There are 10 brown, 10 black, 10 green, and 10 gold marbles in bag. A student pulled a marble, recorded the color, and placed the marble back in the bag. The table below lists the frequency of each color pulled during the experiment after 40 trials..


Outcome Frequency
Brown 13
Black 9
Green 7
Gold 11


Compare the theoretical probability and experimental probability of pulling a brown marble from the bag.
The theoretical probability, P(brown), is 50%, and the experimental probability is 25%.
The theoretical probability, P(brown), is 50%, and the experimental probability is 22.5%.
The theoretical probability, P(brown), is 25%, and the experimental probability is 13.0%.
The theoretical probability, P(brown), is 25%, and the experimental probability is 32.5%.

Answer:

Circles are round shapes that doesn't have points or perhaps angles it shape is considered no a point shape thanks to it having no points ofc or can be used in measurements,yards,etc

Answer:4x - 2 = 12

Step-by-step explanation:

From the graph, she walked at a rate of [tex]\frac{25-10}{5-2}=5 \text{ ft/s}[/tex].

Therefore, she walked faster on her next three walks compared to her first two walks.

The value of x is 13 and the angles in the triangle are 38,69 and 73 respectively.

What is triangle ?

Triangle can be defined in which it consists of three sides, three angles and sum of three angles is always 180 degrees.

From the given figure,

In the given triangle ,

The triangles are 3x - 1 , 8x - 35  and 6x - 5

The sum of all angles is always is 180 degrees.

so,

we get,

3x - 1 + 8x - 35 + 6x - 5 = 180

17x - 41 = 180

17x = 180 + 41

17x = 221

x = 221 / 17

x = 13

so,

3x - 1  = 3*13 - 1 = 38

8x - 35  = 8* 13 - 35 = 104 - 35 = 69

6x - 5 = 6*13 - 5 = 78 - 5 = 73

Therefore, The value of x is 13 and the angles in the triangle are 38,69 and 73 respectively.

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The distance between where Jenna stopped and the park is 1 1/10 miles

A word problem is a math problem written out as a short story or scenario. Basically, it describes a realistic problem and asks you to imagine how you would solve it using math.

The word problems are interpreted into mathematics equation.

The distance between Jena's school and the park is 1⅘ miles = 9/5 miles

He stopped after walking for 7/10 miles .

The distance left to the park from where he stopped = 9/5 - 7/10

= (18-7)/10

= 11/10 miles

= 1 1/10 miles

Therefore Jena is 1 1/10 miles away from the park when she stopped.

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Note that where Will C. Lowe wishes to purchase an ordinary whole life insurance policy with a face value Of $50,000, his annual premium, if his age for insurance purposes is thirty-one is: $7,665.

The insured pays a premium to the insurer on a regular basis to cover his risk. The risk is transferred from the insured to the insurer under an insurance arrangement. The premium is the amount charged by the insurer for accepting this risk.

To compute the Premium Payable, you must apply the stipulated rate against the sum insured.

Since the Sum assured is $50,000; and

The applicable rate for a 31-year-old is 15.33%

Thus the Insurance Premium for an Ordinary Whole Life Insurance Policy is:

(50,000 * 15.33)/100

= 766500/100

=  $7,665.

Thus Lowe to be entitled to an annual Life Insurance cover of $50,000 must pay $ $7,665 every year.

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Slope intercept form of equation is y = -3x + 5.

The graph of the linear equation y = mx + c is a line with m as slope and c as the y-intercept. This form of the linear equation is called the slope-intercept form, and the values of m and c are real numbers.

Given equation,

-5 = -y - 3x

Standard Slope intercept form of equation y = mx + c

Given equation can be written as

y = -3x + 5

Hence, y = -3x + 5 is the slope intercept form of given equation

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The required equation in the slope-intercept form is given as y = -3x + 5.

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

Here,
The equation of line passes through points (x, y) and has a slope and intercept of m and c respectively is given as,
y = mx + c

The above expression is the standard slope intercept form of a line.

Trasform the given equation,

-5 = -y - 3x
y - 5 = -3x

y = -3x + 5

Thus, the required equation in the slope-intercept form is given as y = -3x + 5.

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Answer:

a) GH¢15x

b) GH¢15

Step-by-step explanation:

a) To find the cost function, C(x), given that it is linear, we need to find the slope and y-intercept of the line that represents the cost to produce x units of the product. We can use the point-slope form of a line to find the cost function: C(x) = mx + b, where m is the slope and b is the y-intercept.

