URGENT!!! HELP! Will give brainliess if correct :))

Which option is an example of an experiment?

A. Counting how many times two sixes are rolled if two dice are
rolled 100 times

B. Testing the effectiveness of a new dog training class by allowing
one group to use it and comparing results against a control group that doesn't use it

C. Asking moms how many times a week teenagers must be
reminded to do their chores

D. Asking students in a school how much time they spend exercising

Answer:  4(5z−2)

Step-by-step explanation: Brainliest pls

The expression that is equivalent to the given statement was reduced.

The given expression is:

\(\frac{(3m^{-2}n)^{-3} }{6mn^{-2} }\)

Some important power rules are:

\((ab)^n=a^nb^n\)

\((a^{m} )^n=a^{mn}\)

\(a^m.a^n=a^{m+n}\)

\(\frac{a^m}{a^n} =a^{m-n}\)

\(a^{-m} =\frac{1}{a^m}\)

So, the given expression can be written as:

\(\frac{3^{-3} m^{6} n^{-3} }{6mn^{-2} }\)

=\((\frac{3^{-3} }{6} )*(\frac{m^{6} }{m} )*(\frac{n^{-3} }{n^{-2} } )\)

=\((\frac{1}{3^{3} *6} )*m^{5} *(\frac{1}{n^{3} *n^{-2} } )\)

=\(\frac{m^5}{162n}\)

Hence, the expression that is equivalent to the given statement was reduced.

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The number of measurements, and the mode being the most frequently occurring value among the snowfall measurements.

The mean, median, and mode are all useful measures of central tendency when researching the amount of snowfall in Cleveland from December to February. The mean is calculated by adding up all of the snowfall measurements and dividing that by the number of measurements. For example, if there were 4 snowfall measurements of 10, 20, 30 and 40 inches, the mean would be 25 inches (10+20+30+40 / 4). The median is the middle value of the snowfall measurements when they are arranged from least to greatest. In this example, the median would be 25 inches as well. The mode is the most frequently occurring value among the snowfall measurements. In this example, the mode is also 25 inches.

The mean, median and mode are all useful measures of central tendency when researching the amount of snowfall in Cleveland from December to February, with the mean and median being calculated by adding up all of the snowfall measurements and dividing that by the number of measurements, and the mode being the most frequently occurring value among the snowfall measurements.

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Answer:

5 - 6

(b) since 5 is lesser than 6

the answer is -1

if the question was the other way round; 6 - 5 is 1

Answer:

Step-by-step explanation:

label sides adjacent h and o

sin(30) times 12 = 6 = 10

Answer:

increase in thermal energy

Step-by-step explanation:

because if you increase the thermal/heat energy ten the solid will turn into liquid and same goes for liquid to solid evaporation for example the heat from the sun will make the water turn into clouds or gas

The equation which represents the function is y=-1/3x

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

We have to find equation of line passing through points (-9, 3) and (-12, 4)

slope = 4-3/-12+9

=1/-3

=-1/3

Now let us find y intercept

3= -1/3(-9)+b

3=3+b

b=0

Hence, the equation which represents the function is y=-1/3x

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Answer:

7x

Step-by-step explanation:

You add the two numbers and bring over your variable.

Answer:

N:ki n:kn:kNN

Step-by-step explanation:

Answer:

Remember the maximum height will be at the vertex. The x value of the vertex is your time, so use x=-b/2a. Then if it had also asked what the height was, you would plug that answer into your equation to find the y value of the vertex. Pretty sure your teacher is just asking you to find the x though:)

Step-by-step explanation:

Answer:

a. 80%

b. £34

c. £340

Step-by-step explanation:

a. We are given that Mrs Trent spent 20% of her weekly wage on food. This means she would have 80% of her weekly wage left with her.

b. 10% of Mrs Trent weekly wage:

If 20% = £68

10% = (10*68)/20 = £34

c. Let x represent weekly wage of Mrs Trent

Given that she spends £68 of x (weekly wage) on food, which is 20% of x.

This means that, 20% of x = £68

Let's find her weekly wage, x:

\( \frac{20}{100} * x = 68 \)

\( 0.2x = 68 \)

Divide both sides by 0.2

x = 340

Her weekly wage is £340.

Answer:

a) 80%

b) £34

c) £340

Step-by-step explanation:

A -

100% - 20% = 80%

B -

68 = 20%

34 = 10%

c -

34 = 10%

340 = 100%

as you times both sides by 10

I hope this helps :)

The expression that represents the correct translation of the phrase is 8x = x + 2

An equation is an expression that shows the relationship between two or more numbers and variables.

