ALGEBRA please put a very small explanation to the awnser

The property illustrated in equation 4(-8+5) = -32 + 20 is the Distributive Property.

The Distributive Property states that when a number is multiplied by a sum or difference in parentheses, it can be distributed or multiplied by each term inside the parentheses separately, and then the results can be added or subtracted.

In this case, the number 4 is multiplied by the sum (-8 + 5). By applying the Distributive Property, we distribute the 4 to each term inside the parentheses:

4(-8 + 5) = (4 * -8) + (4 * 5)

This simplifies to:

4(-8 + 5) = -32 + 20

Finally, we can perform the addition:

-32 + 20 = -12

Therefore, the equation demonstrates the application of the Distributive Property.

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Answer:

7y+31.5

Step-by-step explanation:

your distributing the 7 to the y and the 4.5

Answer:

7y + 31.5

Step-by-step explanation:

7(y+4.5)

7y + 31.5

So, the answer is 7y + 31.5

The y-intercept can be calculated using the formula: b = (Σy - m(Σx))/n.

Based on the given data points, we can create a scatterplot and draw a line of best fit to analyze the relationship between the input and output variables.

To create the scatterplot, we plot the input values (2, 3, 4, 5, 7, 9) on the x-axis and the corresponding output values (3, 3, 5, 4, 7, 9) on the y-axis. Each point represents a data pair.

Next, we draw a line of best fit that represents the general trend of the data. The line should pass through the middle of the data points, minimizing the distance between the line and the points. We can determine the equation of the line using linear regression.

After drawing the line of best fit, we can determine the equation by finding the slope and y-intercept. The equation of a line is typically represented as y = mx + b, where m is the slope and b is the y-intercept.

To calculate the slope, we can use the formula: m = (Σ(xy) - (Σx)(Σy)/n) / (Σ(x^2) - (Σx)^2/n), where Σ denotes summation and n is the number of data points.

The y-intercept can be calculated using the formula: b = (Σy - m(Σx))/n.

Substituting the values from the given data into the formulas, we can determine the equation of the line of best fit.

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Answer: = 8x - 5

Step-by-step explanation:

f(x) = 4x² - 5x

Find:

lim as Δx⇒0  [f(x + Δx) - f(x)] /Δx        

This is the same as finding the derivative.   For f(x + Δx) means substitute x + Δx  into the function everytime you see an x.

Solution:

lim as Δx⇒0  [f(x + Δx) - f(x)] /Δx

lim as Δx⇒0  [4(x + Δx)² - 5(x + Δx) - (4x² - 5x)] /Δx             >Simplify

lim as Δx⇒0  [4(x²+2x(Δx) +(Δx)²) - 5x- 5Δx - 4x²+ 5x] /Δx

lim as Δx⇒0  [4x²+8x(Δx) +4(Δx)² - 5x- 5Δx - 4x²+ 5x] /Δx

lim as Δx⇒0  [8x(Δx) +4(Δx)²- 5Δx] /Δx            >Divide by Δx

lim as Δx⇒0  8x +4(Δx)- 5                >set Δx to 0 because it is approaches

= 8x - 5

You can check this using the power rule and take derivative of f(x) and it checks out.

There are 200 consumers who do not buy any brand of tea and there are 400 consumers who like only one brand of tea.

To find the number of consumers who do not buy any brand of tea, we need to subtract the number of consumers who buy either the own nation's tea or the international tea or both from the total number of consumers.

a) Number of consumers who do not buy any brand of tea = Total number of consumers - (Number of consumers buying own nation's tea + Number of consumers buying international tea - Number of consumers buying both brands)

= 600 - (300 + 250 - 150)

= 600 - 400

= 200

Therefore, there are 200 consumers who do not buy any brand of tea.

b) To find the number of consumers who like only one brand of tea, we need to subtract the number of consumers buying both brands of tea from the sum of the number of consumers buying each brand individually.

Number of consumers who like only one brand of tea = Number of consumers buying own nation's tea + Number of consumers buying international tea - Number of consumers buying both brands

= 300 + 250 - 150

= 400

Therefore, there are 400 consumers who like only one brand of tea.

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Speed and distance are not independent variables.3. Height and weight: Height and weight are interrelated variables, with taller people tending to weigh more than shorter individuals.

Independence is a basic statistical concept that refers to the absence of a relationship between two variables. Two variables can be considered independent of each other if the occurrence of one does not affect the probability of the other occurring.

In contrast, dependent variables are those that have a cause-and-effect relationship. Changes in the independent variable cause changes in the dependent variable.

