Helep plez.... :S
it gave a hint: convert all into base 3.
i tried it and still couldnt make that much progress

The amount of caster sugar used in the first attempt is given as follows:

340 g.

The amount of caster sugar used in the first attempt is obtained applying the proportions in the context of the problem.

The expressions for each attempt are given as follows:

The amount used on the third attempt was of 376.38 g, hence the amount used on the first attempt is obtained as follows:

1.107x = 376.38

x = 376.38/1.107

x = 340 g.

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By answering the presented question, we may conclude that As a result, the darkened zone has an area of 88 square units.

In Euclidean geometry, a rectangle is a parallelogram with four small angles. It may also be defined as a fundamental rule hexagon or one in which all of the angles are equal. Another alternative for the parallelogram is a straight angle. Four of the vertices of a square are the same length. A quadrilateral with four 90° angle vertices and equal parallel sides has a rectangle-shaped cross section. As a result, it is also known as a "equirectangular rectangle." A rectangle is sometimes referred to as a parallelogram due to the equal and parallel dimensions of its two sides.

We must determine the size of the darkened zone.

The bigger rectangle (with the frame) has a surface area of (12+2) x (10+2) = 14 x 12 = 168 square units.

The smaller rectangle (with the frame) has an area of (8+2) x (6+2) = 10 x 8 = 80 square units.

The frame's area is equal to the difference between the two areas: 168 - 80 = 88 square units.

As a result, the darkened zone has an area of 88 square units.

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Answer:

1. It flips the image over a line to create a mirror image

2. It spins a figure around a point

3. It slides a figure to a different location

4. it enlarges or reduces a figure

Step-by-step explanation:

The sum of the ages of the family seven years ago is given as follows:

45 years.

The sum of the ages of the family is obtained applying the proportions in the context of the problem.

Each year, the age of each person increases by one, hence, considering a family of five, the yearly increase in the age of the family is given as follows:

5 x 1 = 5 years.

The two youngest are 6 and 8, meaning that seven years ago, the youngest was not yet born.

The ages of a family of five sum to 80, hence the sum seven years ago was given as follows:

80 - 5 x 7 = 45 years.

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The correct answer is A. Multiplying the first equation by 2 will eliminate the variable y.

The elimination method is a common technique used to solve a system of linear equations. In this method, we manipulate the equations by adding or subtracting them to eliminate one of the variables, so that we can solve for the other variable.

To eliminate one of the variables, we need to choose one of the equations and multiply it by a constant that will make the coefficient of one of the variables in that equation equal to the coefficient of the same variable in the other equation, but with the opposite sign. Then, when we add the two equations together, the term with that variable will be eliminated.

Looking at the given equations, we can see that if we multiply the first equation by 2, we will get:

6x - 12y = 16

And if we add this equation to the second equation, we get:

6x - 12y + 2x + 3y = 16 - 1

Simplifying this, we get:

8x - 9y = 15

Now we have one equation with only x and y, and we can use this equation and either of the original equations to solve for x and y using the substitution method.

Therefore, the correct answer is A. Multiplying the first equation by 2 will eliminate the variable y.

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The given statement square root functions are not always increasing or always decreasing for the whole domain of ( -∞ , ∞) is false.

Function is square root function.

Domain = ( -∞ , ∞)

Square root functions is always increasing or decreasing is a false statement.

For example,

Let us consider the function f(x) = √x.

This function is increasing for x > 0, since as x increases, √x increases as well.

However, for x < 0, the function is not defined since the square root of a negative number is not a real number.

This implies,

The function is neither increasing nor decreasing for x < 0.

Therefore, the statement square root functions are either always increasing or always decreasing for the whole domain of ( -∞ , ∞)  is false.

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The above question is incomplete , the complete question is:

True or false? square root functions are either always increasing or always decreasing for the whole domain of ( -∞ , ∞).

Answer:

yes 10 to the 3rd power is 1,000 so try to go from there if more info is needed please comment "more info"

Step-by-step explanation:

The team jogged longer in the afternoon because they covered a distance of 6 eighths of a mile, which is greater than the 3 eighths of a mile they covered in the morning.

