Subtract these polynomials.
(4x^2 - x+6) - (x^2 + 3) =
O A. 4x^2 - 2x+9
O B. 4x^2 - 2x + 3
O c. 5x^2 - x + 9
O D. 3x^2 - x + 3

Answer:

B. a+7

Step-by-step explanation:

B is the answer because it say older than which hints that you have to use subtraction. More than is commonly used to show that it is subtraction.

Answer:

A. -1

Multiplicative inverse = -1

Additive inverse = 1

B. 2/5

Multiplicative inverse = -5/2

Additive inverse = -2/5

C. -4/3

Multiplicative inverse = -3/4

Additive inverse = 4/3

D. 3

Multiplicative inverse = 1/3

Additive inverse = -3

Hope this helps :)

Based on the comparisons, the ratio that is greater than 5/8 is 15/24. The answer is 15/24.

To determine which ratio is greater than 5/8, we need to compare each ratio to 5/8 and see which one is larger.

Let's compare each ratio:

12/24: To simplify this ratio, we can divide both the numerator and denominator by their greatest common divisor (GCD), which is 12. 12/24 simplifies to 1/2. Comparing 1/2 to 5/8, we can see that 5/8 is greater than 1/2.

3/4: Comparing 3/4 to 5/8, we can convert both ratios to have a common denominator. Multiplying the numerator and denominator of 3/4 by 2, we get 6/8. We can see that 5/8 is less than 6/8.

15/24: Similar to the first ratio, we can simplify 15/24 by dividing both the numerator and denominator by their GCD, which is 3. 15/24 simplifies to 5/8, which is equal to the given ratio.

4/12: We can simplify this ratio by dividing both the numerator and denominator by their GCD, which is 4. 4/12 simplifies to 1/3. Comparing 1/3 to 5/8, we can see that 5/8 is greater than 1/3.

Based on the comparisons, the ratio that is greater than 5/8 is 15/24.

Therefore, the answer is 15/24.

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Answer:

-2/5

Step-by-step explanation:

-4/5÷2/1

-4/5×1/2

=-2/5

-2/4

I got it right on edgen

Answer:

-4x

Step-by-step explanation:

3-7=-4 just add a x

Answer:khan is 1.282 or c

Step-by-step explanation:

You can approximate the probability using the standard normal distribution table by looking up the closest values for Φ(2) and Φ(1).

To calculate the probability P(1 < z < 2) for a standard normal random variable, we can use the cumulative distribution function (CDF) of the standard normal distribution.

The CDF gives us the probability that a standard normal random variable is less than or equal to a given value. We can use this information to calculate the probability between two values.

Let's denote the CDF of the standard normal distribution as Φ(z). The probability P(1 < z < 2) can be calculated as follows:

P(1 < z < 2) = Φ(2) - Φ(1)

To calculate this, we need to look up the values of Φ(2) and Φ(1) from a standard normal distribution table or use a calculator/computer software. However, since I don't have access to real-time computations in this environment, I am unable to provide the exact numerical value.

But you can use statistical software or online calculators to find the precise value. Alternatively, you can approximate the probability using the standard normal distribution table by looking up the closest values for Φ(2) and Φ(1).

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Scenario: A small business owner needs to analyze their sales data to make informed decisions about pricing and profitability.

Supporting Detail 1: The concept of linear equations can be applied to determine the break-even point and set optimal pricing strategies for the business.

Worked Example 1: Let's say the small business sells a product for $10 each, and the fixed costs (expenses that don't vary with the number of units sold) amount to $500. The variable costs (expenses that depend on the number of units sold) are $2 per unit. We can use the formula for a linear cost equation (C = mx + b) to find the break-even point where revenue equals total costs:

10x = 2x + 500

Simplifying the equation, we get:

8x = 500

x = 500/8

x = 62.5

The break-even point is 62.5 units. Knowing this information, the business owner can make decisions about pricing, cost control, and production targets.

Supporting Detail 2: The concept of systems of equations can be applied to optimize the allocation of resources in the business.

Worked Example 2: Let's consider a scenario where the business owner sells two different products. Product A generates a profit of $5 per unit, while Product B generates a profit of $8 per unit. The business owner has a limited budget of $500 and wants to determine the optimal allocation of resources between the two products. We can set up a system of equations to represent the profit constraints:

x + y = 500 (total budget)

5x + 8y = P (total profit, represented as P)

By solving this system of equations, the business owner can find the optimal values of x and y that maximize the total profit while staying within the budget constraints.

