Find the surface area of the pyramid.
PLEASE HELP I HAVE TO SUBMIT THIS SOON AND I CANT FIGURE IT OUT

An inequality that correctly models the situation is:

4x² + 50x + 154 ≤ 320

The correct answer is an option (D)

Let us assume that l represents the length (height) and w represents the width of the poster and frame together.

Here, the original poster is 11 inches wide and 14 inches tall and the frame will be x inches thick on each side.

So, the height l would be,

l = (14 + 2x) inches

and the width w would be,

w = (11 + 2x) inches

We know that the formula for the area of rectangle.

A = l × w

So, the expression for the area of the poster and frame together would be,

A = (14 + 2x) × (11 + 2x)

A = 154 + 22x + 28x + 4x²

A = 4x² + 50x + 154

The total area of the poster and frame together to be no more than 320 square inches.

So, we get an inequality

A ≤ 320 in²

4x² + 50x + 154 ≤ 320 in²

Thus, the correct answer is an option (D)

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Find the complete question below.

An equation that expresses the relationship between the lengths of the three sides is a^2 + b^2 = c^2.

In a right triangle, the side opposite the right angle is called the hypotenuse, while the other two sides are called the legs.

The relationship between the lengths of the three sides in a right triangle is described by the Pythagorean Theorem, which states that the sum of the squares of the lengths of the legs equals the square of the length of the hypotenuse.

Mathematically, this can be represented as:

a^2 + b^2 = c^2

where a and b are the lengths of the legs, and c is the length of the hypotenuse.

For the given right triangle with lengths 5, 2.2360679775, and 5.47722557505, we can plug in the values of a, b, and c to get:

5^2 + 2.2360679775^2 = 5.47722557505^2

which simplifies to:

25 + 5 = 30

This equation is true, indicating that the given lengths do indeed form a right triangle according to the Pythagorean Theorem.

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Answer:

10 cm

Step-by-step explanation:

V =1/3 x π x r² x h

94.25 =1/3 x π x 3² x h

94.25 ÷ 3π =h

so, h= 10 cm

The measure of angle ∠B in triangle ABC will be 35.89°.

Given that:

Sides, AC = 23 miles and AB = 22 miles

Angle, ∠A = 110°

The sine law in the triangle ΔABC is given as,

AB / sin C = BC / sin A = AC / sin B

23 / sin C = BC / sin 110° = 23 / sin B

The value of BC is calculated as,

BC² = AB² + AC² - 2 AB·AC cos A

BC² = 22² + 23² - 2 x 22 x 23 x cos 110°

BC² = 1359.124

BC = 36.87 miles

The value of angle B is calculated as,

36.87 / sin 110° = 23 / sin B

sin B = 0.586

∠B = 35.89°

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The amount of the sales tax is 0.26

Now, The sales tax is 4%.

The cost of lunch is 6. 50.

=> 4% of 6.50

4/ 100 × 6.50

0.04 × 6.50

=> 0.26

Hence, The amount of the sales tax is 0.26

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Answer:

425.2

Step-by-step explanation:

v = 1/3[tex]\pi r^{2} h[/tex]  If the diameter is 12,  then the radius is 6

v = [tex]\frac{3.14(6^{2})12 }{3}[/tex]

v = [tex]\frac{3.14(36)(12)}{3}[/tex]

v = 452.16

Helping in the name of Jesus.

Answer:

what are the options?

Step-by-step explanation:

The length of the diagonal from the given shape above would be = 12

To calculate the length of the diagonal from P to Q, the Pythagorean theorem should be used such as;

C² = a² + b²

The Pythagorean theorem states that the the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.

Therefore;

C = ?

a = 8

b = 9

C² = 8²+9²

C² = 64+81

C² = 145

C = √145

= 12.

Therefore, the length of the diagonal P to Q of the given shape above is 12.

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Therefore , the solution of the given problem of equation comes out to be the system of equations has an answer of x = -10.51 and  y = 6.26.

In intricate algorithms, variable words are typically employed to demonstrate consistency between two opposing arguments. Equations are academic phrases that are used to demonstrate the equality of different academic figures. Consider the specifics of the above x + 7 suggestions. improving in this case provides b + 7 while constructing y + 7 before integrating.

Here,

Let's apply these steps to the provided equation system:

=> -8y = 5x + 17 ...(1)

=> -7y = -2x - 17 ...(2)

Solve equation (1) for x in terms of y in step 1:

=> -8y = 5x + 17

=> 5x = -8y - 17

=> x = (-8y - 17)/5

Step 2: Replace the value of x in equation (2) with the expression from step 1:

=> -7y = -2((-8y - 17)/5) - 17

Step 3: Address the equation that results for y.