To compare the distance jogged in the morning and afternoon, we need to find the common unit for both. We can convert both fractions to have the same denominator by finding the least common multiple (LCM) of 8 and 4, which is 8.

So, in terms of eighths of a mile, the distance jogged in the morning is:

3/8 miles = 3 eighths of a mile

And the distance jogged in the afternoon is:

3/4 miles = 6 eighths of a mile (since 3/4 = 6/8)

Therefore, the team jogged longer in the afternoon because they covered a distance of 6 eighths of a mile, which is greater than the 3 eighths of a mile they covered in the morning.

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We have shοwn algebraically that the sοlutiοns tο the system οf equatiοns F(x) = g(x) are [tex](-2, -3)[/tex] and [tex](1, 0)[/tex].

A system οf equatiοns in algebra is made up οf twο οr mοre equatiοns that are sοlved tοgether. "A grοup οf equatiοns satisfied by the same set οf variables are called a system οf linear equatiοns. Finding the values οf the variables emplοyed in the system οf equatiοns is the first step tοwards sοlving it.

While maintaining the balance οf the equatiοns οn bοth sides, we cοmpute the values οf the unknοwn variables. Finding a variable whοse value makes the cοnditiοn οf all the given equatiοns true is the primary gοal οf sοlving an equatiοn system.

Tο prοve that these cοοrdinate pοints are sοlutiοns, we need tο substitute them intο bοth equatiοns and verify that they satisfy the equatiοns. Let's start with (-2, -3):

[tex]F(-2) = (-2)^2 + 2(-2) - 1 = 4 - 4 - 1 = -1[/tex]

[tex]g(-2) = (-2) - 1 = -3[/tex]

We can see that [tex]F(-2) = g(-2)[/tex] , sο[tex](-2, -3)[/tex]is a sοlutiοn.

Nοw let's check (1, 0):

[tex]F(1) = 1^2 + 2(1) - 1 = 2[/tex]

[tex]g(1) = 1 - 1 = 0[/tex]

Again, we can see that F(1) = g(1), sο (1, 0) is alsο a sοlutiοn.

Therefοre, we have shοwn algebraically that the sοlutiοns tο the system οf equatiοns F(x) = g(x) are (-2, -3) and (1, 0).

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So the measures of the angles in the isosceles obtuse triangle are 20 degrees, 80 degrees, and 80 degrees.

What is triangle ?

Three straight ends and three angles make up a closed triangle, a two-dimensional geometric object. A triangle's angles add up to 180 degrees in all cases. Based on their side lengths and angle measurements, triangles can be categorized in a variety of ways. Typical categorizations comprise: Triangle having no equal sides is referred to as a scalene triangle. Isosceles triangle: A triangle with two sides of equal length. A triangle having an equilateral shape is one with three equal sides. Triangle that has all angles that are less than 90 degrees is referred to as an acute triangle. Triangle with one angle that is precisely 90 degrees is referred to as a right triangle. A triangle that has a side that is more acute than 90 degrees is said to be obtuse.

given

In the isosceles obtuse triangle, let x represent the measurements of each equal angle.

One of the equal angles is bigger than 90 degrees since the triangle is obtuse. As a result, we have:

x + x + 20 = 180 (sum of angles of a triangle) (sum of angles in a triangle)

When we simplify this equation, we obtain:

2x + 20 = 180

2x = 160

x = 80

Hence, each of the equal angles is 80 degrees in length. As a result, there are three different ways to measure the angles in the isosceles obtuse triangle, which has one angle that is 20 degrees, as follows:

20-80-80 degree range

80-20-80 degree range

80-80-20 Celsius

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Answer:

[tex]\boxed{-\frac{1}{8} }[/tex]

Step-by-step explanation:

De acuerdo al inverso multiplicativo se cumple lo siguiente:

[tex]a\times \frac{1}{a}= \frac{a}{a}=1[/tex]

Por lo tanto:

[tex]-8 \times \frac{1}{-8}=1[/tex]

El número que cumple con el enunciado es [tex]-\frac{1}{8}[/tex]

[tex]\text{-B$\mathfrak{randon}$VN}[/tex]

Answer:

Step-by-step explanation:

You can start by drawing a diagram.  Then, you need to pick the shorter side and designate it as "x".  The longer side must be "x+8".

