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A store sells a shirt that is discounted by 10%. A coupon is used for an additional 10% off the
discounted price.
What is the total percentage discount on the shirt?

Trigonometry is the application of certain functions to determine the value of a quantity. The tree stands 10.77 meters tall.

Some trigonometric functions can be used to solve the given problem. Let s represent the distance from the tip of the tree's shadow to where Aria stands, so that;

s = 27.75 - 23.5

= 4.25 m

s = 4.25 m

Also, let the angle formed by the line connecting the tree's tip and the shadow's tip be, so that;

Tan θ = opposite / adjacent

Here given,

Opposite side = 1.65

Adjacent side = 4.25

          = 1.65 / 4.25

          = 0.3882

θ = Tan⁻¹ 0.3882

  = 21.216

θ = 21.216°

We get θ = 21.216°

The tree's height, h, can be calculated as follows:

Tan 21.216° = h/27.75

h = Tan 21.216° x 27.75

  = 0.3882 x 27.75

h = 10.77m

As a result, the tree's height is 10.77m.

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The required equations can be used to model the situation is x = 1/2y - 3 and y = 10(x-1)

What is equation ?

An equation is a mathematical statement that proves two mathematical expressions are equal in algebra, and this is how it is most commonly used. In the equation 3x + 5 = 14, for instance, the two expressions 3x + 5 and 14 are separated by the symbol "equal."

Equations can be classified as either conditional equations or identities. Any value of the variables results in an identity being true. Only certain values of the variables in a conditional equation result in truth. When two expressions are joined together by the equals sign ("="), the result is an equation.

If the smaller number is 3 less than half a larger number, this is expressed as:

x = 1/2y - 3 ⇒(1)

If the larger number is 10 times 1 less than the smaller number, this is expressed as;

y = 10(x-1) ⇒ (2)

Substitute equation 2 into 1 as shown;

x = 1/2y - 3

x = 1/2(10x-10)- 3

x = 5x - 5 - 3

-4x = -8

x = 2

The required equations can be used to model the situation is x = 1/2y - 3 and y = 10(x-1)

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Answer:

a d

Step-by-step explanation:

Answer: 27/16

Step-by-step explanation: evaluate

The equations for parallel lines:

y = -1/2 x - 2  ----- y = -1/2 x + 6

y = 1/2 x + 4   ----- y = 1/2 x - 4

y = 2x -4       -----  y =2/1x + 2

y = 5x + 2     -----  y = 5x - 1

y = 1/5 x + 10 ----   y = 1/5 x + 3

What is slope of line?

A line's steepness can be determined by looking at its slope. Slope is calculated mathematically as "rise over run" (change in y divided by change in x).

If an equation in the form y = mx + c then m is the slope of the line.

Equation of line               slope          Slope parallel line

y = -1/2 x - 2                        -1/2                        -1/2

y = 1/2 x + 4                          1/2                           1/2

y = 2x -4                                2                            2

y = 5x + 2                               5                           5

y = 1/5 x + 10                          1/5                         1/5

Now identify the lines from the option whose slope are  -1/2,  1/2, 2, 5,  1/5.

The slope of the line y = -1/2 x + 6 is  -1/2.

The slope of the line y = 1/2 x - 4 is  1/2.

The slope of the line y = 2x -4 is 2.

The slope of the line y = 5x + 2  is 5.

The slope of the line y = 1/5 x + 10 is 1/5.

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Answer:

630 people could ride the Ferris wheel in 6 hours.

Step-by-step explanation:

First, let's find the people-per-hour amount:

Since there are 3 "20 minutes" in an hour, we multiply the amount it can accommodate by 3 as well:

35 * 3 = 105

Next, since we have 6 hours, we multiply our people-per-hour by 6:

105 * 6 = 630 people in 6 hours, final answer.

Answer:

Step-by-step explanation:

r2=x2+y2,tanθ=yx,x=rcosθ,y=rsinθ

(a)  The corresponding angles are congruent.

So, m ∠ TLC = 66°

(b)  m ∠KGX = m ∠DNK = 120°

"Information available from the question"

In the question:

A graphic artist created a design for a flower using four congruent hexagons as shown:

B P⊥M K, m ∠ M Y F=m ∠ F H B, m° W M C=m ∠ W P T, m ∠G X R=66°, m ∠ D N K=(3 x+18)°, and m ∠ W B R=(5 x-8)°.