We have two points: (100, GH¢1,500) and (0, GH¢0), which represents the cost to produce 100 units and 0 units, respectively. The slope can be found by dividing the change in y by the change in x:

m = (GH¢1,500 - GH¢0) / (100 - 0) = GH¢15

The y-intercept can be found by plugging in one of the points and solving for b:

GH¢1,500 = (GH¢15)(100) + b

GH¢1,500 = GH¢1,500 + b

b = GH¢0

So the cost function is C(x) = GH¢15x + GH¢0.

b) To find the average cost per item to produce 50 units and 300 units, we need to divide the total cost by the number of units produced.

For 50 units:

C(50) = GH¢15 * 50 + GH¢0 = GH¢750

Average cost = C(50) / 50 = GH¢15

For 300 units:

C(300) = GH¢15 * 300 + GH¢0 = GH¢4,500

Average cost = C(300) / 300 = GH¢15

The solutions of the equation are x < 18 and x < - 30.  

Solutions of equations are the numerical values of the variables that will satisfy the condition in the given equation. Similarly, the solutions of inequalities are the values of variables that can satisfy the given inequality.

We can solve an inequality by adding or subtracting the same integer on both sides, or we can multiply or divide by the same number on both sides until we get the value of 'x'.

Here we have

3/4 |1/3x + 2| < 6  

We can solve the above equation as follows

3/4 |1/3x + 2| < 6    

Multiply by 4 on both sides

=> 4 [ 3/4 |1/3x + 2| ] < 4 × 6    

=>  3 |1/3x + 2| < 24  

=> | x + 6| < 24      

=> x + 6 < ± 24      

=> x + 6 < 24      and     x + 6 < - 24

Subtract - 6 on both sides

=> x + 6 - 6 < 24 - 6      and     x + 6 - 6 < - 24 - 6

=> x < 18       and       x < - 30

Therefore,

The solutions of the equation are x < 18 and x < - 30.  

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Answer:

Quadrant IV

In quadrant 4, the x-coordinate is positive, while the y-coordinate is negative.

If P is the circumcenter of ABC, the DP is 13.27 units.

The value of DP is calculated by applying the following method as shown below.

Based on the given figure, D is the midpoint of AB

Line AD = BD, so line DP is perpendicular to line AB and the following equation can be formed to determine value of x.

7x - 6 = 5x + 8

2x = 14

x = 14/2

x = 7

DB = 7x - 6

DB = (7 x 7 ) - 6 = 43

Let PC = 45

PC = PB = 45

Apply Pythagoras theorem to determine DP;

DP² = PB² - DB²

DP² = 45² - 43²

DP² = 176

DP =  √176

DP = 13.27 units

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The distance of AB is 117.992 meters.

Law of sines is a law in trigonometry which states that the ratios of the angle to the opposite side of a triangle are equal.

For triangle ABC,

sin A / a = sin B / b = sin C / c

where a, b and c are the sides opposite to the angles A, B and C respectively.

Here,

∠B = 112° 10' = 112° + 0.167° = 112.167°

∠C = 15° 20' = 15° + 0.333° = 15.333°

By the angle sum property of triangle,

∠A = 180° - (∠B + ∠C)

∠A = 180° - (112.167° + 15.333°)

     = 52.5°

Using law of sines,

sin A / BC = sin C / AB

sin (52.5°) / 354 = sin (15.333°) / AB

AB = [354 × sin (15.333°)] / [sin (52.5°)]

AB =  [354 × 0.264] / [0.793]

AB = 117.992 meters

Hence the distance across the river is 117.992 meters.

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Variables expression is done as given below.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Variables are the values for a specific item.

Example:

Apple cost = $4 per kg

Banana cost = $6 per kg

Total cost = $60

To find the number of kg for each item we have to consider x as the number of kg of apple and y as the number of kg of banana.

Here,

x and y are the variables.

Now,

The expression with the variables x and y.

4x + 6y = 60

Thus,

The expression with variables is given above.