The following are some examples of situations with independent and not independent variables:

Independent variables1. Tossing a coin: The probability of obtaining a head or tail is 50% and is not affected by previous flips or any other factor. Therefore, this is an example of an independent event.2.

Rolling a dice: When rolling a dice, the chances of rolling any particular number are all equal, and the outcome of each roll is not influenced by the previous roll.

As a result, rolling a dice is an example of an independent event.3. Selecting a card from a deck: When selecting a card from a deck, the odds of picking a particular card are equal.

After selecting the card, it is not replaced in the deck, so the probability of selecting another card changes.Non-Independent variables1.

Studying for a test: The amount of time spent studying for a test is a dependent variable, as the more time spent studying, the higher the chances of obtaining a better grade on the test.2. Speed and distance: In general, the faster one drives, the farther one travels.

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The answer is:

In point slope:

[tex]\rm{y-5=-3(x+1)}[/tex]

In slope intercept:

[tex]\rm{y=-3x+2}[/tex]

Work/explanation:

Given:

To find the equation of the line, I'm going to use point slope:

[tex]\sf{y-y_1=m(x-x_1)}[/tex]

Where the slope is m and the point is (x₁, y₁).

So our point-slope is:

[tex]\rm{y-5=-3(x-(-1)}[/tex]

Let's simplify.

[tex]\rm{y-5=-3(x+1)}[/tex]

That's our equation in point slope.

__________________________

We might want to write the equation in slope intercept (y = mx + b).

We can do that, too, but let's simplify first.

We take our point slope equation.

We simplify the right side.

[tex]\rm{y-5=-3x-3}[/tex]

Add 5 on both sides

[tex]\rm{y=-3x+2}[/tex]

a. The premium for this coverage will depend on the  individual's age, location, driving record, and the insurance company's rates.

b.   It will cost higher because the insurance company provides more coverage in the event of an accident.

c.  The difference in cost between the two coverage amounts depends on factors such as the insurance provider's rates and the person's specific circumstances.

a. Insurance coverage of 50/100/10:

The coverage limits 50/100/10 is a representation of  the minimum liability coverage required by state laws.

$50,000 = coverage for bodily injury liability per person.

$100,000  = coverage for bodily injury liability per accident.

$10,000 = coverage for property damage liability per accident.

b. Insurance coverage of 100/300/25:

The coverage limits 100/300/25 represent higher liability coverage limits:

$100,000  = coverage for bodily injury liability per person.

$300,000  = coverage for bodily injury liability per accident.

$25,000  = coverage for property damage liability per accident.

c. Difference in cost:

The difference in cost between the two coverage levels is influenced by a number of variables, including the insurance company's rates and the individual's unique situation.

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The product of 7/8 and 2/7, reduced to the Lowest terms, is 1/4.

To find the product of the fractions 7/8 and 2/7, we multiply the numerators together and the denominators together:

(7/8) * (2/7) = (7 * 2) / (8 * 7) = 14/56

To reduce this fraction to its lowest terms, we need to find the greatest common divisor (GCD) of the numerator and denominator. In this case, the GCD of 14 and 56 is 14. We can divide both the numerator and denominator by 14:

14/56 = (14/14) / (56/14) = 1/4

Therefore, the product of 7/8 and 2/7, reduced to the lowest terms, is 1/4.

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The side b is approximately 80.02 feet in length. In a right triangle ABC with angle C equal to 90°, if angle B is 37.56° and side a is 49.94 feet, we can solve for side b using the trigonometric function sine.

First, we can label the triangle as follows:

Side a is opposite angle A,

Side b is opposite angle B,

Side c is the hypotenuse.

Let's label the triangle with the given and asked for information. Angle C is the right angle, angle B is 37.56°, side a is 49.94 feet, and side b is the side we are trying to find.

Using the sine function, we have:

sin(B) = opposite/hypotenuse

sin(37.56°) = a/b

Now we can substitute the known values:

sin(37.56°) = 49.94/b

To solve for b, we rearrange the equation:

b = 49.94 / sin(37.56°)

Using a calculator, we find:

b ≈ 80.02 feet.

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Among the given word problems, the one that exemplifies a linear function is: Kate rented a bicycle for $30 plus $1.50 per hour. Statement 1

In this scenario, the cost of renting the bicycle has a fixed component of $30 and an additional cost of $1.50 per hour. The cost is directly proportional to the number of hours the bicycle is rented.

