pleasee help will give brainliest

The dimensions of the screen are:

length = L = 12 inches

width = W = (13L - 182) / 3 = (13*12 - 182) / 3 = 2 inches

a. The area of the browser window is given by:

area = length * width

24 = x(x-2)

Simplifying and solving for x, we get:

\(x^2\) - 2x - 24 = 0

(x - 6)(x + 4) = 0

Since the length cannot be negative, we take x = 6. Therefore, the length of the browser window is x = 6 inches.

b. Let L and W be the length and width of the computer screen, respectively. We are given that:

length of browser = x inches = L - 7 inches

width of browser = x - 2 inches

The area of the browser is:

area of browser = x(x-2) = (L-7)(L-9)

We are also given that the browser covers 3/13 of the screen, so:

area of browser = (3/13) * area of screen

x(x-2) = (3/13) * L * W

Substituting x = L - 7 and simplifying, we get:

(L-7)(L-9) = (3/13) * L * W

Expanding and simplifying, we get:

13L\(^2\) - 182L + 546 = 3LW

Since L and W are positive, we can divide both sides by 3L to get:

W = (13L - 182) / 3

We also know that the browser covers 3/13 of the screen, so:

area of browser = (3/13) * area of screen

x(x-2) = (3/13) * L * W

6(4) = (3/13) * L * ((13L-182)/3)

24 = (L/3) * (13L-182)

8 = L(13L-182)/3

24 = L(13L-182)

13L^2 - 182L - 24 = 0

(L - 12)(13L + 2) = 0

Since the length cannot be negative, we take L = 12. Therefore, the dimensions of the screen are:

length = L = 12 inches

width = W = (13L - 182) / 3 = (13*12 - 182) / 3 = 2 inches

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Answer:

distributive property of multiplication over addition

Step-by-step explanation:

Using Simple Speed formula,

To travel the distance of 75m with an airplane will need five gallons of fuel .

We have given that,

An airplane, fuel burn speed = 3 gallons of fuel per hour

ground speed of airplane = 45mph

distance = 75m

Speed = distance /time = 45 mph

=> 45 m distnce in one hour

fuel consumption of airplane = 3gallons/h

from above discussion we get,

fuel consumption for 45 m is equal to 3 gallons .

we have to calculate the quantity of fuel need to travel 75 m .

Now, 45 m distnce implies 3 gallons fuel consumption

1 m distance implies 3/45 gallons of fuel consumption

fuel consumption for 75 m =( 3/45)×75 = 5 gallons

Hence, 5 gallons fuel we need to travel 75 m .

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The constant of proportionality of the proportional relationship is:

k = 6.

The proportionality constant k is described as k=y/x when y and x are two numbers that are proportionate to one another directly. Finding the equation y=kx, which represents the directly proportional relationship between x and y, with your particular k is possible once you know the proportionality constant.

Now in the given graph,

consider a point on the proportional graph, (5, 30):

x = 5

y = 30

Therefore , constant of probability:

k = y/x

k = 30 / 5

k = 6

Therefore, the constant of proportionality of the proportional relationship is: k = 6

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Mari adds a total of 20 mL of honey to the pitcher of iced tea. Each spoonful of honey holds 5 mL, and Mari adds 4 spoonfuls.

Since each spoonful of honey holds 5 mL, Mari adds 4 spoonfuls. To calculate the total amount of honey added, we can multiply the volume of honey in each spoonful (5 mL) by the number of spoonfuls (4):

Total amount of honey = 5 mL/spoonful × 4 spoonfuls = 20 mL

Therefore, Mari adds a total of 20 mL of honey to the pitcher of iced tea.

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Answer:

\(4x^{6} - 24x^{4} + 36x^{2}\)

Step-by-step explanation:

tan 36° can be written as cot 54°, which simplifies to (√3 + 1) / (√3 - 1).

The tangent of 36° can be expressed in terms of its cofunction, which is the cotangent. The cotangent of an angle is equal to the reciprocal of the tangent of that angle. Therefore, we can rewrite tan 36° as cot (90° - 36°).

Now, cot (90° - 36°) can be simplified further. The angle 90° - 36° is equal to 54°. So, we have cot 54°.

The cotangent of 54° can be determined using the unit circle or trigonometric identities. In this case, the exact answer for cot 54° is (√3 + 1) / (√3 - 1).

Hence, tan 36° can be written as cot 54°, which simplifies to (√3 + 1) / (√3 - 1).

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The true statement about the coordinates of the image:

Only the x-values change.

The correct option is D.

A reflection is a type of transformation that involves flipping a shape, known as the preimage, over a line, known as the line of reflection, to produce a new shape (called the image). You can picture what would happen if you flipped the form over the line in order to graph a reflection.

Given:

A quadrilateral is reflected over the y-axis.

The reflection rule:

Over the y-axis,

(x, y) → (-x, y)

Therefore, reflected coordinates: only the x-values change.