Conclusion: Applying concepts from this algebra course to real-life scenarios, such as analyzing sales data for a small business, helps in understanding the material by providing practical applications. It demonstrates the relevance of algebra in making informed decisions, optimizing resources, and maximizing profitability.

These examples highlight how algebraic concepts enable problem-solving and provide valuable tools for individuals in various fields, including business and entrepreneurship.

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The value of the trigonometric expression cos²(B)/sin(A) is 2

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

sin(A) = 1/2

cos(B) = 1

The trigonometric expression to calculate is given as:

cos²(B)/sin(A)

Using the above as a guide, we have the following:

cos²(B)/sin(A) = 1²/(1/2)

Evaluate the exponents

cos²(B)/sin(A) = 1/(1/2)

Evaluate the quotient

cos²(B)/sin(A) = 2

Hence, the solution is 2

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Complete question

If sinA=1/2, cosB=1, calculate cos²(B)/sin(A)

for a two-tailed test at a 12.66% significance level, the critical values of z are approximately +1.53 and -1.53. We are looking for the z-score that corresponds to the area to the right of it (for the positive critical value) equal to 0.0633.

For a two-tailed test at a 12.66% significance level, we need to find the critical value of z.

Step 1: Determine the significance level for each tail.
Since this is a two-tailed test, we need to divide the overall significance level (12.66%) by 2. This gives us 6.33% (or 0.0633 in decimal form) in each tail.

Step 2: Find the z-score associated with the given significance level.
To find the critical value of z, you can use a z-table or an online calculator. We are looking for the z-score that corresponds to the area to the right of it (for the positive critical value) equal to 0.0633.

Using a z-table or calculator, you'll find that the z-score is approximately ±1.53.

So, for a two-tailed test at a 12.66% significance level, the critical values of z are approximately +1.53 and -1.53.

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There are 4 integers between 20 and 30 that have a prime factorization with exactly 3 factors that are not necessarily unique.

To find the integers with a prime factorization having exactly 3 factors, we need to look for numbers that can be expressed as the product of two distinct prime numbers.

Step 1: Identify the prime numbers between 20 and 30. The prime numbers in this range are 23, 29.
Step 2: Determine all possible pairs of distinct prime numbers. In this case, we have only one pair: (23, 29).
Step 3: Calculate the products of these pairs. The products of (23, 29) are 667 and 667.
Step 4: Count the integers between 20 and 30 that match these products. We have two integers that match, which are 21 and 27.
Step 5: Check if these integers have exactly 3 factors. The factors of 21 are 1, 3, 7, and 21 (a total of 4 factors), so it does not meet the criteria. The factors of 27 are 1, 3, 9, and 27 (a total of 4 factors), so it also does not meet the criteria.

Therefore, there are no integers between 20 and 30 with a prime factorization having exactly 3 factors that are not necessarily unique.

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Answer:

3800

Step-by-step explanation:

342 is the 9 percent that have shown up. If you divide that by nine you would get on percent of the total which comes out to be 38. so you multiply 38 by 100 and get 3800 which is 100% of the tickets sold.

The local maximums of f(x,y) = sin(x)sin(y) occur at (nπ, mπ) and the local minimums occur at (nπ + π/2, mπ + π/2), where n and m are integers.

The given function f(x,y) = sin(x)sin(y) is a product of two periodic functions, each with a period of 2π. Hence, the function f(x,y) also has a periodicity of 2π in both x and y directions. To find the local maximums and minimums of the function, we need to look for points where the partial derivatives with respect to x and y are equal to zero.

Taking the partial derivative of f(x,y) with respect to x, we get cos(x)sin(y), which is equal to zero at points (nπ, mπ), where n and m are integers. Similarly, taking the partial derivative of f(x,y) with respect to y, we get cos(y)sin(x), which is also equal to zero at points (nπ, mπ). Therefore, the local maximums of f(x,y) occur at these points.

On the other hand, taking the partial derivative of f(x,y) with respect to x, we get cos(x)sin(y), which is equal to π/2 at points (nπ + π/2, mπ), where n and m are integers. Similarly, taking the partial derivative of f(x,y) with respect to y, we get cos(y)sin(x), which is equal to π/2 at points (nπ, mπ + π/2). Therefore, the local minimums of f(x,y) occur at these points.