As the number of hours increases, the cost increases linearly by $1.50 per hour. This relationship can be represented by a linear equation of the form y = mx + b, where y is the cost, x is the number of hours, m is the rate of increase ($1.50 per hour), and b is the fixed cost ($30). The equation for this situation would be y = 1.50x + 30, where x ≥ 0.

On the other hand, the other two word problems do not represent linear functions:

Pinocchio's nose grows about 20% of its size each time he lies. His nose was 2 inches long at the beginning.

This situation represents exponential growth since the nose grows by a fixed percentage (20%) of its current size, not by a fixed amount. The growth is not linear but rather compounding, where each increase is a factor of the previous size.

The mean distance of the Earth from the sun is 93 million miles. The distance varies by 1.6 million miles.

The variation in distance does not follow a linear pattern but rather represents a range or interval. The change in distance is not proportional to any other variable; it is simply a measure of the variation or spread in the data.

Statement 1 is correct.

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Irene has 49 Books, and Alejandro has 24 books.

Let's assume that Irene has x books, and Alejandro has y books. According to the given information, we can form the following equations:

1. Irene has twice as many books as Alejandro plus 1:

  x = 2y + 1

2. The total number of books between Irene and Alejandro is 73:

  x + y = 73

We can now solve this system of equations to find the values of x and y.

Substituting the value of x from equation (1) into equation (2), we have:

(2y + 1) + y = 73

3y + 1 = 73

3y = 72

y = 24

Now, we can substitute the value of y into equation (1) to find x:

x = 2(24) + 1

x = 49

Therefore, Irene has 49 books, and Alejandro has 24 books.

To verify our solution, we can check if the sum of their books equals 73:

49 + 24 = 7

So, our solution is correct.

In conclusion, Irene has 49 books, and Alejandro has 24 books.

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Answer:

1000 tiles

Step-by-step explanation:

Determine total floor space
800 x 10 = 8000 squared cm total floor space.
Divide floor space by size of tile
8000 / 8 = 1000 tiles now required to cover the floor.

The probability that the three randomly selected students will have blood types A, B and AB is given as follows:

0.00164 = 0.164%.

The parameters that are needed to calculate a probability are listed as follows:

Then the probability is calculated as the division of the number of desired outcomes by the number of total outcomes.

Hence the probability for this problem is calculated as follows:

41/100 x 1/10 x 1/25 = 0.00164 = 0.164%.

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Yes, a polygon can have a central angle of 25 degrees.

A central angle is an angle formed by two radii (or line segments) extending from the center of a polygon to two consecutive vertices. The sum of the central angles in any polygon is always equal to 360 degrees.

Therefore, if we have a regular polygon with n sides, each central angle would measure 360 degrees divided by n. For example, a regular hexagon (a polygon with 6 sides) would have central angles of 360 degrees divided by 6, which is 60 degrees.

However, in the case of an irregular polygon, the central angles can have different measures. As long as the sum of all the central angles equals 360 degrees, it is possible for one or more central angles to measure 25 degrees.

Answer:

Step-by-step explanation:

Among the given word problems, the one that exemplifies a linear function is:

Kate rented a bicycle for $30 plus $1.50 per hour.

A linear function is a mathematical function that represents a straight line. It has a constant rate of change and can be represented by the equation y = mx + b, where m is the slope and b is the y-intercept.

Among the given word problems, the one that exemplifies a linear function is:

Kate rented a bicycle for $30 plus $1.50 per hour.

In this scenario, the cost of renting the bicycle is determined by a fixed fee of $30 plus an additional charge of $1.50 per hour. The relationship between the total cost and the number of hours can be represented by a linear equation, where the cost increases at a constant rate of $1.50 per hour.

The other two word problems do not represent linear functions. Pinocchio's nose growing by 20% each time he lies involves exponential growth, and the mean distance of the earth from the sun varying by 1.6 million miles represents a variable relationship, not a linear one.

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Answer: -2

Step-by-step explanation:

The slope of the line perpendicular to another slope is the opposite sign and flipped(reciprocal)

The slope of the line = 1/2

So the perpendicular slope = -2

Answer:

(a) 468 + 59 = 527

Step-by-step explanation:

Attached is the work for solving the addition problem using the compensation method.

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Khoi invested $220 in the account that earns 5% interest and $380 in the account that earns 10% interest.

Khoi has a total of $600 invested in two accounts. The accounts earn 5% and 10% simple interest. The interest due to Khoi after one year is $49.Let x be the amount of money invested in the account that earns 5% interest and y be the amount of money invested in the account that earns 10% interest.