=> -7y = (-16y - 34)/5 - 17

=> -35y = -16y - 34 - 85

=> -35y + 16y = -119

=> -19y = -119

=> y = (-119)/(-19)

=> y = 6.26

Step 4: Replace the formula for x from step 1 with the value of y obtained in step 3:

=> x = (-8(6.26) - 17)/5

=> x = -10.51

Consequently, the system of equations has an answer of x = -10.51 and  y = 6.26.

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They form a parallelogram because opposite sides of the given points have an equal slope.

The slope of a line is a measure of its steepness. Mathematically, the slope is calculated as "rise over run" (change in y divided by change in x).

To prove that the four points (2,1), (-1,-5), (1,5), and (-2,-1) are the vertices of a parallelogram, we need to show that opposite sides are parallel.

First, we can find the slope of the line connecting (2,1) and (-1,-5):

m1 = (1 - (-5)) / (2 - (-1)) = 6/3 = 2

Next, we can find the slope of the line connecting (1,5) and (-2,-1):

m2 = (5 - (-1)) / (1 - (-2)) = 6/3 = 2

Since the slopes are the same, the line segments connecting these points are parallel.

Now, we can find the slope of the line connecting (2,1) and (1,5):

m3 = (5 - 1) / (1 - 2) = -4

Next, we can find the slope of the line connecting (-1,-5) and (-2,-1):

m4 = (-1 - (-5)) / (-2 - (-1)) = 4/3

Since the slopes are different, the line segments connecting these points are not parallel.

However, we can also see that the line connecting (1,5) and (-1,-5) has the same slope as the line connecting (-2,-1) and (2,1), which is:

m5 = (5 - (-5)) / (1 - (-1)) = 10/2 = 5

Therefore, the line segments connecting (1,5) and (-1,-5), and (-2,-1) and (2,1) are parallel.

Since opposite sides are parallel, the four points (2,1), (-1,-5), (1,5), and (-2,-1) form a parallelogram.

Therefore, they form a parallelogram because opposite sides of the given points have an equal slope.

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Answer: C

Step-by-step explanation:

For our unknown value x, the opposite side = 10 and the adjacent side = 18, using this information you can use SOH CAH TOA.

TOA refers to opposite over adjacent, which would be

tan x = 10/18.

Hope this helps!

Therefore, can b and c are the same better deal since they have the same price per cubic inch using the volume of a cylinder.

To compare which can of beans is a better deal, we need to calculate the volume of each can and divide it by the price. The can with the highest volume per dollar is the better deal.

a) The volume of the can is V=πr²h=(3.14)(3²)(9)=254.34 cubic inches. The price per cubic inch is $39.95/254.34 = $0.157, rounded to three decimal places.

b) The volume of the can is V=πr²h=(3.14)(2²)(3)=37.68 cubic inches. The price per cubic inch is $5.96/37.68 = $0.158, rounded to three decimal places.

c) The volume of the can is V=πr²h=(3.14)(3²)(3)=84.78 cubic inches. The price per cubic inch is $13.41/84.78 = $0.158, rounded to three decimal places.

Therefore, can b and c are the same better deal since they have the same price per cubic inch.

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Answer: 3.610^5+4.810^4 in scientific notation is 4.08*10^5.

Step-by-step explanation: The initial step to convert 3.610^5+4.810^4 into scientific notation is to combine the two values.

The sum of 3610 multiplied by 10 to the power of 5 and 4810 multiplied by 10 to the power of 4 is equal to adding 3610 multiplied by 10 to the power of 4 and 4810 multiplied by 10 to the power of 4, resulting in 40.8 multiplied by 10 to the power of 4.

We can convert 40.8*10^4 to scientific notation by shifting the decimal point to the left until there is only one non-zero digit to the left of the decimal, and denoting the number of decimal places moved with a 10 exponent.

Rewording: When you raise 40.810 to the power of 4, the result is 4.0810 to the power of 5 when you add 1 to the exponent. This is equivalent to multiplying 4.08 by 10 and raising it to the power of 5.

The cost of the envelope and stamp may vary depending on the location and the method of delivery. In this example, we assumed that the cost of the envelope is $0.15 and the cost of the stamp is $0.39, but these values may change based on the specific circumstances.

What is cost?

Cost" is the amount of money or resources that are required to produce, acquire, or obtain something. In other words, cost refers to the expenses that are incurred in the process of acquiring or producing a good or service.