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The gray squirrel population t years after introduction is P(t) = \(340 x 2^(t/9).\)

The formula for the gray squirrel population, p, t years after the introduction of the population is \(P(t) = P0 x 2^(t/9)\), where P0 is the initial population. We can use this formula to answer both (a) and (b). For (a), we can substitute t = 0 and P(t) = 680, to solve for P0. This gives us that the initial population of gray squirrels was 340. For (b), we can substitute t = 27 (the number of years since introduction) and P(t) = 680, to solve for P(27). This gives us that the expected population of gray squirrels t years after introduction is 1360. Therefore, the formula for the gray squirrel population t years after introduction is \(P(t) = 340 x 2^(t/9)\).

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Answer:

16 cm squared

Step-by-step explanation:

8cm x 2cm would equal 16 cm squared

my day was okay. Had school, played some games, did hw, normal stuff. :D

Anywho im going to do my tutor hw and maybe help some other people. Bye!

Answer:

14 cm^2

Step-by-step explanation:

First of all we have to find the total area

total area = lenght x width = 8 x 2 = 16 cm^2

the shaded area is a right triangle

the area of a right triangle is

A = (leg 1 x leg2)/2 = (2 x 2)/2 = 2 cm^2

now we have to subtract it from the total area

16-2 = 14 cm^2

Answer:

\(d=2\) and \(d=3\)

Step-by-step explanation:

\(d^2-5d+6=0\)

\((d-2)(d-3)=0\)

\(d=2\) and \(d=3\)

Answer:

Step-by-step explanation:

The answer for the given two figure is mBEC is 32° and mPR is 120°

A line that touches a circle only once is said to be tangent to it. A point to circle can only have one tangent. The intersection of the tangent and the circle is known as the point of tangency. Let's now demonstrate that the circle's tangent and radius are perpendicular to one another at their point of contact.

The line segment connecting any two locations on a circle's circumference is referred to as the chord of the circle. It should be remembered that the diameter is the circle's longest chord that runs through its centre.

according to question,

In fig1 mBEC = mAEB - mDEC/2

        mBEC = 94° - 30°/2

        mBEC = 32°

In fig2 mPR = 180° - mPQR

                 = 180° - 60°

                 = 120°

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Answer:

19

Step-by-step explanation:

Answer:19

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The expression equivalent to 2x² - 18 will be 2 ( x + 3 )( x - 3 ). The correct option is D.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Simplify the quadratic expression:-

E = 2x² - 18

E = 2 ( x² - 18 )

E = 2 ( x² - 9²)

Apply the formula a² - b² = ( a + b ) ( a - b ).

E = 2 ( x + 3 ) ( x - 3 )

Therefore, the expression equivalent to 2x² - 18 will be 2 ( x + 3 )( x - 3 ). The correct option is D.

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The mean difference (low - full) is 5.875 and the standard deviation of the differences is approximately 0.980.

To calculate the mean difference (low - full) and the standard deviation of the differences, we can follow these steps:

Calculate the differences for each pair of data points (low power - full power).

phone full power low power difference

1 8.25 14 5.75

2 8 15.5 7.5

3 8.5 13.5 5

4 8.5 14.25 5.75

5 8.25 15.25 7

6 9 13.75 4.75

7 8.5 14.5 6

8 8.25 15 6.75

Calculate the mean of the differences:

mean difference = (5.75 + 7.5 + 5 + 5.75 + 7 + 4.75 + 6 + 6.75) / 8

= 5.875

Calculate the standard deviation of the differences:

First, calculate the squared difference for each pair:

(5.75 - 5.875)² = 0.013

(7.5 - 5.875)² = 2.685

(5 - 5.875)² = 0.756

(5.75 - 5.875)² = 0.013

(7 - 5.875)² = 1.346

(4.75 - 5.875)² = 1.242

(6 - 5.875)² = 0.016

(6.75 - 5.875)² = 0.764

Next, calculate the mean of the squared differences:

mean squared difference = (0.013 + 2.685 + 0.756 + 0.013 + 1.346 + 1.242 + 0.016 + 0.764) / 8

= 0.961

Finally, take the square root of the mean squared difference to find the standard deviation of the differences:

standard deviation = √0.961

= 0.980

Therefore, the mean difference (low - full) is 5.875 and the standard deviation of the differences is approximately 0.980.

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Answer:

I'm pretty sure the answer is -a²b and 5a²b

Step-by-step explanation:

Answer:

Step-by-step explanation:

take 69 degree as reference angle

using sin rule

sin 69=opposite/hypotenuse

0.93=7.2/x

x=7.2/0.93

x=7.74

x=7.7

the volume of the pyramid is approximately 593,866.67 cubic meters.

To find the volume of the pyramid, we first need to use the formula for the volume of a pyramid, which is:

\(V = \frac{1}{3} * base area * height\)

Since the pyramid has a square base, the base area can be found by multiplying the length of one side by itself:

base area = 140 m * 140 m = 19,600 m²

Now we can plug in the values for the base area and height into the formula:

V = (1/3) * 19,600 m^2 * 91 m

V = 1/3 * 1,781,600 m³

V = 593,866.67 m³

Therefore, the volume of the pyramid is approximately 593,866.67 cubic meters

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The volume of the pyramid is approximately 594,533.33 cubic meters.

