It has been reported that 48% of teenagers play video games on their phones. A


random sample of 60 teenages is drawn. Find the probability that the proportion of


teenagers in the sample who play videos games on their phone is less than 0. 489

Limiting space heating would help decrease the greatest carbon-releasing activity in US homes.

From the table, we can see that space heating accounts for the largest percentage of energy use in US homes at 45%. Therefore, by limiting space heating, we can significantly reduce the amount of carbon released into the atmosphere, thus decreasing our carbon footprint.

Other activities like limiting time in hot showers, wearing layers of clothing, and turning off lights and electronics when not in use can also help reduce our carbon footprint, but they are not as effective as limiting space heating.

Additionally, we can consider using energy-efficient heating systems, improving insulation, and reducing air leaks to further reduce our energy use and carbon footprint.

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The area of a parallelogram is given by the formula:

$\sf\implies{\boxed{A = bh}}$

where $b$ is the length of the base and $h$ is the height.

In this case, the base is 36 inches and the height is 45 inches, so the area of the parallelogram is:

$\sf\implies\:A = bh = 36 \cdot 45 = 1620$

Therefore, the area of the parallelogram-shaped window is 1620 square inches.

[tex]\begin{align}\colorbox{black}{\textcolor{white}{\underline{\underline{\sf{Please\: mark\: as\: brillinest !}}}}}\end{align}[/tex]

[tex]\textcolor{lime}{\small\textit{If you have any further questions, feel free to ask!}}[/tex]

[tex]{\bigstar{\underline{\boxed{\sf{\color{red}{Sumit\:Roy}}}}}}\\[/tex]

Answer:

1620 inches ^2

Step-by-step explanation:

The area of a parallelogram is simply put as:

A=bh

where b is base and h is height

Given b is 36 and 45 is our h, we can now solve for the area.

A=(36)(45)

A=1620

Friendly reminder:

When multiplying two of the same units, remember to square them to have the correct labeling, so in conclusion, our answer is:

1620 inch.^2

The searchlight should be 1/3 feet deep at the edge of the opening. Since the paraboloid is a continuous surface, the depth will increase gradually from the edge of the opening to the vertex at (0,0,1).

Determine the depth of the searchlight shaped like a paraboloid of revolution, we need to use the equation for the standard form of a paraboloid of revolution:
z = (x^2 + y^2) / (4f)
where z is the depth, x and y are the horizontal and vertical coordinates, and f is the focal length of the paraboloid.
We know that the light source is located 1 feet from the base along the axis of symmetry, which means that the vertex of the paraboloid is at (0,0,1).
We also know that the opening is 6 feet across, which means that the horizontal distance from one side of the opening to the other is 3 feet.
Using this information, we can find the value of f:
f = (d/2)^2 / 2r
where d is the diameter of the opening (6 feet), and r is the radius of curvature at the vertex (1 foot).
f = (6/2)^2 / 2(1) = 4.5 feet
Now we can plug in the values for x, y, and f to solve for z:
z = (x^2 + y^2) / (4f)
z = (x^2 + y^2) / (4(4.5))
z = (x^2 + y^2) / 18
Since the opening is 6 feet across, we know that the maximum value of x is 3 feet. Therefore, we can use the maximum value of y (also 3 feet) to find the depth at the edge of the opening:
z = (3^2 + 3^2) / 18
z = 6/18
z = 1/3 feet
So the searchlight should be 1/3 feet deep at the edge of the opening. However, since the paraboloid is a continuous surface, the depth will increase gradually from the edge of ×the opening to the vertex at (0,0,1).

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The given question is incomplete, the complete question is given

"  Full Boat Manufacturing has projected sales of $115 million next year. Costs are expected to be $67 million and net investment is expected to be $12 million. Each of these values is expected to grow at 14 percent the following year, with the growth rate declining by 2 percent per year until the growth rate reaches 6 percent, where it is expected to remain indefinitely. There are 5.5 million shares of stock outstanding and investors require a return of 13 percent on the company’s stock. The corporate tax rate is 21 percent.

What is your estimate of the current stock price?

The estimate of the current stock price is $13.11 per share.