The sum of the angles in WKNDSP is 720°.

Now, According to the question:

Part(a) Since the four hexagons are congruent

So, the corresponding angles are congruent.

Thus, m ∠ T L C=  m ∠ 6 x R

Since, m ∠ 6 x R = 66°

So, m ∠ TLC = 66°

Part(b) In WKNDSP

m  ∠KWP + m ∠ WPS + m ∠ PSD + m ∠ SDN + m ∠ DNK + m ∠ NKW = 720°

Since, 1)  B P⊥M K => m ∠KWP = 90°

2) m ∠WPS =m ∠NKW =m ∠WBR = (5x - 8)°

3) m ∠PSD = m ∠DNK = (3x + 18)°

4) m ∠SDN = m ∠GXR = 66°

So, 90 + (5x + 8) + (3x + 18) + 66 + (3x + 18) + (5x - 8) = 720°

90 + 5x + 8 + 3x + 18 + 66 + 3x + 18 + 5x - 8 = 720

176 + 16x = 720

16x = 720 - 176

16x = 544

x = 34

=> m ∠DNK = (3x + 18)° = (3 × 34 + 18)° = 120°

So, m ∠KGX = m ∠DNK = 120°

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Answer:

  1.8 cans of paint are needed

Step-by-step explanation:

A large statue has a volume of 135 m³ and an area of 81 m², while a small statue has a volume of 5 m³. You want to know the number of cans of paint required to paint the small statue, if each can covers 5 m².

The ratio of linear dimensions on the small statue to those on the large statue is the cube root of their volume ratio:

  sf = ∛(5/135) = ∛(1/27) = 1/3

The area of the small statue is the larger statue's area multiplied by the square of the scale factor:

  smaller area = larger area × (sf)²

  smaller area = (81 m²)(1/3)² = 9 m²

Each can of paint covers 5 m², so the number of cans required is ...

  (9 m²)/(5 m²/can) = 1.8 cans

You will need 1.8 cans of paint to paint the small statue.

__

Additional comment

If you must pay for whole cans of paint, you must buy 2 cans of paint.

Answer:

A=Right, B=Acute, C=Obtuse, D=Obtuse

Step-by-step explanation:

A.right

B.acute

C.obtuse

D.obtuse

the value of arc length = 3.14 and the area of the sector = 4.71cm²

The formula for the area of the sector of a circle is /360° (r2) where r is the radius of the circle and is the angle of the sector.

Arc length is the distance between two points along a section of a curve. It is given as

/360°×2r

= 180°, therefore /3 = 180/3= 60°

arc length = 60°/360 × 2×3.14×3

arc length = 3.14cm

The area of the sector = /360°×r²

60/360×3.14×3²

sector area = 3.14×3÷2

sector area = 4.71cm²

therefore the length of the arc and the area bounded by the arc and radius(sector) is 3.14cm and 4.17cm².

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Answer:the value of arc length = 3.14 and the area of the sector = 4.71cm²

Step-by-step explanation:

the value of arc length = 3.14 and the area of the sector = 4.71cm²

Using percentages, we know that Emika's monthly budget is $50.

A percentage is a figure or ratio stated as a fraction of 100 in mathematics. Although the abbreviations "pct.", "pct.", and occasionally "pc" is also used, the percent symbol, "%," is frequently used to indicate it.

A % is a number without dimensions and without a standard measurement.

For instance, you would have received a 75% grade if you answered 75 out of 100 questions correctly on a test (75/100).

So, if we multiply a fraction of a number by 100, you get a percentage. % is the symbol used to denote percentages.

Let x stand in for Emika's monthly cell phone budget.

Divide $60 by 120% to find his monthly spending limit.

x = $60 / 120%

x = $60 / 1.20

x = $50

Therefore, using percentages, we know that Emika's monthly budget is of $50.

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The amount that Tom’s most recent book earn is 10^7.

The exponent is the number of times that a number is multiplied by itself. It should be noted that the power is an expression which shows the multiplication for the same number. For example, in 6⁴ , 4 is the exponent and 6⁴ is called 6 raise to the power of 4.

Since Tom’s most recent book earned 10*4 times as much money as his first book which was 10³.

