while standing in front of the school, jace recorded the number of students who walked, rode their bikes, took the bus, and were driven there.

Answers

Answer 1

This is an observational study because this is taken as observing all possible ways.

What is observational study?

An observational review is utilized to respond to an exploration question dependent simply upon what the scientist notices. There is no impedance or control of the examination subjects, and no control and treatment gatherings. These examinations are much of the time subjective in nature and can be utilized for both exploratory and logical examination purposes. In observational examinations, the analyst isn't permitted to control anything. They just notice and gather patterns inside the set up and hypothesize from those outcomes. Observational examination takes into consideration more precise information assortment, eliminating predispositions and inspecting blunders. Notwithstanding, it tends to be tedious because of extended periods of time of dormancy.

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Related Questions

two cruise ships leave port at the same time. ship a sails north at a speed of 60 mph while ship b sails east at a speed of 50 mph.

Answers

Answer: y= 60x, y=50x

Step-by-step explanation:

Please Provide the whole question

What is the break-even quantity for the following situation? fc = $1,400 per week vc = $2 per unit rev = $6 per unit group of answer choices 100 600 1,400 350 250

Answers

According to the question, to calculate break-even quantity with the given data. And the data is in dollars which is as follows:

Fixed cost (f(c)) = [tex]$1400[/tex] per week;

Variable cost (v(c)) = [tex]$2[/tex] per unit

Revenue = [tex]$6[/tex] per unit

Let us consider the break-even quantity to be ‘a’.

As per break-even point formula: Total costs = Total Revenue

And Total costs = Fixed cost + variable cost ;

      Total Revenue = (price per unit)(quantity sold)

Using above formulas, the above expression can be re-written as:

Fixed cost + variable cost = (price per unit)(quantity sold)

[tex]($1400)+($2a) = ($6a)[/tex]

[tex]4a = 1400[/tex]

[tex]a = 350[/tex]

Therefore, the break-even quantity is [tex]350[/tex] units.

What is the break-even quantity?

Break-even quantity in the firm is the incremental value which is used to sell in order to cover the cost of the marketing program or other companies investments. And in this, the total cost is equal to the total revenue.

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True or False? If a grapefruit cost
$0.32 in 1984 and $0.64 in 2006,
then it must have cost $0.48 in
1995.

Answers

Answer:

False

Step-by-step explanation:

Without a graph, figure, or any other context the cost of grapefruit in 1995 in not related to the other years by any other facts or figures.

scores on the act college entrance exam follow a bell-shaped distribution with mean 21 and standard deviation 5. wayne’s standardized score on the act was −0.6. what was wayne’s actual act score?

Answers

Wayne's actual act score is 18

A z-score tells you where the score lies on a normal distribution curve.

A standard deviation is a measure of how dispersed the data is in relation to the mean.

Mean is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers.

Given,

The mean = 21

Standard deviation =5

z-score = -0.6

We know z-score = (x-mean)/ Standard deviation

Substitute the values

-0.6 = [tex]\frac{x-21}{5}[/tex]

x-21 = -0.6 ×5

x-21 = -3

x=-3+21

x=18

Hence, the Wayne's actual act score is 18

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a newspaper company is selecting four houses to receive a free newspaper on your block. there are 10 houses on your block that are numbered 1-10. what is the probability that the four houses selected for a free newspaper will all be even numbered houses?

Answers

The probability that the four houses selected for a free newspaper will all be even numbered houses is: 1/42.

What is probability?

Probability refers to the possibility of the occurrence of an event.

P(E) = probability of occurrence of an event E = Number of favorable outcomes, divided by total number of outcomes

Now, according to question,

There are 10 houses numbered 1-10. Thus the number of even numbered houses = 5 (2, 4, 6, 8, 10)

The probability that the first selected house for free newspapers is even numbered = 5/10 = 1/2

The probability that the second selected house for free newspapers is even numbered = 4/9

The probability that the third selected house for free newspapers is even numbered = 3/8

The probability that the fourth selected house for free newspapers is even numbered = 2/7

The final probability that the four houses selected for a free newspaper will all be even numbered houses is = 1/2(4/9)(3/8)(2/7) = 1/42

Hence, The probability that the four houses selected for a free newspaper will all be even numbered houses is: 1/42.

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What is the value of −3 + |−17|?