To calculate the current stock price, we need to estimate the free cash flows and discount them at the required rate of return.

First, we determine the firm's free cash flow (FCFF) for the following year.

FCFF = Sales - Costs - Net Investment*(1-t)

= $115 million - $67 million - $12 million*(1-0.21)

= $31.02 million

Now, we will calculate the expected growth rate in FCFF

g = (FCFF Year 2 / FCFF Year 1) - 1

FCFF Year 2 = FCFF Year 1 × (1 + g)

g = (FCFF Year 2 / FCFF Year 1) - 1

= (FCFF Year 1 × (1 + 0.14) × (1 - 0.02) / FCFF Year 1) - 1

= 0.12

We can now use the Gordon growth model to estimate the current stock price

Current stock price = FCFF Year 1 × (1 + g) / (r - g)

r = required rate of return.

Current stock price = $31.02 million × (1 + 0.12) / (0.13 - 0.12)

= $72.13 million

Finally, we divide the current stock price by the number of shares outstanding to get an estimate of the current stock price per share:

Current stock price per share = $72.13 million / 5.5 million

= $13.11 per share

Therefore, the estimate of the current stock price is $13.11 per share.

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The sample mean weight is 16.235 ounces, and the margin of error is 0.360 ounces.

The sample mean weight of grapes is the midpoint of the confidence interval, which is given by:

sample mean = (lower bound + upper bound) / 2

sample mean = (15.875 + 16.595) / 2

sample mean = 16.235

Therefore, the sample mean weight of grapes is 16.235 ounces.

The margin of error is half the width of the confidence interval, which is given by:

margin of error = (upper bound - lower bound) / 2

margin of error = (16.595 - 15.875) / 2

margin of error = 0.360

Therefore, the margin of error is 0.360 ounces.

The correct answer is: The sample mean weight is 16.235 ounces, and the margin of error is 0.360 ounces.

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The local maximum is at x = -9 with a value of 2575, and the local minimum is at x = 1 with a value of -17.

To find the local minimum and maximum of the given function, we need to find its critical points, where the derivative is zero or undefined.

[tex]f(x) = 2x^3 + 30x^2 - 54x + 5[/tex]

[tex]f'(x) = 6x^2 + 60x - 54[/tex]

Setting f'(x) = 0, we get:

[tex]6x^2 + 60x - 54 = 0[/tex]

[tex]x^2 + 10x - 9 = 0[/tex]

(x + 9)(x - 1) = 0

x = -9 or x = 1

Now, we need to determine if these critical points correspond to local minimum or maximum.

To do so, we can use the second derivative test. We calculate the second derivative of f(x):

f''(x) = 12x + 60

At x = -9:

f''(-9) = 12(-9) + 60 = -48 < 0

This means that f(x) has a local maximum at x = -9.

At x = 1:

f''(1) = 12(1) + 60 = 72 > 0

This means that f(x) has a local minimum at x = 1.

To find the values of the local minimum and maximum, we plug in the corresponding x-values into the original function:

[tex]f(-9) = 2(-9)^3 + 30(-9)^2 - 54(-9) + 5 = 2575[/tex]

[tex]f(1) = 2(1)^3 + 30(1)^2 - 54(1) + 5 = -17[/tex]

Therefore, the local maximum is at x = -9 with a value of 2575, and the local minimum is at x = 1 with a value of -17.

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The closest answer to the amount that the account is worth after 15 years is $2,812.19, Therefore Option 3 is correct

The formulation for calculating the future value (FV) of an investment with compound interest is:

[tex]FV = P * (1 + r/n)^{(n*t)}[/tex]

Wherein P is the primary (the initial amount invested), r is the once a year interest rate, n is the variety of times the interest is compounded per year, and t is the term in years.

In this case, P = $2,000, r = 2.5% = 0.0.5, n = 4 (for the reason that interest is compounded quarterly), and t = 15. Plugging those values into the formulation, we get:

[tex]FV = $2,000 * (1 + 0.1/2/4)^{(4*15)}[/tex]

FV ≈ $2,812.19

Therefore, the closest answer to the amount that the account is worth after 15 years is $2,812.19.