In summary, the local maximums of f(x,y) = sin(x)sin(y) occur at (nπ, mπ) and the local minimums occur at (nπ + π/2, mπ + π/2), where n and m are integers.

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Answer:

500000

Step-by-step explanation:

We need to find the value of the given expression :

\(5^{\dfrac{5}{2}}\times 20^{\dfrac{3}{2}}\div 10^{-2}\)

We can do it as per BODMAS rule.

\(5^{\dfrac{5}{2}}\times (\dfrac{20^{\dfrac{3}{2}}}{10^{-2}})\\\\=5^{\dfrac{5}{2}}\times {20^{\dfrac{3}{2}}}\times {10^{2}}\\\\=5^{\dfrac{5}{2}}\times {20^{\dfrac{3}{2}}}\times 100\\\\=5^{\dfrac{5}{2}}\times {(5\times 4)^{\dfrac{3}{2}}}\times 100\\\\=5^{\dfrac{5}{2}}\times {(5^{\dfrac{3}{2}})\times (4)^{\dfrac{3}{2}}}\times 100\\\\=5^{(\dfrac{5}{2}+\dfrac{3}{2})}\times 2^2^{\dfrac{3}{2}}\times 100\\\\=5^4\times 2^3\times 100\\\\=625\times 8\times 100\\\\=500000\)

So, the required answer is 500000.

The slope and the y-intercept of the line that is perpendicular to y = 5x - 2 and passes through the origin are given as follows:

The line for this problem is given as follows:

y = 5x - 2.

Meaning that the slope and the intercept are given as follows:

When two lines are perpendicular, the multiplication of their slopes is of -1, hence the slope of the line perpendicular to y = 5x - 2 is given as follows:

5m = -1

m = -1/5.

The line also passes through the origin, meaning that when x = 0, y = 0, hence the intercept is of zero.

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Answer:

171 is the answer of that question

Answer:

1.-3

2.4

3.3

4. -4

5. -4

6.3

7. -19/9

8. -3

9.0

10. -2

Step-by-step explanation:

Answer:

coordinates of point g is ( -6, 14)

Step-by-step explanation:

The coordinates of the point which divides the point (x1,y1) and (x2,y2) in m:n ratio is given by (nx1+mx2)/(m+n), (ny1+my2)/(m+n).

___________________________________________

given point

F(-1, -1) to H(-8, 20)

ratio : 5:2

the coordinates of point g is

(2*-1+5*-8)/(5+2), (2*-1+5*20)/(5+2)

=> (-2 -40/7 , -2+100/7)

=> (-42/7, 98/7)

=>( -6, 14)

Thus ,  coordinates of point g is ( -6, 14)

The independent set in a graph is a set of vertices that contain no edges. So, no neighboring vertices are included. The max independent set problem is to get an independent set of maximum size in graph G.

The solution for this question is discussed below:

a) The integer linear program for the max independent set problem is as follows:

maximize ∑x_i Subject to: x_i+x_j ≤ 1 {i,j} ∈ E;x_i ∈ {0, 1} ∀i. The variable x_i can represent whether the ith vertex is in the independent set. It can take on two values, either 0 or 1.

b) The LP relaxation for the max independent set problem is as follows:

Maximize ∑x_iSubject to:

xi+xj ≤ 1 ∀ {i, j} ∈ E;xi ≥ 0 ∀i. The variable xi can take on fractional values in the LP relaxation.

c) The family of graphs is as follows:

Consider a family of graphs G = (V, E) defined as follows. The vertex set V has n = 2^k vertices, where k is a positive integer. The set of edges E is defined as {uv:u, v ∈ {0, 1}^k and u≠v and u, v differ in precisely one coordinate}. It can be shown that the size of the max independent set is n/2. Using LP, the value can be determined. LP provides a value of approximately n/4. Therefore, the ratio LP-OPT/OPT is at least c/4. Therefore, the ratio is in for a constant c>0.

d) The size of a max-independent set is equivalent to the number of vertices minus the minimum vertex cover size.

e) The 2-approximation algorithm for vertex cover implies a 2-approximation algorithm for the max independent set.

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Answer:

3c+ (25x)/(2) + 2

Answer:

a) C = 3 + 5h

b) Slope = 5

y - intercept = 3

c) $28

Step-by-step explanation:

For babysitting, Nicole charges a flat fee of $3, plus $5 per hour.

a) Write an equation for the cost, C, after h hours of babysitting.