20
14
−14
−20

Answers

Answer:

b) 14

Step-by-step explanation:

Given problem,

→ -3 + |-17|

Let's solve the problem,

→ -3 + |-17|

→ -3 + 17

→ 14

Hence, the answer is 14.

cly cloudy
Watch help video
Solve for x, rounding to the nearest hundredth.
110 • 10^4x = 55

Answers

[tex]110\cdot 10^{4x}=55\implies 10^{4x}=\cfrac{55}{110}\implies 10^{4x}=\cfrac{1}{2}\implies 10^{4x}=2^{-1} \\\\\\ \log\left( 10^{4x} \right)=\log\left( 2^{-1} \right)\implies 4x\log_{10}\left( 10 \right)=-1\log_{10}(2)\implies 4x(1)=-\log(2) \\\\\\ 4x=-\log(2)\implies x=-\cfrac{\log(2)}{4}\implies {\LARGE \begin{array}{llll} x\approx -0.08 \end{array}}[/tex]

Write an algebraic expression that models the situation.
Jenny had $105, but she is spending $13 per week.

Answers

The algebraic expression that models the situation when Jenny had $105, but she is spending $13 per week is 105 - 13w.

How to calculate the value?

Let the number of weeks be represented by x

Therefore, since Jenny had $105, but she is spending $13 per week, the appropriate expression will be:

= 105 - (13 × w)

= 105 - 13w

The expression is 105 - 13w.

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charlotte denning earns both $13/hour and $26 for every sale she completes. during the most recent week, she worked 47 hours and made a total of 71 sales.

Answers

Answer: nice for her

Step-by-step explanation:

PLEASE HELP ASAP!! WILL MARK BEAINLIEST

Answers

Answer:

1. x = 2/3y + 8/3

2. x=−y+1

Step-by-step explanation:

Solve for x

3x−2y=8

Add 2y to both sides.

3x−2y+2y = 8+2y

3x=2y+8

Divide both sides by 3.

3x/3 = 2y+8/3

x = 2/3y + 8/3

Answer:

x = 2/3y + 8/3

#2

solve for x.

x+y=1

Add -y to both sides.

x+y+−y=1+−y

x=−y+1

Answer:

x=−y+1

solve for y.

x+y=1

Add -x to both sides.

x+y+−x=1+−x

y=−x+1

Answer:

y=−x+1

Sorry if this is too much

A lecture hall has 50 seats.
43 seats are occupied and 7 seats are empty.

Use this information to answer the questions below.

Answers

Answer:14% of the seats are empty

Step-by-step explanation:

7/50 = ?/100

50×2=100

so 7×2=?

?=14

14/100=14%

For every left handed person, rhere are about 4 right handed people. If there are 30 students in a class, predoct the number of students who are right handed

Answers

Answer:

4 right handlers for everytime 5 people

solution:

4/5. = x/30

x = (4)(30)/5

x= 24

there are 24 right handed people

Step-by-step explanation:

I am left handed so I know this is true :)

What are the zeros of the polynomial function?

Select all correct zeros of each function.

Answers

The zeroes of the polynomial functions are listed below:

Roots: 2, 3, - 1. Roots: 3, - 2 (multiplicity 2), 1 Roots: 0 (multiplicity 3), 2, - 3.

How to determine the zeros of a polynomial

Polynomials are algebraic constructions whose form is summarized by the following sum:

p(x) = ∑ cₙ · xⁿ, for n ∈ {0, 1, ..., m}

An alternative form to describe polynomials is using products of binomials of the form (x - r), where r is a root (zero) of the polynomial. The root of the polynomial is a value such that the result of the expression is equal to zero.

Then, we proceed to find the zeros of each polynomial function:

1) f(x) = 2 · x · (3 - x) · (x + 1). Roots: 2, 3, - 1.

2) f(x) = 2 · (x - 3) · (x + 2)² · (x - 1). Roots: 3, - 2 (multiplicity 2), 1

3) f(x) = x³ · (x - 2) · (x + 3). Roots: 0 (multiplicity 3), 2, - 3.

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what does the remainder theorem conclude given that f(x)x 5 has a remainder of 17?enter your answer by filling in the boxes.

Answers

The remainder theorem conclude given that F(-5)=17

When, x= -5

x+5=0

So, F(-5) = 17

What is Remainder Theorem explain?

According to the remainder theorem, the result of dividing p(x) by (x - a) is p. (a). According to the factor theorem, (x - a) can only be a factor of p(x) if f(a) = 0. It is used to locate the rest. A linear polynomial's status as a factor of the input polynomial is determined using this method.