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The value of b in the parallel line is 93 degrees.

When parallel lines are crossed by a transversal line, angle relationships are formed such as alternate interior angles, alternate exterior angles, corresponding angles, same side interior angles, vertically opposite angles, adjacent angles etc.

Therefore, let's use the angle relationship to find the angle b as follows:

Alternate interior angles are the angles formed when a transversal intersects two parallel lines. Alternate interior angles are congruent.

Using the alternate interior angle theorem,

b = 180 - 65.5 - 21.5

b = 93 degrees.

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The coordinates of the point are (7,0).

distance from (-3,-5) to (x,y) = 2 * distance from (x,y) to (9,-8)

Using the distance formula, we can write this equation as:

√[(x - (-3))^2 + (y - (-5))^2] = 2 * √[(9 - x)^2 + (-8 - y)^2]

Simplifying this equation, we get:

[tex](x + 3)^2 + (y + 5)^2 = 4[(9 - x)^2 + (-8 - y)^2][/tex]

Expanding and simplifying further, we get:

[tex]17x + 16y = 119[/tex]

So the coordinates of the point on the directed line segment from (-3,-5) to (9,-8) that partitions the segment into a ratio of 2 to 1 are:

x = (119 - 16y)/17

y = any value (since we can choose any value of y and then calculate x using the equation above)

For example, if we choose y = 0, then we get:

x = (119 - 16(0))/17 = 7

So the coordinates of the point are (7,0).

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The contents of the box, by weight, consists of 14.29 percent caramels.

We need to find the percentage of caramels in the box, given the weights of caramels and coconut candies.

Step 1: Determine the total weight of the candies in the box.
The box contains 0.6 pounds of caramels and 3.6 pounds of coconut candies. Add these two weights together:

Total weight = 0.6 (caramels) + 3.6 (coconut)
Total weight = 4.2 pounds

Step 2: Calculate the percentage of caramels in the box.
To find the percentage, divide the weight of caramels by the total weight of the box and then multiply by 100:

Percentage of caramels = (Weight of caramels / Total weight) x 100
Percentage of caramels = (0.6 / 4.2) x 100

Step 3: Solve the equation.
Percentage of caramels = (0.6 / 4.2) x 100 ≈ 14.29%

So, approximately 14.29% of the contents of the box, by weight, consists of caramels.

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Answer:

The total area of the "i" figure is 5.33 square units.

The figure is made up of a square with side length 4 units, a triangle with base 4 units and height 3 units, and a semi-circle with radius 2 units.

The area of the square is 4^2 = 16 square units.

The area of the triangle is (1/2)(4)(3) = 6 square units.

The area of the semi-circle is (1/2)(pi)(2^2) = 2pi square units.

The total area of the figure is 16 + 6 + 2pi = 5.33 square units (to the nearest hundredth of a unit).

Here is a diagram of the figure with the areas of each shape labeled:

[Image of the "i" figure with the areas of each shape labeled]

The money multipliers are:

(a) 25.000

(b) 8.000

(c) 2.500

(d) 5.000

The money multiplier represents the amount of money the banking system can create through the lending process for every dollar of reserves held by the central bank. It is inversely related to the reserve requirement, which is the percentage of deposits that banks are required to hold as reserves.

When the reserve requirement is low, su

The money multiplier is given by the formula:

Money multiplier = 1 / Reserve requirement

(a) When the reserve requirement is 0.040, the money multiplier is:

Money multiplier = 1 / 0.040 = 25.000

(b) When the reserve requirement is 0.125, the money multiplier is:

Money multiplier = 1 / 0.125 = 8.000

(c) When the reserve requirement is 0.400, the money multiplier is:

Money multiplier = 1 / 0.400 = 2.500

(d) When the reserve requirement is 0.200, the money multiplier is:

Money multiplier = 1 / 0.200 = 5.000

Therefore, the money multipliers are:

(a) 25.000

(b) 8.000

(c) 2.500

(d) 5.000

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Answer:

pls mrk me brainliest (⁠´⁠(⁠ｪ⁠)⁠｀⁠）

The vocabulary for the segment a is the apothem

The area of the polygon is about 41.6 yd²

The area of a regular figure is the extent of the planer space the figure occupies.