The equation for the cost C is given as:

C = $3 + $5 × h

C = 3 + 5h

b) What do you think the slope and intercept represent?

The equation of a straight line is represented by

y = mx + c

Where

Slope = m and y-intercept = c

Comparing this with our equation in a

C = 3 + 5h = C = 5h + 3

mx = 5h

c = 3

Therefore,

Slope = 5

y - intercept = 3

c)How much money will she make if she baby-sits 5 hours?

We have our equation above as:

C = 3 + 5h

h = 5 hours

Hence,

C = 3 + 5 × 5

C = 3 + 25

C = $28

She would make $28

The Central angle for Brown,Ginger and Blonde hair color is 180°,72° and 108°.

To work out the central angle for each sector in the pie chart, you need to calculate the percentage of each hair color relative to the total number of people surveyed. Then, you can use this percentage to find the central angle for each sector.

Let's calculate the central angles for each hair color:

a) Hair Color: Brown

Frequency: 15

To find the percentage, divide the frequency by the total number of people surveyed and multiply by 100:

Percentage of Brown hair color = (15 / 30) * 100 = 50%

To find the central angle, multiply the percentage by 360 (the total degrees in a circle):

Central angle for Brown hair color = 50% * 360° = 180°

b) Hair Color: Ginger

Frequency: 6

Percentage of Ginger hair color = (6 / 30) * 100 = 20%

Central angle for Ginger hair color = 20% * 360° = 72°

c) Hair Color: Blonde

Frequency: 9

Percentage of Blonde hair color = (9 / 30) * 100 = 30%

Central angle for Blonde hair color = 30% * 360° = 108°

Now, let's draw the pie chart to show this information:

1. Start by drawing a circle to represent the entire data set.

2. Divide the circle into sectors according to the central angles calculated above. The Brown sector will occupy 180°, the Ginger sector will occupy 72°, and the Blonde sector will occupy 108°.

3. Label each sector with the corresponding hair color (Brown, Ginger, Blonde) and include the respective frequencies (15, 6, 9) next to each label.

4. Optionally, you can use different colors to represent each sector. For example, you can use brown for the Brown sector, orange for the Ginger sector, and yellow for the Blonde sector.

5. Add a title to the chart, such as "Hair Color Distribution."

Remember to include a legend or key that explains the colors used for each hair color.

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The probable question may be:

The colour 30 people's hair was recorded in a survey, and the results are going to be shown in a pie chart.

Hair colour :-Brown,Ginger,Blonde

Frequency :-15,6,9

a) Work out the central angle for each sector.

b) Draw a pie chart to show this information

Answer:

Profit % = 39%

Step-by-step explanation:

Cost price of the article = 9

Price for repairing = 4

Therefore, Total cost of the article = 9 + 4 = 13

Selling price  of the article = 18

Profit = 18 - 13 = 5

Hence,

          \(Profit \% = \frac{Profit}{Cost \ price} \times 100\\\\\)

                        \(= \frac{5}{13} \times 100\\\\=38.46 \%\\\\=38.5 \%\)

Profit percent (to the nearest %) = 39%

The maximum value of the data is given as follows:

75.

A box and whisker plot shows these five metrics from a data-set, listed and explained as follows:

The maximum value on the box plot is the end of the plot, hence it is of 75.

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\((8+0-2A^{2} -7 )A^{2} +7= (1-2A^{2} )A^{2}+7 = A^{2} -2A^4 +7\)

ok done. Thank to me :>

Isolating for a variable: rearranging an equation so that a variable is on its own. This is done by performing inverse operations until a variable is isolated.

\(P-9=-3w+9-9\)

\(p-9=-3w\)

\(\frac{p-9}{-3}=\frac{-3w}{-3}\)

\(-\frac{P-9}{3} =w\)

Answer:

Multiplication:

4.5x = 36 or ? · 4.50 = 36

Division:

Total cost  / cost per ticket = number of tickets or 36 ÷ 4.50 = ?

Answer:

First, convert R as a percent to r as a decimal

r = R/100

r = 4.7/100

r = 0.047 rate per year,

Then solve for A,

              \(A = P\cdot e^{rt}\\\\A= 1800 \cdot (2.71828)^{(.047)(15)}, \ where \ e = 2.71828\\A = 3642.92\)  

The amount he receives after 15years $3,642.92

Answer:

x = -56

Step-by-step explanation:

x/7 = -8

Multiply each side by 7

x/7 *7 = -8*7

x = -56