The remainder theorem is used to calculate the remainder when a polynomial is split by a linear polynomial. We are aware that long division of polynomials can be used to find the remainder after dividing one polynomial by another. The remainder can instead be discovered using the remainder theorem.

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If a number is a natural number then it is also a whole number inverse Converse contrapositive and biconditional truth value

Answers

For the conditional statement, we have that:

The inverse is: If a number is not a natural number, then the number is also not a whole number, which has a false truth value.The converse is: If a number is a whole number, then it is also a natural number, which has a false truth value.The contra-positive is: If a number is not a whole number, then it is also not a natural number, which has a true truth value.The bi-conditional is: A number is a natural number if, and only if, it is also a whole number, which has a true truth value.

What is the conditional statement?


The conditional statement has the following format:

p -> q.

For this problem, we have that the events are given as follows:

p: natural number.q: whole number.

Hence p -> q is a true statement, as the set of whole numbers are the naturals plus the 0.

What is the inverse of the statement?

The inverse is given by:

~p -> ~q.

In which ~ represents the negation symbol.

Hence:

If a number is not a natural number, then the number is also not a whole number.

This statement has a false truth value, as the number 0 is whole but not natural.

What is the converse of the statement?

The converse is given by:

q -> p.

Hence:

If a number is a whole number, then it is also a natural number.

This statement has a false truth value, as the number 0 is whole but not natural.

What is the contra-positive of the statement?

The contra-positive is given by:

~q -> ~p.

Hence:

If a number is not a whole number, then it is also not a natural number.

This statement has a true truth value, as all natural numbers are whole numbers.

What is the bi-conditional of the statement?

The bi-conditional is given by:

p <-> q

In which <-> represents the term if, and only if.

Hence:

A number is a natural number if, and only if, it is also a whole number.

This statement has a true truth value, as all natural numbers are whole numbers.

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8 1/3 × 3

porfa qué alguien me ayude :( ​

Answers

Answer:

es 25

Step-by-step explanation:

a light is suspended at a height h above the floor. the illumination, i, at a point p is inversely proportional to the square of the distance, r, from the point p to the light and directly proportional to the cosine of the angle theta. assume k is the constant of proportionality. which of the following can be used to represent the illumination at point p? i

Answers

a light is suspended at a height h above the floor. the illumination, i, at a point p is inversely proportional to the square of the distance, r, from the point p to the light and directly proportional to the cosine of the angle theta , I = k cos x / r² can be used to find the illumination at point p.

Light must be at the height of 7.07 for maximum illumination.

I = k cos x / r²

r² = h² + 10²

cos θ = h / [tex]\sqrt{h^{2} +10^{2} }[/tex]

then

I =  [tex]k \frac{h}{(h^{2} + 100)^{2/3}}[/tex]

on differentiating, we get,

[tex]\frac{dI}{dh} = k\frac{h^{2} + 100^{3/2 - 3h^{2}(h^{2} + 100 )^{1/2} } }{(h^{2} +100)^{3} }[/tex]

[tex]= k\frac{100 - 2h^{2} }{(h^{2} + 100)^{5/2} } \\\frac{dI}{dh} = 0\\ It gives that \\h = \sqrt{50} = 7.07\\on differentiating again,\\\frac{d^{2} I}{dh^{2} } = k \frac{(6h^{3} - 900h )}{(h^{2} + 100)^{7/2} }[/tex]

for h = 7.07,

[tex]\frac{dI^{2} }{dh^{2} } = -10267.6[/tex]

So , we can conclude that the light must be at the height of 7.07 for maximum illumination.

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When sampling from the population of interest, it is a good idea to have a representative sample. True or false?.

Answers

Answer: True, common sense dictates this.

Answer: true

Step-by-step explanation:

What is a rounded to the nearest hundredth

Answers

I assume you are meaning what does round to the nearest hundredth mean. If that is the case it means that u round to the hundredth place. For example, .018. Since the 1 is the hundredth place but the number next to it is 5 or higher it will turn to a 2. So .018 would be .02

Help please thank you

Answers

From the given integer numbers, the states that have temperatures within 10ºC of Delaware are: California, Hawaii and Idaho.

Which states have temperatures within 10ºC of Delaware?

The temperature in Delaware is of 5 ºC, hence for our range, we have that:

The lower temperature is of 5 - 10 = -5ºC.The higher temperature is of 5 + 10 = 15ºC.