The length of each side of the regular polygon, s = 4 yd

The length of the segment a = 2·√3

The vocabulary term for the segment a drawn from from the center of the polygon and perpendicular to one of its sides is the apothem

Therefore, the vocabulary term for segment a is the apothem

The polygon is a hexagon.

The area of a hexagon is; A = ((3·√3)/2) × s²

Therefore, the area of the polygon is; A = ((3·√3)/2) × (4)² = 24·√3 ≈ 41.6

The area of the polygon is about 41.6 yd²

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Using the identity: sin(A + B) = sin A cos B + cos A sin B, we can rewrite the expression as follows:

Sin 7A * Cos 3A = (sin 4A + sin 10A)/2 * (cos 2A + cos A)/2

Expanding this expression using the same identity, we get:

= (sin 4A * cos 2A + sin 4A * cos A + sin 10A * cos 2A + sin 10A * cos A)/4

Now, using the identity sin 2A = 2 sin A cos A, we can simplify further:

= (1/2) sin 2A * cos 2A + (1/2) sin 2A * cos 8A + (1/2) sin 6A * cos 2A + (1/2) sin 6A * cos 8A

Therefore, Sin 7A * Cos 3A can be written as:

(1/2) sin 2A * cos 2A + (1/2) sin 2A * cos 8A + (1/2) sin 6A * cos 2A + (1/2) sin 6A * cos 8A

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The volume of the gift bag is given as 1152 cubic inches.

Since it is shaped like a rectangular prism, we can write the formula for its volume as V = l × w × h, where l, w, and h are the length, width, and height of the rectangular prism, respectively.

To determine the dimensions of the gift bag, we need more information such as the ratio of its length, width, and height or any one of its dimensions. If we assume one of the dimensions, say, the length is L inches, then we can write the volume as V = L × w × h. Solving for w × h, we get w × h = V/L = 1152/L.

We can then use this equation along with the fact that the gift bag is a rectangular prism to find the other dimensions. For example, if the width is W inches, then we have h = 1152/(L × W) and the volume can be expressed as V = L × W × 1152/(L × W) = 1152.

Similarly, if the height is H inches, then we have w = 1152/(L × H) and the volume can be expressed as V = L × 1152/(L × H) × H = 1152.

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After 8 years, Devon's account balance will be approximately $4,551.24.

In this case, Devon's principal amount is $2,750, his annual interest rate is 6.5%, and the interest is compounded once per year. we can see that we made a mistake in our calculation of the final amount. The correct calculation is:

A = $2,750(1 + 0.065/1)¹ˣ⁸

A = $2,750(1.065)⁸

A = $2,750(1.614)

A = $4,434.49

Since the question provides answer choices that are rounded to the nearest cent, we can see that the closest answer choice to our calculated amount is $4,551.24 (answer choice 1).

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If each of the 3 friends orders a veggie mushroom cheddar burger for 11%, the cost of each burger would be:

11% of $1.00 = $0.11

Since the prices are listed in fractions of a dollar, we can express the cost of each burger as 11/100 of a dollar.

So, the total cost of 3 veggie mushroom cheddar burgers would be:

3 x 11/100 = 33/100 = $0.33

Assuming that the glass of water is free, the total bill before taxes would be $0.33 for the 3 burgers. However, it's important to note that this calculation is based on the assumption that the prices are listed in fractions of a dollar, which may not be the case. If the prices are listed in a different unit, the calculation would need to be adjusted accordingly.

The system of linear inequalities representing the fishing restrictions is a ≤ 15, y ≤ 10, a + y ≤ 20.

Let's define the variables as follows:

a = Number of surfperch caught per day.

y = Number of rockfish caught per day.

Based on the given information, we can write the following system of linear inequalities:

Surfperch inequality: a ≤ 15

This inequality represents the restriction that you cannot catch more than 15 surfperch per day.

Rockfish inequality: y ≤ 10

This inequality represents the restriction that you cannot catch more than 10 rockfish per day.