To find the volume of a stone pyramid in Egypt with a square base that measures 140 meters on each side and a height

of 91 meters, you'll need to use the formula for the volume of a pyramid:

Volume = (1/3) × Base Area × Height

Calculate the base area by squaring the side length:

Base Area = Side × Side = 140 m × 140 m = 19,600 m²

Multiply the base area by the height:

Base Area × Height = 19,600 m² × 91 m = 1,783,600 m³

Multiply the result by (1/3) to get the volume:

Volume = (1/3) × 1,783,600 m³ = 594,533.33 m³ (rounded to two decimal places)

So, the volume of the pyramid is approximately 594,533.33 cubic meters.

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The number of ways are there of choosing ten balls from the box if the number of green balls must be in even numbers =15946 ways

To determine the number of ways of choosing ten balls from the box such that the number of green balls chosen is even, we need to consider the different possible combinations of green balls that could be chosen.

First, we can select 0 green balls, in which case we would need to choose all 10 balls from the 5 red and 8 yellow balls. This can be done in (5+8) choose 10 ways, which is 13 choose 10, or 286 ways.

Alternatively, we could choose 2, 4, or 6 green balls, and then select the remaining balls from the red and yellow balls. To count the number of ways of doing this, we can use the binomial coefficient formula.

The total number of ways of selecting 10 balls from the box is (6+5+8) choose 10, which is 19 choose 10, or 92,378 ways.

Therefore, the number of ways of choosing 10 balls from the box such that the number of green balls chosen is even is the sum of the number of ways of choosing 0, 2, 4, or 6 green balls, which is:

(6 choose 0)(13 choose 10) + (6 choose 2)(5 choose 8)(8 choose 0) + (6 choose 4)(5 choose 6)(8 choose 0) + (6 choose 6)(5 choose 4)*(8 choose 0)

Simplifying this expression gives a total of 15,946 ways.

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Answer:

y < (3/2) |x - 3| +2

Step-by-step explanation:

Answer:

22 people were born in the uk  (66 ÷ 360) × 120=22

Step-by-step explanation:

Using the pie chart, the fraction of people born in the UK, is: 7/30.

A pie chart is a graphical representation used to describe the composition of a data using degrees or percentages.

84° is given as the number of people that were born in the UK.

That's about: 84/360 × 120 = 28 people.

28 out of 120 people would give us a fraction of: 28/120 = 7/30.

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Answer:

A. △GHD ≅ △EDH by SAS

Step-by-step explanation:

This is right on edge. 2020

In triangles GHD and EDH angle GHD and angle EDH is congruent, side GH is congruent to the side ED, and side HD is congruent to side HD. So, from side angle side postulate triangle GHD and triangle EDH are congruent.

Given :

In the Side Angle Side postulate, the two sides and the included angle of one triangle are congruent to the two sides and the included angle of another triangle.

Given that in triangles GHD and EDH angle GHD and angle EDH is congruent, side GH is congruent to the side ED, and side HD is congruent to side HD.

So, from side angle side postulate triangle GHD and triangle EDH are congruent. Therefore, the correct option is A).

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Answer:

The answer is 9.5 Yards

Answer:

9.5

Step-by-step explanation:

one foot is equal to 0.33 yards

divide 28.5 by 3

Answer:

(4,-1) is the answer

Step-by-step explanation:

The value of (x,y) is (1,4)

Rotation through 270° anticlockwise direction;

when point P is rotated than

P(x,y) ----------> P' ( y,-x)

A (1,4)----------> A' (4,-1)

Answer:

the answer is y=2x+3 hope this helps

The charge distribution is given by a constant charge density ρ = ε₀K(2x, 2x, 0).

To determine the charge distribution given the electric field E(r) = ε₀K(x² + y² + a², x² + y² + a², 0), we can apply Gauss's law and the relationship between electric field and charge density.

Gauss's law states that the divergence of the electric field (∇ · E) is equal to the charge density (ρ) divided by the permittivity of free space (ε₀).

In this case, since the electric field E(r) is given, we can calculate the divergence ∇ · E by taking the partial derivatives of each component of E with respect to their corresponding variables:

∂Eₓ/∂x = ε₀K(2x, 2x, 0)

∂Eᵧ/∂y = ε₀K(2y, 2y, 0)

∂Ez/∂z = 0

Now, equating each component of the divergence to the charge density ρ:

∂Eₓ/∂x = ε₀K(2x, 2x, 0) = ρ

∂Eᵧ/∂y = ε₀K(2y, 2y, 0) = ρ

∂Ez/∂z = 0

From these equations, we can see that the charge density ρ is constant and equal to ε₀K(2x, 2x, 0) or ε₀K(2y, 2y, 0) in each direction.

Therefore, the charge distribution is given by a constant charge density ρ = ε₀K(2x, 2x, 0) or ρ = ε₀K(2y, 2y, 0) depending on the direction.

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Answer:

The common difference of the sequence 5,8,11,14 is 3.

Answer:

the answer is 3

Step-by-step explanation:

5 + 3 = 8

8 + 3 = 11

11 + 3 = 14, therefore the common difference of the arithmetic sequence is three.