Independent variables represent function inputs that do not depend on other values, while dependent variables represent function outputs that depends on other values.

Let x represent the unknown number, the product of 8 and a number is equal to the number increased by 2, hence:

8 * x = x + 2

8x = x + 2

The expression that represents the correct translation of the phrase is 8x = x + 2

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Answer:

Rational.

Step-by-step explanation:

Many floating point numbers are also rational numbers since they can be expressed as fractions. For example, 1.5 is rational since it can be written as 3/2, 6/4, 9/6 or another fraction or two integers. Pi (π) is irrational since it cannot be written as a fraction.

Answer:

2/25

Step-by-step explanation:^2 = 1/25

Cubic Root 8 = cubic root = 2^3 = 2

(1/25)*(2) = 2/25

You can use either a numerical (integer or floating-point) variable or a Boolean variable to store the value of a logical expression.

Numerical Variable: You can use a numerical variable, such as an integer or floating-point variable, to store the result of a logical expression. In this case, the logical expression would be evaluated and assigned a numerical value, typically 0 or 1, representing false or true, respectively. For example, if you have a logical expression "x > 5", you can assign the result to a numerical variable like "result = (x > 5)", where the value of "result" would be 0 if the expression is false and 1 if it is true.

Boolean Variable: Alternatively, you can use a Boolean variable to directly store the truth value of a logical expression. A Boolean variable can only have two possible values: true or false. In this case, the logical expression would be evaluated and directly assigned to the Boolean variable. For example, if you have a logical expression "x > 5", you can assign the result to a Boolean variable like "isGreaterThanFive = (x > 5)", where "isGreaterThanFive" would be true if the expression is true and false if it is false.

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Answer:

-170 2/3

Step-by-step explanation:

Divide both sides by 3 to get p by itself

p = -512/3

Simplify

- 170 2/3

Answer:

p=−8

Step-by-step explanation:

Let's solve your equation step-by-step.

\( \rightarrow \sf \: p {}^{3} =−512\)

Step 1: Take cube root.

\( \sf p={(−512) }^{ ( \frac{1}{3} )}\)

\( \sf \: p=−8\)

Answer:

m= 1/3

Step-by-step explanation:

Use

y = mx+b to calculate the equation of the line, where m represents the slope and b represents the y-intercept. To calculate the equation of the line, use the

y=mx+b format. The slope equals the change in y over the change in x, or rise over run.

m= ( change in y)

     (change in x)

The change in x

The slope is equal to the difference in x-coordinates (also called run), and the change in y is similar to the difference in y-coordinates (also called rise).  

m = \(\frac{y^2-y^1}{x^2-x^1}\)

Substitute the x and y into the equation to find the slope.

m=\(\frac{5-(4)}{2-(-1)}\)

It is finding the slope m.

m = \(\frac{1}{3}\)

Find the value of b

using the formula for the equation of a line.

b = \(\frac{13}{3}\)

Now that the values of m

(slope) and b (y-intercept) are known, substitute them into y =mx+b

to find the equation of the line. y = \(\frac{1}{3}\)x+\(\frac{13}{3}\) 0r 1/3

Answer:

9 songs will be on the final CD

Step-by-step explanation:

The band writes and records 20% more songs than they expected to put on CD (they expected to put 15 on CD) , hence 3 more songs since 20% of 15 is 3 (= 15 × 0.20). A total of 18 songs is recorded.

During editing, 50% of the songs are removed, that is 9 (= 18 × 0.50).

Therefore, only 9 songs are left on CD (= 18 - 9)

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Required percentage value = a

total value = b

Percentage = a/b x 100

The number of songs in the final CD is 9.

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

The number of total songs.

= 15 + (20% of 15)

= 15 + (1/5 x 15)

= 15 + 3

= 18

Now,

The number of removed songs.

= 50% of 18

= 1/2 x 18

= 9

The number of songs on the final CD.

= 18 - 9

= 9

Thus,

The number of songs in the final CD is 9.