Bottomfish inequality: a + y ≤ 20

This inequality represents the overall restriction that the total number of bottom fish (which includes both surfperch and rockfish) cannot exceed 20 per day.

Therefore, the system of linear inequalities is:

a ≤ 15

y ≤ 10

a + y ≤ 20

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The art studio can offer a maximum of 8 painting classes and 5 pottery classes per week, while still meeting the time constraint and earning at least $1000 per week.

To find the maximum number of classes the art studio can offer per week, we need to set up an equation based on the time constraint.

Let's assume that the studio offers x painting classes and y pottery classes per week. Since each painting class is 1 hour long and each pottery class is 1.5 hours long, the total time spent on classes can be represented by the equation:

1x + 1.5y ≤ 40

This equation states that the total number of hours spent on painting classes (1x) plus the total number of hours spent on pottery classes (1.5y) must be less than or equal to 40 hours per week.

To find the minimum revenue the art studio can earn per week, we can set up another equation based on the cost of each class and the minimum revenue requirement.

Let's assume that each painting or pottery class costs $35. Then the total revenue earned per week can be represented by the equation:

35x + 35y ≥ 1000

This equation states that the total revenue earned from painting classes (35x) plus the total revenue earned from pottery classes (35y) must be greater than or equal to $1000 per week.

Now we have two equations:

1x + 1.5y ≤ 40

35x + 35y ≥ 1000

We can use these equations to find the maximum number of classes the art studio can offer per week.

To do this, we can graph the two equations on the same coordinate plane and find the point where they intersect.

When we do this, we get the point (x, y) = (8, 16/3).

This means that the art studio can offer a maximum of 8 painting classes and 16/3 (or approximately 5.33) pottery classes per week, while still meeting the time constraint and earning at least $1000 per week.

Note that since the studio can only offer one class at a time, they would need to round down the number of pottery classes to 5 in order to offer a whole number of classes per week.

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The reasoning behind this is that the initial amount (h(x)) is multiplied by the interest growth factor (s(x)) to calculate the total amount with interest over time.

To model the total amount of money Victoria will have in her bank account as interest accrues after depositing her $200, you can combine the two functions h(x) and s(x). The given functions are h(x) = 200 and s(x) = (1.05)^x−1.

First, note that s(x) represents the growth factor of the interest, which is 5% (1.05) compounded annually. To find the total amount after x years, you need to multiply the initial amount by the growth factor raised to the power of x.

So, the combined function T(x) can be written as T(x) = h(x) * s(x).

Substitute the given functions into the combined function:

T(x) = (200) * ((1.05)^x−1)

This function, T(x), models the total amount of money Victoria will have in her bank account after x years with interest accrued on her $200 deposit. The reasoning behind this is that the initial amount (h(x)) is multiplied by the interest growth factor (s(x)) to calculate the total amount with interest over time.

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To do this, we can use the Pythagorean theorem and trigonometric ratios instead.

1. Determine the coordinates of the given point, let's call it P(x, y), and the center of the circle, let's call it O(h, k). Also, note the radius, r.

2. Calculate the distance between point P and the center O using the Pythagorean theorem: d^2 = (x-h)^2 + (y-k)^2, where d is the distance.

3. Set d equal to the radius of the circle: r^2 = (x-h)^2 + (y-k)^2.

4. Now, let's find the angle θ between the x-axis and the line OP without using arctan. To do this, we'll use the sine and cosine ratios:

sin(θ) = (y-k) / r and cos(θ) = (x-h) / r

5. To eliminate the need for arctan, we can use the Pythagorean identity sin^2(θ) + cos^2(θ) = 1. Substitute the sine and cosine ratios we found earlier:

((y-k) / r)^2 + ((x-h) / r)^2 = 1

6. Simplify the equation by multiplying both sides by r^2:

(y-k)^2 + (x-h)^2 = r^2

You'll notice that this equation is the same as the one we found in step 3, confirming that the point P lies on the circle. You've now solved the point circle problem without using arctan, by employing the Pythagorean theorem and trigonometric ratios instead.

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The perimeter of an isosceles right triangle whose short sides have that length 0.75 units is 2.56 units.

