tex]

[tex]Pr = \frac{2}{12}[/tex]

Simplify

[tex]Pr = \frac{1}{6}[/tex]

Option 3

A standard deck has:

[tex]Cards = 52[/tex]

[tex]Suit = 13[/tex]

Here, the simulation is done by calculating the probability of each suit.

The probability is:

[tex]Pr = \frac{Suits}{Cards}[/tex]

[tex]Pr = \frac{13}{52}[/tex]

Simplify

[tex]Pr = \frac{1}{4}[/tex]

Option 4

[tex]Coins = 2[/tex]

Here, he needs to toss the coin 2 times. So, the possible sample space are:

[tex]S = \{HH, HT, TH, TT\}[/tex]

The probability of one of the outcomes is:

[tex]Pr = \frac{1}{n(S)}[/tex]

Where:

[tex]n(S) = 4[/tex] ---- number of outcomes

So:

[tex]Pr =\frac{1}{4}[/tex]

Option 5:

[tex]Sides =6[/tex]

The probability of getting 1 of the 6 faces is:

[tex]Pr = \frac{1}{6}[/tex]

Paul can only use simulations that give 1/4. Hence, (1), (3) and (4) are correct because they all equal 1/4.

Read more about probability simulation at:

https://brainly.com/question/11740786

a man buys eggs at RS 9.60 per dozen and sell 20 eggs for RS 18 what is his gain or loss percen?​

Answers

Answer:

88.89%

Step-by-step explanation:

Step one:

given

a man buys eggs at RS 9.60 per dozen

what is the unit cost of the dozen of eggs?

unit cost = 9.60/12

= $0.8 per egg

He sold 20 eggs for RS 18

the unit selling price = 18/20

=$0.9 per egg

the percent gain is

=0.8/0.9*100

=0.888*100

=88.89%

What is over 1/3÷1/4?

Answers

Answer:

4/3

Step-by-step explanation:

Answer:

this is the correct answer 4/3

ASAP I'LL GIVE BRAINLIEST ​

Answers

Answer:

ITS A THE FIRST ONE

Step-by-step explanation:

Help what is 95.28 ➗ 1.2​

Answers

Answer:

79.4

Step-by-step explanation:

Answer:

You know a calculator is a thing, right?

Anyways though, the answer is 79.4.

Step-by-step explanation:

2/3(1 + n) = -1/2 What is the value of n

will mark brainliest

Answers

Answer:

n = -1.75

As a fraction = -7/4

Step-by-step explanation:

I really do not understand and need the answer!

You have just been hired as New York’s premier Real Estate Agent! In your company, you will make a 7% commission. The real estate market in New York is booming! As the realtor calculates your potential commission if you sell the property for the list price.
If the listing price for Candy Cane Creek is $864, 550, how much commission would you receive?

Answers

Answer: $60,518.50

Step-by-step explanation: Multiply 864,550 and 0.07 because you need to find the commision.

Answer:

Hello

Step-by-step explanation:

17.
Which of the following are equiangular quadrilaterals?
a. parallelogram and rectangle
b. trapezoid and rhombus
c. square and rhombus
d. square and rectangle
e. none of these

Answers

d. Square and rectangle
c. square and rhombus
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