For example, the cost of producing a product may include the cost of raw materials, labor, overhead expenses, and other related costs. Similarly, the cost of acquiring a product may include the purchase price, taxes, shipping costs, and any other fees or expenses associated with the purchase. Overall, cost is a crucial factor in business and economics, as it determines the profitability of a venture and helps to make informed decisions regarding investments and pricing strategies

To find the cost of the laptop after the mail-in rebate and the cost of the envelope and stamp, we can follow these steps:

Subtract the mail-in rebate from the original price of the laptop:

$2,149.99 - $200 = $1,949.99

Add the cost of the envelope and stamp to the cost of the laptop after the mail-in rebate:

$1,949.99 + $0.15 + $0.39 = $2,090.53

Therefore, the cost of the laptop after the mail-in rebate and the cost of the envelope and stamp is $2,090.53.

To explain this calculation, we first subtract the mail-in rebate of $200 from the original price of the laptop, which gives us the price of the laptop after the rebate. Then, we add the cost of the envelope and the stamp to this price to get the total cost of the laptop after the rebate and the cost of the envelope and stamp.

Therefore, The cost of the envelope and stamp may vary depending on the location and the method of delivery. In this example, we assumed that the cost of the envelope is $0.15 and the cost of the stamp is $0.39, but these values may change based on the specific circumstances.

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the condition for a function's graph to pass through the origin in polar coordinates is that the function's value at θ=0 is equal to zero, while the condition for a function's graph to pass through the origin in rectangular coordinates is that the function's value at (0,0) is equal to zero.

How to solve the question?

In polar coordinates, a graph of a function passes through the origin if and only if the function's value at θ=0 is equal to zero. This is because the origin in polar coordinates represents the point (r=0, θ), where r is the distance from the origin and θ is the angle of the point with respect to the positive x-axis. When a function's value at θ=0 is equal to zero, it means that the point on the graph at θ=0 lies on the positive x-axis and has a distance of r=0 from the origin, which is the origin itself.

In contrast, a graph of a function in rectangular coordinates passes through the origin if and only if the function's value at (0,0) is equal to zero. This is because the origin in rectangular coordinates represents the point where the x and y axes intersect, and a point on the graph with coordinates (x,y) passes through the origin if and only if x=0 and y=0, which means the function's value at (0,0) is equal to zero.

In summary, the condition for a function's graph to pass through the origin in polar coordinates is that the function's value at θ=0 is equal to zero, while the condition for a function's graph to pass through the origin in rectangular coordinates is that the function's value at (0,0) is equal to zero.

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Answer:

69/5 or 13.8

Step-by-step explanation:

..…........

The graph of a quadratic function in the form of y = ax² + bx + c, where "a" is not equal to zero, has a minimum value when "a" is positive.

what is quadratic function ?

A quadratic function is a second-degree polynomial function of the form f(x) = ax² + bx + c, where "a", "b", and "c" are constants, and "a" is not equal to zero. The graph of a quadratic function is a U-shaped curve called a parabola.

In the given question,

The graph of a quadratic function in the form of y = ax² + bx + c, where "a" is not equal to zero, has a minimum value when "a" is positive. This is because the parabola opens upward, and the vertex of the parabola, which represents the minimum point of the function, is located at the point (-b/2a, c - b²/4a).

On the other hand, if "a" is negative, the graph of the quadratic function will have a maximum value. This is because the parabola opens downward, and the vertex of the parabola represents the maximum point of the function.

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Answer: To find the average change in temperature per hour, we need to divide the total change in temperature by the number of hours.

The temperature dropped 25 degrees over 8 hours, so the average change per hour is:

25 degrees / 8 hours = 3.125 degrees per hour

Therefore, the temperature on top of Mt. Katahdin dropped by an average of 3.125 degrees per hour.

Step-by-step explanation: The temperature on top of Mt. Katahdin dropped by an average of 3.125 degrees per hour.

The equation will be w = 40b

To find the total weight (w) of the soil in pounds when Yuki stacks b bags, you can use a simple linear equation. Each bag weighs 40 pounds, so the equation will be: w = 40b

This equation shows that the total weight (w) of the soil in pounds is equal to the number of bags (b) multiplied by the weight of each bag (40 pounds).

The above answer is based on the information below as seen in the picture;

Yuki works at a garden store. She is stacking 40 pounds bags of soil.

write an equation that gives the total weight, w, of the soil in pounds when Yuki stacks b bags.

+ - . =         b, w, 40

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Answer: Ok so first you would take the 86 and multiply it by .2 or 20% and that would get you 17.2 for blank 2

then you would take 86 and subtract 17.2 to get 68.8 for blank 3

sooo... he would pay 68 dollars and 80 cents with the coupon

Step-by-step explanation:

im really smart and good at math : )

For the given problem, The correct answer will be option 2: The IQR of 13 is the most accurate to use, since the data is skewed.