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The solution to the linear equations are;

20. x = 3. 200

21. x = 4. 333

22. x = 11. 438

23. x = 1.417

24. y = 0. 223

25. 45%

From the information given, we have to solve the linear equations, we have;

20. -15x + 73 = 26

collect like terms

-15x = 26 - 74

-15x = -48

Make 'x' the subject

x = 3. 200

21. 1.5x + 7.4 = -1.8x - 6.9

collect the like terms

3.3x = 14.3

Make 'x' the subject

x = 4. 333

22. 14.1 - 0.3x = 1.3x - 4.2

collect like terms

1.6x = 18.3

Make 'x' the subject

x = 11. 438

23. 6.2x + 4.5 = 3.8x + 7.9

collect like terms

2.4x = 3.4

Make 'x' the subject

x = 1.417

24. 4.603y - 1.842 = -3.651y

collect like terms

8.254y = 1.842

Make 'y' the subject

y = 0. 223

25. The percentage is given as;

159/350 × 100/1

45%

Hence, the values are x = 3. 200, x = 11. 438, x = 1.417, y = 0. 223 and 45%

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, The fraction equivalent to 3/9 with denominator 3 is the proper fraction p=1/3

A fraction is a part of a whole. In arithmetic, the number is expressed as a quotient, in which the numerator is divided by the denominator. In a simple fraction, both are integers. A complex fraction has a fraction in the numerator or denominator. In a proper fraction, the numerator is less than the denominator.

Given here: The fraction 3/9

Now we can simplify the fraction further by dividing both the numerator and denominator by 3

let p=3/9

then p=3/3 / 9/3

       p= 1/3

Hence, The fraction equivalent to 3/9 with denominator 3 is the proper fraction p=1/3

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The worker B has a higher variance of σ² = 9 and standard deviation of 3

The standard deviation refers to a measurement of the data dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.

Standard Deviation is calculated by

Each number's deviation from the mean must be determined, and then squared.

Next, add up all of these values.

Divide the result by the quantity of numbers.

Then calculate its square root.

Given data ,

Let the data of worker A = { 5, 4, 4, 6, 7, 5, 6, 3 }

Let the data of worker B = { 4, 8, 1, 9, 2, 9, 4, 3 }

Now , the mean of worker A = 5

The mean of worker B = 5

So , the standard deviation of worker A is calculated as

The sum of the difference of the data from mean is

SD = √ ( 5 - 5 )² + ( 5 - 4 )² + ( 5 - 4 )² + ( 5 - 6 )² + ( 5 - 7 )² + ( 5 - 5 )² + ( 5 - 6)² + ( 5 - 3 )² / 8

On simplifying the equation , we get

SD = √ ( 12/8 )

SD = √1.5

Standard deviation σ = 1.2247449

And , the variance of worker A is σ² = 1.5

Now ,

The standard deviation of worker B is calculated as

The sum of the difference of the data from mean is

SD = √ ( 5 - 4 )² + ( 5 - 8 )² + ( 5 - 1 )² + ( 5 - 9 )² + ( 5 - 2 )² + ( 5 - 9 )² + ( 5 - 4)² + ( 5 - 3 )² / 8

On simplifying the equation , we get

SD = √ ( 72/8 )

SD = √9

Standard deviation σ = 3

And , the variance of worker A is σ² = 9

Hence , the worker B has higher standard deviation

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The numbers that are exactly divisible by 7  are;

a) 525

b) 798

d) 3696

To solve this, what we will do is to quote the divisibility rule for 7 here which is that;

For a 3 digit number abc to be divisible by 7 then it means that ab - 2c must be divisible by 7. Thus;

A) 525;

52 - 2(5)

= 52 - 10

= 42

42 is divisible by 7 and as such 525 is divisible by 7

B) 798;

79 - 2(8)

= 63

63 is divisible by 7 and as such 79 is divisible by 7

C) 836;

83 - 2(6)

= 83 - 12

= 71

71 is not divisible by 7 and as such 836 is not divisible by 7

D) 3696;

369 - 2(6)

= 357

35 - 2(7)

= 21

21 is divisible by 7 and as such 3696 is divisible by 7

E) 5706;

570 - 2(6)

= 558

55 - 2(8)

= 39

It's not divisible by 7 and so  5706 is not divisible by 7

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Answer:Can somebody also help me with this. i'm confused please hurry!

Step-by-step explanation:

The inverse function of f(x) = (x^2+1)^2 step by step is given below.

The inverse of f(x) is √(√x - 1).