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Answer:

This is a problem of conservation of momentum in two dimensions. According to the law of conservation of momentum, the total momentum of a closed system is constant, regardless of the directions of the objects before and after they collide. Therefore, we can write the following equations for the x and y components of momentum:

m₁v₁ix + m₂v₂ix = m₁v₁fx + m₂v₂fx

m₁v₁iy + m₂v₂iy = m₁v₁fy + m₂v₂fy

where m₁ and m₂ are the masses of the ball and the pin, v₁i and v₂i are their initial velocities, and v₁f and v₂f are their final velocities. We can use the given information to plug in the values and solve for the unknowns. For the x-component, we have:

(6.35 kg)(8.49 m/s) + (1.59 kg)(0 m/s) = (6.35 kg)(v₁fx) + (1.59 kg)(20.1 m/s)(cos(-77°))

Solving for v₁fx, we get:

v₁fx = 6.62 m/s

The x-component of the ball’s final velocity is 6.62 m/s.

Step-by-step explanation:

Explanation:

The mixed number 8 & 4/5 consists of the whole part 8 and the fractional part 4/5.

Divide the whole part 8 into 4 equal pieces

8/4 = 2

This means 2 is part of the final answer.

Also, divide the 4/5 into 4 equal pieces as well. This is the same as multiplying by 1/4

(1/4)*(4/5) = 1/5

Overall, the size of each section is 2 & 1/5 acres

∠mkj angle is an adjacent interior angle to ∠jkm

Adjacent interior angles are two angles that share a common vertex and a common side. In the given angle ∠jkm, the common vertex is at point "k" and the common side is the line segment joining points "j" and "m". Therefore, the adjacent interior angle to ∠jkm is ∠mkj.

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Answer:

Step-by-step explanation:

The easiest way to do this is either to find a pattern or list them. We'll list them first.

3 9 15 21 27 33 39 45 51 57 63 69 75 81 87 93  99

17 but there is a pattern

Starting with 3, add 6 to every number you find in the series. There is a formula that covers this

l = a + (n- 1)*d

a = 3

l = 99

d = 6

99 = 3 + (n - 1)*6             Subtract 3

99 - 3 = (n - 1)*6

96 = (n - 1)*6                  Divide by 6

96/6 = (n -1)*6/6

16 = n - 1                        Add 1 to both sides.

16+1 = n - 1 + 1               Combine

17 = n

Answer:

Problem is explained in images

Answer:

77 text messages

Step-by-step explanation:

she has 103 text messages and deleted 20 text messages. it will remain 77 text messages and the next 7 days was 15 text messages, so we will add 77 and 15 which is 92 text messages saved on her phone

Answer:

Concept: Mathematical Representation

Answer:

75%

Step-by-step explanation:

Percentage of planets having moons = 6 /8 *100 = 75%

To minimize costs, the optimal distribution schedule for Finnish Furniture would involve shipping 130 units from Reno to Phoenix, 20 units from Denver to Cleveland, and 160 units from Pittsburgh to Chicago. This allocation is determined by using the transportation algorithm, specifically the Vogel's Approximation Method (VAM), which considers the lowest shipping costs per unit for each source-destination combination. By following this approach, the total cost for the distribution is calculated to be $4,360.

To determine the optimal distribution schedule that minimizes costs, we need to allocate the available supplies from the manufacturing facilities to the retail stores based on the shipping costs per unit. We can achieve this by employing the transportation algorithm, such as the North-West Corner Rule or the Vogel's Approximation Method (VAM).

Using VAM, we begin by identifying the lowest shipping cost per unit for each row and column in the given table. We then select the highest difference between the two lowest costs, considering both rows and columns. This difference indicates the most cost-effective allocation.

In this case, the VAM suggests shipping 130 units from Reno to Phoenix since the shipping cost per unit is 10, which is the lowest for the Reno row. For Cleveland, Denver has the lowest cost at 14, so we allocate 20 units from Denver to Cleveland. Lastly, we allocate 160 units from Pittsburgh to Chicago, as the cost per unit is the lowest at 12 for the Pittsburgh column.

Now, let's calculate the total cost. The cost of shipping 130 units from Reno to Phoenix is 130 x 10 = $1,300. Shipping 20 units from Denver to Cleveland costs 20 x 14 = $280. Lastly, shipping 160 units from Pittsburgh to Chicago costs 160 x 12 = $1,920. Adding these costs together gives us a total cost of $1,300 + $280 + $1,920 = $4,360.

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Answer:

x=-6

y=1

Step-by-step explanation:

do you need the rest of the page done as well?

x=-6

y=1

Answer:

Step-by-step explanation:

Answer:

Tax amount = $36.25

Step-by-step explanation:

The tax rate is 7.25%.

We need to find the tax be on a $500 TV.

It can be calculated as follows :

\(C=500\times 7.25\%\\\\=500\times \dfrac{7.25}{100}\\\\=\$36.25\)

So, the required tax on $500 TV is $36.25.