Given that, an isosceles right triangle whose short sides have that length 0.75 units.

Let the longest side be x.

Here, x²=0.75²+0.75²

x²=1.125

x=√1.125

x=1.06 units

Now, the perimeter = 0.75+0.75+1.06

= 2.56 units

Therefore, the perimeter of an isosceles right triangle whose short sides have that length 0.75 units is 2.56 units.

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Answer:

1. x = 5

2. x = [tex]\sqrt 7 \approx[/tex] 2.65

Step-by-step explanation:

To solve these problems, we can use the diagram below, as well as Pythagoras's Theorem, which states:

[tex]\boxed{\mathrm{a^2 = b^2 + c^2}}[/tex],

where a is the hypotenuse (longest side) of a right-angled triangle, and b and c are the legs of the triangle.

1. x is the hypotenuse:

From the diagram below, we can see that, if x is the hypotenuse of the triangle, then 3 and four are the legs of the triangle. Therefore, using the above equation:

[tex]x^2 = 3^2 + 4^2[/tex]

⇒ [tex]x = \sqrt{3^2 + 4^2}[/tex]      [Taking the square root of both sides of the equation]

⇒ [tex]x = \sqrt{25}[/tex]

⇒ [tex]x = \bf 5[/tex]

2. x is one of the legs:

From the diagram below, we can see that when x is one of the legs, the hypotenuse is 4, and the other leg is 3.

The hypotenuse isn't 3 because the hypotenuse is the longest side in a right-angled triangle, and 4 is longer than 3.

Therefore,

[tex]4^2 = x^2 + 3^2[/tex]

⇒ [tex]x^2 = 4^2 - 3^2[/tex]             [Subtracting 3² from both sides]

⇒ [tex]x = \sqrt{4^2 - 3^2}[/tex]          [Taking the square root of both sides of the equation]

⇒ [tex]x = \sqrt{7}[/tex]

       [tex]\approx \bf 2.65[/tex]

The equation that could be used to calculate the average speed of each vehicle is C. 140x = 95x + 40, where x represents the average speed of the helicopter in miles per hour and 140x represents the distance traveled by the small private airplane.

The equation that can be used to calculate the average speed of each vehicle is:

C. 140x = 95x + 40

Let's break it down:

Since the time taken by both vehicles is the same, the distances covered by each vehicle can be equated, giving us the equation 140x = 95x + 40.

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The system of inequalities that models the situation is given as follows:

The perimeter of a polygon is given by the sum of all the lengths of the outer edges of the figure, that is, we must find the length of all the edges of the polygon, and then add these lengths to obtain the perimeter.

The perimeter of a rectangle of width w and length l is given as follows:

P = 2w + 2l.

You want the run to be at least 10 ft wide, hence:

w ≥ 10.

The run can be at most 50 ft long, hence:

0 < l ≤ 50.

(length has to be greater than zero).

You have 126 ft of fencing, hence the perimeter is represented as follows:

2w + 2l ≤ 126.

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The measure of ∠N to the nearest degree is 82°.

To find the measure of ∠N, we can use the Pythagorean theorem and trigonometric functions.

First, we can use the Pythagorean theorem to find the length of MN:

MN² = NO² - OM²

MN² = (6.7 feet)² - (1.7 feet)²

MN² = 44.56 feet²

MN = 6.67 feet

Now, we can use the sine function to find the measure of ∠N:

sin(N) = MN/NO

sin(N) = 6.67 feet / 6.7 feet

sin(N) ≈ 0.994

N ≈ sin⁻¹(0.994)

N ≈ 82.4°

The measure of ∠N to the nearest degree is 82°.

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Answer: 720

Step-by-step explanation: 1800 x 40%

Answer:

720 math books

Step-by-step explanation:

1800×40%= 720

there are 720 math books

The number of minutes you can use the card is 9 minutes

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

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

f(x) = 0.25x + 0.75

If the total cost of the card is $5.00, the number of minutes you is

0.25x + 0.75 = 5

So, we have

0.25x = 4.25

Divide by 0.25

x = 9

Hence, the number of minutes is 9

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