A function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

f(x) = (x² + 1)²

The steps for finding the inverse of a function.

Step 1:

Keep y = f(x)

y = (x² + 1)²

Step 2:

Interchange x and y.

x = (y² + 1)²

Step 3:

Solve for y.

x = (y² + 1)²

Square root on both sides.

√x = y² + 1

(√x - 1) = y²

Square root on both sides.

y = √(√x - 1)

Thus,

The inverse of f(x) is √(√x - 1).

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The required description of the given piecewise function is graphed below.

f(x) = 3 if [-5, -2]; f(x) = -3 if (-2, 3]; and f(x) = 3 if (3, 4]

A piecewise-defined function (also known as a piecewise function or a hybrid function) is a function defined by multiple sub-functions, each of which applies to a different interval of the main function's domain (a sub-domain).

The graph is given in the question, as shown

f(x) = 3 if [-5, -2]

This the sub-function define between the interval [-5, -2].

f(x) = -3 if (-2, 3]

This the sub-function define between the interval (-2, 3].

f(x) = 3 if (3, 4]

This the sub-function define between the interval (3, 4].

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Answer:24 sq. units

Step-by-step explanation:

The length of the base is (7-1)= 6 units. The height is 8 units.

Area =1/2*l*b=24

The expression from the statement is 2x - 1 = 14

From the question, we have the following parameters that can be used in our computation:

The product of 2 and the difference between 1 is 14

Represent the variable with x

So, we have

2x and the difference between 1 is 14

When the difference is expressed as an expression, we have

2x - 1 is 14

So, we have

2x - 1 = 14

Hence, the expression is 2x - 1 = 14

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a) The continuous growth rate can be calculated using the formula:

r = (ln(B) - ln(A)) / t

where r is the continuous growth rate, A is the initial count (330), B is the count after 6 hours (1340), and t is the time elapsed (6 hours).

Substituting the values:

r = (ln(1340) - ln(330)) / 6

r = 0.3907

b) The model for the bacteria colony can be written as:

B = A * e^(rt)

where B is the number of bacteria after time t, A is the initial count (330), and e is the base of the natural logarithm.

c) To find the number of bacteria after 16 hours, substitute t = 16 and the values of A and r from above:

B = 330 * e^(0.3907 * 16)

B = 9581.57

The number of bacteria after 16 hours is approximately 9582.

The coordinate points on the graph line of the function given represent the ordered pair that satisfy the equation.

An function in mathematics defines a relationship between one variable (the independent variable, x)  and another variable (the dependent variable, y). Example -

y = f{x} = ax + b

Given is a function as -

2x - 4y = 14

The given equation is -

2x - 4y = 14

Rewriting the function, we get -

4y = 2x - 14

y = (1/2)x - (7/2)

Plot the graph of the above function. All the coordinate points on the line represent the ordered pair that satisfy the equation.

Therefore, the coordinate points on the graph line of the function given represent the ordered pair that satisfy the equation.

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Answer:

  -1

Step-by-step explanation:

You want the slope of the line through the points (-3, 4) and (2, -1).

The slope is given by the formula ...

   m = (y2 -y1)/(x2 -x1)

Using the given points, we find the slope to be ...

  m = (-1 -4)/(2 -(-3)) = -5/5 = -1

The slope of the line through the given points is -1.

Answer:

The original price of the item was $9.99 and it was discounted by 70%, which means the new price is $2.99.

Step-by-step explanation:

A) An equation to represents your plan to afford the iguana is,

⇒ y = $12 + $9w

Where, y is total money after w weeks.

B) The amount of money you should save each week to buy the iguana in 6 weeks is, $66.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

You want to buy a pet iguana. You already have $12 and plan to save $9 per week.

Let w represents the number of weeks until you enough Money to buy the iguana.

Hence, An equation to represents your plan to afford the iguana is,

⇒ y = $12 + $9w

Where, y is total money after w weeks.

And, The amount of money you should save each week to buy the iguana in 6 weeks is,

⇒ y = $12 + $9w

⇒ y = $12 + $9 × 6

⇒ y = $12 + $54

⇒ y = $66

Thus, A) An equation to represents your plan to afford the iguana is,

⇒ y = $12 + $9w

Where, y is total money after w weeks.

B) The amount of money you should save each week to buy the iguana in 6 weeks is, $66.

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Answer:

the correct answer to this equation would be: >