The formula for area of a rectangle is A=l*w.  Since the area is 84, then you can use the A=l*w formula.  84 = x(x+8) would be the equation to solve for x.

Now, you need to put the equation in standard form.  So, x2 + 8x - 84 = 0.

Since you can't solve this quadratic using factoring, you need to complete the square.

To complete the square you need to add 84 to both sides.  Now you have x2 + 8x = 84.  Take the coefficient for the x term (8) and divide by 2.  Now square it.  That would be 42, so 16.  Now you have x2 +8x +16 = 100.

Factor x2 +8x +16, so (x+4)2 = 100

If you use the square root property, you have x+4 = 10.  Therefore, x = 6 (the short side) and 14 is the long side.

I hope that helps.

Answer:

a) Account 2 will pay Lewis more interest after 15 years because it pays compound interest, which means that the interest is calculated on both the initial deposit and the accumulated interest from previous years. On the other hand, Account 1 pays simple interest, which means that the interest is calculated only on the initial deposit.

b) To calculate the amount of interest paid by each account, we can use the following formulas:

For Account 1: I = P × r × t, where I is the interest earned, P is the principal (initial deposit), r is the annual interest rate as a decimal, and t is the time in years.

I = 3100 × 0.07 × 15 = £3255

For Account 2: A = P × (1 + r/n)^(n × t), where A is the amount of money at the end of the investment period, P is the principal, r is the annual interest rate as a decimal, n is the number of times the interest is compounded per year, and t is the time in years.

In this case, n = 1 (compounded annually), so the formula simplifies to:

A = 3100 × (1 + 0.05)^15 = £5569.62

The interest earned by Account 2 is the difference between the final amount and the initial deposit:

I = A - P = £5569.62 - £3100 = £2469.62

Therefore, Account 2 will pay £2469.62 - £3255 = -£785.38 less in interest than Account 1 after 15 years.

Step-by-step explanation:

you need to work back wards on the

9x+3=64

so 64-3=61

then do 61 divided by 9  

which equals 6.7(1dp)

so x=6.7(1dp)

Answer: 1.061

Step-by-step explanation:

1). Based on conditions, formulate: 1+6.1%

2). Then convert to a decimal: 1.061

Answer:

80.925

Step-by-step explanation:

124.5 x 0.35 = 43.575

124.5 - 43.575 = 80.925

The range of the normal curve representing 95% of the scores fall is equal to 40.2 to 59.8.

The range within which 95% of the scores fall,

Calculate the z-scores corresponding to the 2.5th and 97.5th percentiles of the normal distribution.

The z-score corresponding to the 2.5th percentile is -1.96.

And the z-score corresponding to the 97.5th percentile is +1.96.

Using the formula for the z-score, we can calculate the corresponding raw scores as,

Lower bound is equal to,

z = (X - μ) / σ

⇒-1.96 = (X - 50) / 5

⇒X = 40.2

Upper bound is equal to,

z = (X - μ) / σ

⇒ +1.96 = (X - 50) / 5

⇒ X = 59.8

Therefore, 95% of the scores fall within the range of 40.2 to 59.8.

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The coordinates of the point where the food bag is hung are (2.5, 7, 6.5).

The center of the coordinate system (where the lines intersect) is called the origin. The axes intersect when both x and y are zero. The coordinates of the origin are (0, 0). An ordered pair contains the coordinates of one point in the coordinate system.

The coordinates of the point on the first tree where the rope is attached are (10, 6, 8), and the coordinates of the point on the second tree where the rope is attached are (-5, 8, 5).

To find the distance between the points, we can use the distance formula:

distance = √((x2 - x1)² + (y2 - y1)² + (z2 - z1)²)

Plugging in the coordinates from part 1, we get:

distance = √((-5 - 10)² + (8 - 6)² + (5 - 8)²)

distance = √(225 + 4 + 9)

distance = √(238)

Therefore, the distance between the points is √(238).

Since the food bag is hung at a point exactly halfway along the length of the rope, we can find its coordinates by taking the average of the coordinates of the points where the rope is attached.