The Interquartile Range (IQR) is a measure of variability that compares the 25th percentile (Q1) to the 75th percentile (Q3) of a dataset (Q3). It is frequently used to describe the distribution or variability of data that may contain outliers or is not regularly distributed.

The data in the histogram is not evenly distributed in this example because there are many donations at the higher end of the scale (16 to 20), resulting in a positively skewed distribution. Using a range of 20, which indicates the difference between the greatest and lowest value in the dataset, may not adequately depict the data's variability since it is significantly impacted by outliers at the extremes.

For the given dataset, IQR can be calculated as:

Arrange the dataset in ascending order:

[tex]5, 5, 6, 8, 10, 15, 18, 20, 20, 20, 20, 20, 20[/tex]

Find the median (Q2), i.e. the middle value of given dataset:

Median (Q2) = 15

Find the lower quartile (Q1), which is the median of the lower half of the dataset:

[tex]Q1 = Median of (5, 5, 6, 8, 10) = 6[/tex]

Find the upper quartile (Q3) i.e. median of the upper half of dataset:

[tex]Q3 = Median \;of (15, 18, 20, 20, 20, 20, 20) = 19[/tex]

[tex]IQR = Q3 - Q1 = 19 - 6 = 13[/tex]

Utilizing the IQR of 13, which represents the range between the 25th percentile (Q1 = 6) and the 75th percentile (Q3 = 19), would provide a more accurate measure of variability that is less impacted by outliers at the higher end of the data. It would also offer a better indication of the organization's typical donations because it captures the middle 50% of the data.

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By using slope intercept , These were the two points on the line: (0,-2) and (7,2).

A line is defined by the equation y = mx + b, which is also known as the slope-intercept form. When the line is graphed, m represents the slope and b the point at which the line intersects the y-axis.

We may use the slope-intercept form of a line, which is y=mx+b where m is the slope and b is the y-intercept, to graph the line y=4/7x-2. Therefore, m=4/7 and b=-2.

These variables allow us to plot two spots along the line. Since the line crosses the y-axis at (0,-2) (the y-intercept), that location will be one of the points.

We can utilize the slope of 4/7 to locate a different point along the line. This indicates that we advance up 4 units in the y direction for every 7 units we move to the right (in the x direction). We can therefore move 7 units to the right and then 4 units up, starting at (0,-2), to reach (7,2).

So now we have two points on the line: (0,-2) and (7,2). These points can be plotted on a coordinate plane, and then a straight line can be drawn through them to create the graph.

Graph given below:

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The values of a that make (x - a) a factor of x^4 - 5x³ - 21x² - 23x - 8 are given as follows:

a = 8 and a = -1.

The polynomial is given as follows:

f(x) = x^4 - 5x³ - 21x² - 23x - 8

By the factor theorem, x - a is a factor of a polynomial f(x) if f(a) = 0.

The numeric value at x = a is given as follows:

f(a) = a^4 - 5a³ - 21a² - 23a - 8.

Hence the values of a are obtained solving the equation presented as follows:

a^4 - 5a³ - 21a² - 23a - 8 = 0.

Using a calculator, the values of a are given as follows:

a = 8 and a = -1.

(the root of -1 has a multiplicity of 3).

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Answer: The angle of depression from Jesenia to the duck is 25.17°. The solution has been obtained by using trigonometry.

What is trigonometry?

Right-angled triangles, their sides, angles, and connections are the main topics of the mathematical field of trigonometry.

We are given that that Jesenia is standing on a pedestrian bridge that is 9.5 feet above the lake and the duck is 4.5 feet away from jesenias position on the bridge.

This means that perpendicular is 9.5 and base is 4.5.

We know that tan θ is value of opposite side to adjacent side.

So, we get

⇒ Tan θ =

⇒ Tan θ = 0.47

⇒ θ = 25.17°

Hence, the angle of depression from Jesenia to the duck is 25.17°.

Step-by-step explanation:

Welcome!

Yes, the transformation is a rigid motion because the angle measures and the distances between the vertices of the image are the same as the corresponding angle measures and distances in the preimage.

Since the shape and size are the same in both the preimage and the image, and only the position has changed, this transformation is considered a rigid motion. Rigid motions, such as translations, rotations, and reflections, preserve the shape and size of the original figure.

Assuming the shape has been bent, it means that the angle measures and distances between the vertices have been altered. But this is not the case.

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There are almost 8 different dessert options that can be served.