The total amount of the recent book will be:

= 10⁴ × 10³

= 10^(4 + 3)

= 10^7

The amount is 10^7.

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Answer:

2x - y - 2 = 0

Step-by-step explanation:

A (1,0)

B (0,-2)

(y-0)/(-2-0) = (x-1)(0-1)

y/-2 = (x-1)/-1

-y/2 = -x + 1

-y = 2(-x+1)

-y = -2x + 2

2x - y - 2 = 0

The surface area of the prism is 84 square centimeters.

What is a prism?

A prism is a polyhedron in geometry that has n parallelogram faces that connect the n-sided polygon basis, the second base, which is a translated duplicate of the first base, and the n faces. The bases are translated into all cross-sections that are parallel to them.

In the figure,

The surface area of the figure consists of 2 triangles, 3 rectangles.

The area of the triangle and rectangle is the surface area of the triangle.

The area of the triangle is (1/2) × base × height

The base of the triangle  ABC is BC and the height is AB.

The area of triangle ABC is (1/2) × 4 × 3 = 6 square centimeters.

The area of triangle DEF is (1/2) × 4 × 3 = 6 square centimeters.

The area of the rectangle ACDE  is 5 × 6 = 30 square centimeters.

The area of the rectangle ABEF  is 4 × 6 = 24 square centimeters.

The area of the rectangle BCDF  is 3 × 6 = 18 square centimeters.

The total surface area of the figure is ( 6 + 6 + 30 + 24 + 18) square centimeters = 84 square centimeters

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(2, 11) is the vertex of f(x) = 4(x - 2)² +11.

A quadratic equation is a second-order polynomial equation in a single variable x , ax2+bx+c=0. with a ≠ 0 .

The given equation is f(x) = 4(x - 2)² +11.

The vertex form is y=a(x-h)²+k

y=a(x-h)²+k of a parabola is said to be in vertex form because the vertex can be determined by examining the equation: (h, k) is the vertex.

(h, k) are the vertices of the given equation.

a=4,

h=2 and

k=11

so the (2,11) is the vertex of the function.

Hence, the vertex of f(x) = 4(x - 2)² +11 is (2, 11).

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Answer:

To factor out the GCF from the given expression, we can use the distributive property. This property states that we can distribute a common factor to all of the terms in an expression by multiplying the common factor by each term separately. In this case, the common factor is n, so we can distribute it to each term by multiplying it by -26, 7, and 13:

(-26n * n) + (7n * n) + (13n * n)

This gives us:

-26n^2 + 7n^2 + 13n^2

We can then combine like terms by adding the coefficients of n^2:

(-26 + 7 + 13) * n^2

This gives us the final result:

-6 * n^2

Therefore, we can factor out the GCF of -6n^2 from the given expression.

Step-by-step explanation:

Answer:

slope is 7/4

y intercept (0,2)

Step-by-step explanation:

m= 7/4 y=mx + b to find slope.

Answer:

The value of x is equal to tan^-1(0.5961538461538461). This is the angle opposite to the side with length 3.1 in the given right triangle.

Step-by-step explanation:

To find the value of x, you can use the inverse tangent function, which is denoted as tan^-1. To use the inverse tangent function, you need to know the length of the adjacent side and the length of the opposite side of the right triangle. In this case, the length of the adjacent side is 3.1 and the length of the opposite side is 5.2. So, the value of x is equal to tan^-1(3.1/5.2) or tan^-1(0.5961538461538461).

Answer: d

Step-by-step explanation:

edge 2023

The correct answers are:

1) 1/2

2) 1/10

3) 3/4

Step-by-step explanation:

[tex]\boxed{50=0.5\\}\\\boxed{10=0.1\\\\\\} \boxed{75=0.75}[/tex]

50% means 0.5. This 0.5 was (multiplied before by 100) to get this percentage.

Therefore, the answer is true

Answer:

  $11,127.75

Step-by-step explanation:

You want to use the compound interest formula A=Pe^rt to find the value of an $8000 investment compounded continuously at 11% for 3 years.

Put the values of the variables into the formula and do the arithmetic.

  A = $8000·e^(0.11·3) ≈ $11127.75

The accumulated value after 3 years will be $11,127.75.