The x-coordinate of the midpoint is: (10 + (-5)) / 2 = 2.5

The y-coordinate of the midpoint is: (6 + 8) / 2 = 7

The z-coordinate of the midpoint is: (8 + 5) / 2 = 6.5

Therefore, the coordinates of the point where the food bag is hung are (2.5, 7, 6.5).

To determine whether the food is safe from bears, we need to compare the height of the food bag to the maximum height that bears can reach. The food bag is hung at a height of 6.5 feet, and bears can reach a height of 7.5 feet when standing. Therefore, the food is not completely safe from bears, as they may be able to reach it if they stand up on their hind legs. However, hanging the food bag at this height does make it more difficult for the bears to reach, and may deter them from trying to get to it. It is also important to note that proper food storage techniques in bear country should involve using bear-resistant containers, in addition to hanging food bags.

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The cost of materials for the cheapest container is 69.6 dollars.

Let's first express the dimensions of the rectangular container in terms of a single variable. Let the width of the base be x meters, then the length of the base is 2x meters, and the height of the container is 10/(2x^2) = 5/x^2 meters, since the volume of the container is 10 cubic meters.

The area of the base is x * 2x = 2x^2 square meters, so the cost of the base is 10 * 2x^2 = 20x^2 dollars.

The area of each side of the container is (2x)(5/x^2) = 10/x square meters, so the cost of the four sides is 4 * (10/x) * 6 = 240/x dollars.

The total cost C of the materials is the sum of the cost of the base and the cost of the sides:

C = 20x^2 + 240/x

To find the value of x that minimizes this expression, we can take its derivative with respect to x and set it equal to zero:

dC/dx = 40x - 240/x^2 = 0

Solving for x, we get:

x^3 = 6

x = (6)^(1/3)

Substituting this value of x back into the expression for C, we get:

C = 20(6)^(2/3) + 240/(6)^(1/3) ≈ 69.6 dollars

Therefore, the cost of materials for the cheapest rectangular container is approximately 69.6 dollars.

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The value of x is 8. So correct is C.

In mathematics, a triangle is a geometric shape that consists of three line segments that intersect at three endpoints. These endpoints are called vertices, and the line segments are called sides.

Triangles are one of the most basic shapes in geometry and are used in many areas of mathematics, science, engineering, and everyday life. They can be classified based on the length of their sides and the measure of their angles.

Some common types of triangles include:

Equilateral triangle: A triangle in which all three sides are equal in length.

Isosceles triangle: A triangle in which two sides are equal in length.

Scalene triangle: A triangle in which all three sides have different lengths.

Right triangle: A triangle in which one angle measures 90 degrees (a right angle).

To find the value of x, we can use the trigonometric ratios of a right-angled triangle. Let's call the base of the triangle "b".

We know that the angle between the hypotenuse and the base is 45 degrees, which means that the other acute angle is also 45 degrees. Therefore, we can use the trigonometric ratio for the sine of 45 degrees to relate the hypotenuse and the perpendicular as follows:

sin(45 degrees) = opposite/hypotenuse

where the opposite side is the perpendicular, which is given as 4√2.

sin(45 degrees) = 4√2/x

Simplifying this equation gives:

x = 4√2 / sin(45 degrees)

We know that sin(45 degrees) = 1/√2, so substituting this value into the equation above gives:

x = 4√2 / (1/√2) = 4√2 * √2 = 8

Therefore, the value of x is 8.

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Required value of N is 1

This is a problem of simplification which is major part of Algebra.

Some Algebra's formulas:

[tex]{(x + y)}^{2} = {x}^{2} + 2xy + {y}^{2} \\ {(x - y)}^{2} = {x}^{2} - 2xy + {y}^{2} \\ {(x + y)}^{3} = {x}^{3} + 3 {x}^{2} y + 3x {y}^{2} + {y}^{3} \\ {(x - y)}^{3} = {x}^{3} - 3 {x}^{2} y + 3x {y}^{2} - {y}^{3} \\ {x}^{3} + {y}^{3} = {(x + y)}^{3} - 3xy(x + y) \\ {x}^{3} - {y}^{3} = {(x - y)}^{3} + 3xy(x - y) \\ {x}^{2} - {y}^{2} = (x + y)(x - y) \\ {x}^{2} + {y}^{2} = {(x - y)}^{2} + 2xy \\ {x}^{2} - {y}^{2} = {(x + y)}^{2} - 2xy \\ {x}^{3} - {y}^{3} = (x - y)( {x}^{2} + xy + {y}^{2} ) \\ {x}^{3} + {y}^{3} = (x + y)( {x}^{2} - xy + {y}^{2} )[/tex]

Given equation is [tex] - 3(8 \times N) = - 24[/tex]

We want to Simplify both side.