Alaska(< -5), Tennessee(>15) and WV(<-5) do not have temperatures in this range, hence the states that have temperatures within 10ºC of Delaware are: California, Hawaii and Idaho.

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HURRYY!! BEST ANSWER GETS BRAINLIEST!!

15. The dimensions of a cylindrical can are shown below.
1
10 in.
3 in.
What is the volume of the can, in terms of ?
A. 60 π cubic inches
TL
B. 90 cubic inches
C. 30 π cubic inches
D. 18 π cubic inches

Answers

Answer:

volume of cylinder is πr²h so whatever your radius is then square it multiply by height. don't multiply by pi as it gives it to you in the answer

Determine the x- and y-coordinates of a point through which the resultant of the parallel forces passes.

Answers

The resultant of the parallel force passes, x=2.8888 in and y=-5.4444 in

Taking moment about 'y'

∈Mx=RXx

x=260/90

x=2.8888 in

Taking moment about 'x'

∈My=RXy

y= -490/90

y= -5.4444 in

What is the example of parallel forces?

When two forces of equal strength act in the same direction within the same plane, with the counterforce in the centre, this is known as a parallel force system.

A see-saw is an illustration of this. The fulcrum in the middle provides the counterforce to keep the seesaw in a neutral position while the children apply the two forces at the ends. The significant vertical forces on an aeroplane while it is in flight is another illustration (see image at right).

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You want your daily sodium intake to be less than 2300 milligrams. For breakfast, you eat a cereal bar with the nutrition label shown. What are the possible amounts of sodium you can eat during the rest of the day? Nutrition Facts Serving Size Servings Per Container Amount Per Serving Calories 120 Total Fat 3g 1 Bar (37g) Calories from Fat 30 % Daily Value* 5% 3% Saturated Fat 0.5g Trans Fat Og Cholesterol Omg Sodium 125mg 0% 5% The possible amounts of sodium you can eat during the rest of the day should be less than mg​

Answers

Subtracting the maximum sodium intake from the intake of the cereal bar, you can eat amounts of sodium less than 2,175 mg of sodium the rest of the day.

How to find the amount of sodium you can eat during the rest of the day?

From the text, the intake has to be less than 2300 mg. From the table, each cereal bar has 125 mg of sodium.

You eat one cereal bar, hence the remaining amount you can eat is found as follows:

2300 - 125 = 2,175.

You can eat amounts of sodium less than 2,175 mg of sodium the rest of the day.

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Show full work please

Answers

The temperature in degrees celcius in which bacteria cannot survive is greater than 3.66

Subject of formula

This is a way of representing a variable with another

Given the inequality below;

q/5 C + 32 ≥ 120

Substitute C = 120oF

q/5(120) + 32  ≥ 120

24q + 32 ≥ 120

24q  ≥ 120 - 32

24q  ≥ 88

q ≥ 88/24

q ≥ 3.66

Hence the temperature in degrees celcius in which bacteria cannot survive is greater than 3.66

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What is the range?
0-5 -6 -4 -3

Answers

Answer: 2 I think

Step-by-step explanation:

can you solve for x −68<8x−4<−36

Answers

Answer:

- 8 < x < - 4

Step-by-step explanation:

- 68 < 8x - 4 < - 36 ( add 4 to each interval )

- 64 < 8x < - 32 ( divide each interval by 8 )

- 8 < x < - 4

3. You have $2.75. You want to buy trading cards that cost $0.25 each.
How many can you buy?

Answers

Question:

You have $2.75. You want to buy trading cards that cost $0.25 each.

How many can you buy?

Answer:

11 trading cards

Step-by-step explanation:

If you do 2.75 ÷ 0.25 you would get 11 and to check the answer you could simply multiply you would do 0.25 x 11 to get the answer 2.75.

I hope it helps you!

~XxBells is a cute girlxX~

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What is the five number summary for this data set 9,14,15,18,20,22,29,36,36,42,45,51

Answers

Answer:

Min = 0

Max = 51

M = 25.5

Q1 = 16.5

Q3 = 39

Hope this helps! <3

13. Find the coordinate for the point that is 1/6 the
distance from A to B.
A
-5
B
37

Answers

the answer is -5 or maybe 37

Please help I need to get this one question right so I can pass my lesson

Answers

Answer:

I think the answer is

Statement A

Step-by-step explanation:

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