The box's volume V expressed as a function of x V(x) =(x+1)(16 -2x) ².

A square has four equal sides, four vertices, and is a closed, two-dimensional object. It has parallel sides on either side. A square is also equivalent to a rectangle having equal length and width.

An equal-length rectangle with two neighboring sides. a quadrilateral having four straight angles and equal sides. a parallelogram with two sides that are equally spaced apart and one right angle. the shape of a right-angled rhombus.

A distance of (x+1) is cut in from both sides, so the base dimensions are

18 - 2(x+1) = 16 - 2x

The depth of the fold is (x+1), so that is the depth of the box.

The volume V(x) = (x+1)(16 -2x)²

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Answer: 2 is equal to or less than 5

Step-by-step explanation:

When the dot is colored in that means it’s equal to or _, while when it’s hollowed out it’s equal to a simple greater or less than symbol.

Answer:

-----------------------

We know parallel lines have equal slopes.

Find the slope of the given line:

The slope is - 3.5.

Use point-slope equation to find the equation of the parallel line.

Convert it to standard form:

The probability that two students out of 30 students have their birthday on the Same day is 0.706, that is nearly 71%

The possibility of an event or outcome happening contingent on the occurrence of a prior event or outcome is known as conditional probability.

the likelihood of the preceding event is multiplied by the probability of the subsequent,or conditional, occurrence to determine the conditional probability.

In a year we have 365 days

probability at least 2 people share the same birthday=1 - probability no people share the same birthday

the first student can be born on any day,so we'll give him a probability of 365/365

the probability of the next born is 364/365

the probability of the third born is 336/365

[tex] \frac{365 \: factorial}{335 \: factorial \: . {365}^{30} } [/tex]

this is the simplified form of the 30 probabilities product.= 0.294

therefore

probability at least 2 people share the same birthday=1 - probability no people share the same birthday

1 - 0.294= 0.706

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Answer:

see explanation

Step-by-step explanation:

N(t)=4|t+5|+3, evaluate N(2).

Evaluate: Plug in a number for each variable.

4(|t+5|)+3

t=2

Evaluate for t=2

4(|2+5|)+3

4(|2+5|)+3

=31

(Hope this answer does you some good )

The solution of the given inequalities will be the common region between the two (refer to the graph).

What is an inequality ?

In mathematics, "inequality" refers to a relationship between two expressions or values that is not equal to each other. Therefore, inequality emerges from a lack of balance.

Nachelle has x dimes and y nickels.

We know that, A nickel is worth 5 cent, A dime is worth 10 cent and have maximum of $0.8 combined.

So, 5% x + 10% y ≤ 0.8

     5x + 10y ≤ 80

She has at least 11 coins.

So, x + y ≥ 11

Hence, We have two inequalities as:

5x + 10y ≤ 80 and x + y ≥ 11

Similarly, x≥ 0 and y≥ 0.

Now, We'll find the points that lie on the given lines and draw the lines ( refer the given figure )

After drawing the graph, we'll check the inequalities where the portion is true.

If take point (0,0),

5x + 10y ≤ 80

5(0) + 10(0) ≤ 80

0 ≤ 80 which is true, hence we will shade the region which is down because the point (0,0 ) lies in downward region.

Similarly,

x + y ≥ 11

0 + 0 ≥ 11

 0 ≥ 11 which is false hence, we will shade the region which is up because the point (0,0 ) lies in downward region.

In result, We get the common region which is the solution.

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Answer: 0

Step-by-step explanation:

A horizontal line always has a slope of 0

The equation of the exponential function represented in this table is;

y = 6(1.8)ˣ

We are given the table of values of the exponential function and we can write the coordinates as;

(3, 34.99)

(4, 62.99)

(5, 113.37)

(6, 204.07)

(7, 367.33)

The general formula for an exponential function is;

y = a(b)ˣ

where;

a is the initial value

b is the constant multiplier

For the third coordinate, we have;

a(b)³ = 34.99    ------(1)

For the fourth coordinate, we have;

a(b)⁴ = 62.99    ------(2)

Divide eq 1 by eq 2 to get;

b = 1.8

Put 1.8 for b in eq 1 to get;

a(1.8)³ = 34.99

a = 6

This gives the exponential equation as; y = 6(1.8)ˣ

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