Multiplying (-3) and (8×N),

-24N = -24

Now we are dividing (-24) by (-24),

N = -24/-24

N = 1

Therefore, required value of N is 1.

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The coordinates of the vertex A' are (-2, -2).

What is triangle?

A triangle is a three-sided polygon with three angles. It is a fundamental geometric shape and is often used in geometry and trigonometry.

To reflect a point or a shape across a line, you can follow these steps:

Find the equation of the line of reflection.

Find the distance between each point and the line of reflection.

Reflect each point across the line of reflection by moving the same distance on the other side of the line.

Finding the equation of the line of reflection:

The line of reflection is y = -2, which is a horizontal line passing through y = -2.

Finding the distance between each point and the line of reflection:

We can use the formula for the distance between a point (x, y) and a line Ax + By + C = 0:

distance = |Ax + By + C| / sqrt(A^2 + B^2)

Plugging in the values, we get:

distance(A, y = -2) = |(-2) - (-2) + 2| / sqrt(0 + 1) = 2

distance(B, y = -2) = |(-2) - (-2) + 4| / sqrt(0 + 1) = 4

distance(C, y = -2) = |(-5) - (-2) + 2| / sqrt(1 + 0) = 5 / sqrt(1) = 5

So the distances between A, B, C and the line of reflection are 2, 4, and 5, respectively.

Reflecting each point across the line of reflection:

To reflect a point across a line, we move the same distance on the other side of the line. Since the line of reflection is horizontal, we only need to move vertically.

A is 2 units above the line of reflection, so we move it 2 units below the line:

A' = (-2, -2)

B is 4 units above the line of reflection, so we move it 4 units below the line:

B' = (-2, -4)

C is 5 units above the line of reflection, so we move it 5 units below the line:

C' = (-5, -7)

Therefore, the coordinates of the vertex A' are (-2, -2).

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The median provides Farrah with an understanding of the central value in her data set, which can help her analyze the overall distribution of the data points.

The median is a measure of central tendency that tells Farrah the middle value of her data when it is arranged in ascending order.

To find the median, Farrah should follow these steps:
1. Arrange her data in ascending order (from smallest to largest).
2. If there is an odd number of data points, the median is the middle value.
3. If there is an even number of data points, the median is the average of the two middle values.

It is less affected by outliers or extreme values than the mean, making it a more reliable representation of the center of her data.

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[tex]\begin{array}{llll} f(x)~from\\\\ x_1 ~~ to ~~ x_2 \end{array}~\hfill slope = m \implies \cfrac{ \stackrel{rise}{f(x_2) - f(x_1)}}{ \underset{run}{x_2 - x_1}}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array} \\\\[-0.35em] ~\dotfill\\\\ \begin{cases} t_1=0.5\\ t_2=0.75 \end{cases}\implies \cfrac{f(0.75)-f(0.5)}{0.75 - 0.5}\implies \cfrac{7.744-6.275}{0.75-0.5} \\\\\\ \cfrac{1.469}{0.25}\implies 5.876~\frac{meters}{second}[/tex]

Answer:

6

Step-by-step explanation:

the number of zeroes is defined by the highest exponent of the variable in the functional expression.

You roll a number cube two times. The theoretical probabilities are accurate is P(even number then odd number)= 1/4

Probability:

Probability is the likelihood of something happening. When we are unsure of the outcome of an event, we can talk about the likelihood of certain outcomes - how likely are they to occur. The analysis of events governed by probability is called statistics.

According to the Question:

Let P(E), P(H), and P(E and H) be the probabilities of rolling an even number on a die, heads on a coin, and heads, respectively.