As per the problem statement, the sum of the two investments equals $600.

Therefore,x + y = 600orx = 600 - y

Also, the interest earned on the first account is given by,0.05xAnd, the interest earned on the second account is given by,0.10yThe total interest earned is $49.

Thus, we can write,0.05x + 0.10y = 49

Substituting the value of x from the first equation, we get,

0.05(600 - y) + 0.10y = 49

Simplifying this equation, we get,30 - 0.05y + 0.10y = 49Or,0.05y = 19

Therefore,y = 380

Plugging this value of y back into the first equation, we get,x + 380 = 600orx = 220.

Therefore, Khoi invested $220 in the account that earns 5% interest and $380 in the account that earns 10% interest.

Hence, the solution is as follows:Khoi invested $220 in the account that earns 5% interest and $380 in the account that earns 10% interest.

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The measure of the length of segment AB in the triangle is 20 units.

The figure in the image is of two similar triangles:

From the image,

For the smaller triangle:

Leg 1 AP = 12

Leg 2 AQ = 8

For the larger triangle:

Leg 1 AC = 12 + 18 = 30

Leg 2 AB = 8 + QB

First, we determine length QB, we take the ratio of the sides of the two triangle since they similar:

Hence:

Leg 1 AP : Leg 2 AQ = Leg 1 AC : Leg 2 AB

12 : 8 = 30 : ( 8 + QB )

12/8 = 30/( 8 + QB )

Solve for QB:

12( 8 + QB ) = 8 × 30

96 + 12QB = 240

12QB = 240 - 96

12QB = 144

QB = 144/12

QB = 12

Now,

Leg 2 AB = 8 + QB

Plug in QB = 12:

Leg 2 AB = 8 + 12

Leg 2 AB = 20

Therefore, AB measure 20 units.

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The function f(x) = 9/(4-x^2) does not have any removable or non-removable discontinuities. It is continuous for all real values of x except where x^2 = 4, which leads to undefined values of the function.

To determine the x-values at which the function f(x) = 9/(4-x^2) is not continuous, we need to look for any potential removable and non-removable discontinuities.

First, let's consider removable discontinuities. These occur when there are holes in the graph that can be filled in by redefining the function at that point. In this case, we need to check if there are any values of x for which the denominator (4-x^2) becomes zero.

For the function f(x) = 9/(4-x^2), the denominator becomes zero when x^2 = 4. Solving this equation, we find two potential values for x: x = 2 and x = -2.

To check if these values are removable discontinuities, we need to examine the behavior of the function near these points. However, it seems that there is a mistake in your initial statement. There are no removable discontinuities for the given function f(x) = 9/(4-x^2).

Moving on to non-removable discontinuities, these occur when the function has vertical asymptotes or jump discontinuities that cannot be filled in. In this case, we need to check if there are any values of x that make the denominator zero and cannot be canceled out.

Again, for the function f(x) = 9/(4-x^2), the denominator becomes zero when x^2 = 4. Solving this equation, we find the same two potential values for x: x = 2 and x = -2.

However, upon further inspection, we can see that these values are not non-removable discontinuities either. Plugging them back into the function, we have:

f(2) = 9/(4-2^2) = 9/0,

f(-2) = 9/(4-(-2)^2) = 9/0.

Both f(2) and f(-2) are undefined since division by zero is not allowed. Therefore, x = 2 and x = -2 are not non-removable discontinuities either.

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a. Converse: If the interior angles of a shape do not sum to 180°, then the shape is not a triangle. The converse is true. If the interior angles do not add up to 180°, it implies that the shape is not a triangle.

b. Converse: If alternate interior angles of two lines are equal, then the lines are parallel. The converse is true. If alternate interior angles are equal, it implies that the lines are parallel.

c. Converse: If I have a Rhombus, then I also have a Square. The converse is not true. A rhombus is a parallelogram with equal side lengths, but it does not necessarily have right angles like a square.

d. Converse: If I have a shape with four right angles, then I have a rectangle. The converse is not true. A shape with four right angles could be a square, but it could also be a parallelogram or a rhombus.

Answer:

a. Converse: If the interior angles of a shape sum to 180°, then the shape is a triangle.

This is not always true.

b. Converse: If alternate interior angles are equal, then the two lines are parallel.

This is true. This is because alternate interior angles are congruent when two lines are parallel.

c. Converse: If I have a Rhombus, then I also have a Square.

This is not always true.

d. Converse: If I have a shape with four right angles, then I have a rectangle.

This is true. This is because a rectangle is a shape with four right angles.