Given that there are four fruit alternatives (watermelon, cantaloupe, pineapple and mango) and two ice cream selections (lemon or piquin chilli), the question asks how many different dessert options are offered. We can utilise the multiplication principle of counting. In this case, there are 4 ways to choose a fruit and 2 ways to choose an ice cream flavor. Using the multiplication principle, we can multiply these choices to find the total number of dessert options:

4 (fruit options) x 2 (ice cream options) = 8

Therefore, there are 8 different dessert options that can be served.

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--The complete Question is, Today's dessert is any of these fruits: watermelon, cantaloupe, pineapple or mango, accompanied by lemon or piquin chili ice cream. How many different desserts can be served? --

Answer: the answer is d) 0.3466.

Step-by-step explanation:

Starting with the equation:

6e^(4x) - 3 = 21

Add 3 to both sides:

6e^(4x) = 24

Divide both sides by 6:

e^(4x) = 4

Take the natural logarithm of both sides:

ln(e^(4x)) = ln(4)

Use the property of logarithms that ln(e^y) = y:

4x ln(e) = ln(4)

Simplify:

4x = ln(4)

Solve for x by dividing both sides by 4:

x = (1/4) ln(4)

Using a calculator, we get:

x ≈ 0.3466

Therefore, the answer is d) 0.3466.

The soft drink vendor's maximum profit per day is $5250, and he must sell 1500 cans of soda pop to reach the maximum profit.

To find the maximum profit per day for the soft drink vendor, we need to use the formula P(x) = 0.001x^2 + 3x + 1800, where x is the number of cans of soda pop sold in one day.

To find the maximum profit, we need to find the vertex of the parabola represented by the profit function. The x-coordinate of the vertex is given by -b/2a, where a = 0.001 and b = 3. Plugging in these values, we get x = -3/(2*0.001) = -1500.

Since the soft drink vendor cannot sell a negative number of cans, we know that the maximum profit occurs at the closest whole number to x = -1500, which is x = 1500.

To find the maximum profit per day, we can plug in x = 1500 into the profit function:

P(1500) = 0.001(1500)^2 + 3(1500) + 1800 = $5250

Therefore, the soft drink vendor's maximum profit per day is $5250, and he must sell 1500 cans of soda pop to reach the maximum profit.

To find the maximum profit per day and the number of cans needed to reach that profit, we'll first need to find the critical point of the given quadratic profit function, P(x) = -0.001x^2 + 3x - 1800.

Step 1: Find the derivative of P(x) with respect to x. This will give us the rate of change of profit as the number of cans sold changes.

P'(x) = -0.002x + 3

Step 2: Set the derivative equal to zero and solve for x. This will give us the critical point where the maximum profit occurs.

-0.002x + 3 = 0

x = 1500 cans

Step 3: Substitute the critical point (x = 1500) back into the profit function P(x) to find the maximum profit.

P(1500) = -0.001(1500)^2 + 3(1500) - 1800

P(1500) = $600

So, the maximum profit per day is $600, and the soft drink vendor must sell 1500 cans to reach the maximum profit.

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The maximum profit per day is $4800, and the vendor must sell 1500 cans of soda pop to reach this maximum profit.

The profit function for the soft drink vendor is given by:

P(x) = [tex]0.001x^2 + 3x + 1800[/tex]

To find the maximum profit, we need to find the vertex of the parabola represented by this function. The x-coordinate of the vertex can be found using the formula:

x = -b / (2a)

where a = 0.001 and b = 3. Substituting these values, we get:

x = -3 / (2 * 0.001) = -1500

Since the value of x cannot be negative in this context, we know that the maximum profit occurs at x = 1500. To find the maximum profit, we substitute this value of x into the profit function:

P(1500) =[tex]0.001(1500)^2 + 3(1500) + 1800 = $4800[/tex]

Therefore, the maximum profit per day is $4800, and the vendor must sell 1500 cans of soda pop to reach this maximum profit.

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Cash received for interest during  2014 was $3,500 .The following equation can be used to determine the amount of money received as interest in 2014:

Amount received as interest equals Interest Income for 2014 plus the decline in Interest Receivable

The difference between the balance of interest receivable at December 31, 2013, and at December 31, 2014, can be used to calculate the decline in interest receivable:

Reduced interest due = Interest due at December 31, 2013, minus Interest due at December 31, 2014, which equals $1,100 minus $1,400, or -$300.

The fact that the balance of interest receivable increased from 2013 to 2014 indicates that the company produced more interest money during the year than it received. In light of this, the money earned on interest in 2014 is:

Interest income from 2014 plus a decrease in interest receivable equals $3,200 minus (-$300) to $3,500 in interest payments received.

Hence, $3,500 is the correct response (C).

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