We know,

P(E and H) = P(E)×P(H)

Now, to find P(E and H), we have to find P(E) and P(H).

Total number of possible results of a die roll = 6

Favorable results of an event E = {2, 4, 6}

∴ Number of favorable results of an event E = 3

Therefore,

P(E) = number of favorable results of an event event E / possible results The total number of

⇒ P(E)=3/6=1/2

There are two possibilities for tossing a coin = {H, T}

∴ Probability of heads on a flip coin = P(H)= 1/2

Finally, the probability that

Lewis gets an even number and flips heads =

1/2×1/2 = 1/4

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The point estimate is 0.395 and the poll's margin of error is 0.015 or 1.5%.

A set of values that, with a particular level of confidence, is likely to include an unknown population parameter is known as a confidence interval. Confidence intervals are frequently utilized in statistics to calculate the actual value of a population parameter using sample statistics. When comparing a sample statistic to a population parameter that is hypothesised, we utilize confidence intervals to assess if the difference is statistically significant.

Given the interval of the result in the survey is [0.38, 0.41].

a. The point estimate is given as:

Point estimate = (0.38 + 0.41) / 2 = 0.395

b. The margin of error is given as:

Margin of error = (critical value) x (standard error)

Assuming a 95% confidence level:

Standard error = (maximum error) / (critical value)

Now,

Maximum error = (0.41 - 0.38) / 2 = 0.015

Margin of error = 1.96 x (0.015 / 1.96) = 0.015

Hence, the point estimate is 0.395 and the poll's margin of error is 0.015 or 1.5%.

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Answer:

x = - 8

Step-by-step explanation:

(3x - 1)(x + 1) - 3x(x + 1) = 7 ← factor out (x + 1) from each term

(x + 1)(3x - 1 - 3x) = 7

(x + 1)(- 1) = 7 ( multiply both sides by - 1 )

x + 1 = - 7 ( subtract 1 from both sides )

x = - 8

Answer:

Step-by-step explanation:

[tex]\bf (3x -1 ) (x+1)- 3x(x+1)=7[/tex]

Expand:-

[tex]\bf 3x^2+2x-1-3x\left(x+1\right)[/tex]

[tex]\bf 3x^2+2x-1-3x^2-3x[/tex]

Combine like terms:-

[tex]\bf (3x^2-3x^2)+(2x-3x)-1[/tex]

[tex]\bf -x-1=7[/tex]

Add 1 to both sides:-

[tex]\bf -x-1+1=7+1[/tex]

[tex]\bf -x=8[/tex]

Divide both sides by -1:-

[tex]\bf \cfrac{-x}{-1}=\cfrac{8}{-1}[/tex]

[tex]\bf x=-8[/tex]

_________________________

Hope this helps!

Answer:

sin Θ = [tex]-\frac{3}{5}[/tex]

tan Θ = [tex]-\frac{3}{4}[/tex]

csc Θ = [tex]-\frac{5}{3}[/tex]

cot Θ = [tex]-\frac{4}{3}[/tex]

Step-by-step explanation:

We know that this triangle is a 3-4-5 triangle since we know the cos of the angle. We also know this angle is located in Quadrant IV (4) since cos is positive and tan is negative.

Based off this info we can find the rest of the trig functions

sin Θ = [tex]-\frac{y}{r}[/tex]

tan Θ = [tex]-\frac{y}{x}[/tex]

csc Θ = [tex]-\frac{r}{y}[/tex]

cot Θ = [tex]-\frac{x}{y}[/tex]

The rectangular prism's length, width, and height can also be labelled, and the surface area (SA) can be calculated using the formula:

SA = 2lw+2lh+2hw.

A face is just a flat surface in the geometric sense, and edges are formed where surfaces meet. Pyramids and prisms are both examples of polyhedra. A pyramid, however, is not a prism.

Method to find surface area:

Thus, the rectangular prism's length, width, and height can also be labelled, and the surface area (SA) can be calculated using the formula:

SA = 2lw+2lh+2hw.

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Surface Area = (width×length  +  height×length  +  height×width) × 2

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Please remember to revise this and make it in your own words if you want! I tried making this as simple as possible! I hope this helps you. -Doodle

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