Answer:

angle ced is a right ange

so the m angels debate =135 m angle aeb =35

so the answer is 135+35 =170

180 is a all side sim

=180-170=10 answer

Answer:

∠CED is a right angle.

∠CEA is a right angle.

m∠CEB = m∠BEA

m∠DEB = 135°

a. To find the possible coordinates of point A, we know that the x-coordinate of point A is 5 and the distance between point A and point B is 15 units. Since the x-coordinate of point B is -4, we can calculate the difference between the x-coordinates of point A and point B:

x-coordinate of point A - x-coordinate of point B = 5 - (-4) = 9

So, the possible x-coordinate of point A is 9.

Now, we can use the distance formula to find the possible y-coordinate of point A. The distance between point A (5, y) and point B (-4, -2) is given as 15 units:

√[(x2 - x1)^2 + (y2 - y1)^2] = 15

Plugging in the coordinates of the points:

√[(5 - (-4))^2 + (y - (-2))^2] = 15

Simplifying:

√[9^2 + (y + 2)^2] = 15

Squaring both sides:

81 + (y + 2)^2 = 225

Solving for (y + 2)^2:

(y + 2)^2 = 225 - 81

(y + 2)^2 = 144

Taking the square root:

y + 2 = ±12

Solving for y:

y = -2 ± 12

This gives us two possible y-coordinates:

y = -2 + 12 = 10

y = -2 - 12 = -14

Therefore, the possible coordinates of point A are (9, 10) and (9, -14).

b. If point B were moved to (-7, -2), we follow the same process as above.

The x-coordinate of point A is 5, and the x-coordinate of point B is -7. The difference in x-coordinates is:

x-coordinate of point A - x-coordinate of point B = 5 - (-7) = 12

So, the possible x-coordinate of point A is 12.

Using the distance formula, we have:

√[(12 - (-7))^2 + (y - (-2))^2] = 15

Simplifying:

√[19^2 + (y + 2)^2] = 15

Squaring both sides:

361 + (y + 2)^2 = 225

Solving for (y + 2)^2:

(y + 2)^2 = 225 - 361

(y + 2)^2 = -136

Since the square of a real number cannot be negative, there are no real solutions for (y + 2)^2. Therefore, there are no possible coordinates for point A if point B is moved to (-7, -2).

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The calculated value of the function g(x) when x = 5 is -2

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

The graph of the function g(x)

The value of g(5) is the value of the function at x = 5

When x = 2 is traced on the graph, we have

y = -2 when x = 5

This means that

g(5) = -2

Hence, the value of the function is -2

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The equivalent exponential function for this problem is given as follows:

[tex]m_b = 2000(1.05)^t(1.05)^4[/tex]

An exponential function has the definition presented according to the equation as follows:

[tex]y = ab^x[/tex]

In which the parameters are given as follows:

The function for this problem is given as follows:

[tex]m_b = 2000(1.05)^{t + 4}[/tex]

Applying the addition of exponents rule, the equivalent expression is given as follows:

[tex]m_b = 2000(1.05)^t(1.05)^4[/tex]

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Total Liabilities and Stockholders' Equity: $71,750

To complete the income statement and balance sheet based on the provided data, let's use the given figures:

Income Statement:

Total revenues: $308,000

Total expenses (excluding income taxes): $185,000

Income tax expense: $33,800

To calculate the net income, we subtract the total expenses and income tax expense from the total revenues:

Net income = Total revenues - Total expenses - Income tax expense

Net income = $308,000 - $185,000 - $33,800

Net income = $89,200

The completed income statement is as follows:

Income Statement:

Total Revenues: $308,000

Total Expenses: $185,000

Income Tax Expense: $33,800

Net Income: $89,200

Balance Sheet:

Cash balance, January 31: $66,250

Receivables from customers (all considered collectible): $33,800

Merchandise inventory (by inventory count at cost): $94,100

Payables to suppliers for merchandise purchased from them (will be paid during February): $26,550

Common stock: $45,200

The balance sheet provides a snapshot of the company's financial position at a specific date, in this case, January 31. Therefore, the completed balance sheet is as follows:

Balance Sheet:

Assets:

Cash: $66,250

Accounts Receivable: $33,800

Merchandise Inventory: $94,100

Total Assets: $194,150

Liabilities and Stockholders' Equity:

Accounts Payable: $26,550

Common Stock: $45,200

Total Liabilities and Stockholders' Equity: $71,750

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Step-by-step explanation:

11.16 days ok hope it helps