{ (-3, 4), (7,5), (13, — 7), (15, 4) }

Answer: 1

Step-by-step explanation:

Answer:

1 or 3/3

Step-by-step explanation:

There is a common denominator (bottom number) so you add straight across.
1+2=3 so it is 3/3, which is a whole, making it 1.

By using the concept of probability, it can be calculated that-

1)   P(Ace [tex]\cup[/tex] 5) = [tex]\frac{8}{52}[/tex]

2)  P(Ace [tex]\cap[/tex] 5) = 0

3)  P([tex]Even^c[/tex]) = [tex]\frac{20}{52}[/tex]

4)   P(Even [tex]\cup[/tex] Black) = [tex]\frac{36}{52}[/tex]

5)   P(Face [tex]\cap[/tex] Diamond) = [tex]\frac{3}{52}[/tex]

What is probability?

Probability gives us the information about how likely an event is going to occur

Probability is calculated by Number of favourable outcomes divided by the total number of outcomes.

Probability of any event is greater than or equal to zero and less than or equal to 1.

Probability of sure event is 1 and probability of unsure event is 0.

1) Number of ace card = 4

  Number of '5' card = 4

  P(Ace [tex]\cup[/tex] 5) = [tex]\frac{4}{52} + \frac{4}{52}[/tex]

                    = [tex]\frac{8}{52}[/tex]

2) P(Ace [tex]\cap[/tex] 5) = 0

3) Number of odd numbered cards = [tex]5 \times 4[/tex] = 20 (Assuming the ace is odd)

 Probability of getting an odd numbered card = [tex]\frac{20}{52}[/tex]

  P([tex]Even^c[/tex]) = [tex]\frac{20}{52}[/tex]

4) Number of black coloured even numbered card = 10

   Number of even numbered card = 20

   Number of card of black colour = 26

  P(Even [tex]\cup[/tex] Black) = [tex]\frac{20}{52} + \frac{26}{52} - \frac{10}{52}[/tex]

                              = [tex]\frac{36}{52}[/tex]

5) Number of face cards of diamond = 3

   P(Face [tex]\cap[/tex] Diamond) = [tex]\frac{3}{52}[/tex]

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0.9758 is the decay factor of the model

Given that:

The value of the U.S. dollar over time v(t) can be modeled by the following formula:

v(t) = 1.36(0.9758)^t , where t is the number of years since 2000

The form of the exponential decay models is f(t) = ab^t

where,

a is the initial value, b is the decay factor and t is the time

Comparing  f(t) = ab^t with v(t) = 1.36(0.9758)^t :

a = 1.36

b = 0.9758

Therefore, the decay factor is 0.9758

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Answer:

Step-by-step explanation:

x = 174

Answer:

Step-by-step explanation:

Triangle Area = 1/2bxh

Base (b) = 12 units

Height (h) = 5 units

1/2 × 12 × 5 =

6 × 5 =

30 units²

The required answer choices are (i)exponential decay (ii) linear and (iii) exponential growth

What are exponential growth and exponential decay?

Quantities that fluctuate quickly are subject to exponential growth and decay. The idea of geometric progression has been used to infer exponential growth and decay. Exponential growth or exponential decay are terms used to describe quantities that vary exponentially rather than continuously.

From question,

1) The first question is like, initially delivery van price is $25,000 after 2 years, the value of the van becomes $17,500

This means it is decaying. The difference between the initial price and after 2 years price is $7500.

To be linear, further after 2 years, or from start after 6 years, the price should be $10000. But it is given to be $12250.

Thus exponential decay.

2) In the second, Initially, a laptop had 100% battery life. After 3 hours, the laptop has 60% battery life. Thus the loss in 3 hours is (100 - 60) = 40%.

After 4 hours, the loss is (60 -20) = 40%

As the loss is the same in equal intervals of time, the decay is linear.

3) In the third one, A tiger reserve had an initial population of 20 tigers.

After 5 years the population was 30 tigers, thus the growth is (30-20) =10.

After 10 years, the population was 45 tigers. Thus the growth is (45-30) = 15.

Thus the increase is non-linear, and so is exponential growth.

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The percent of the original price was the price after markup will be 6.29%.

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

During a deal, a store offered a 25% rebate on a bed that initially sold for $890. After the deal, the limited cost of the bed was increased by 25%.

The marked-up price is given as,

⇒ $890 x (1 - 0.25) x (1 + 1.25)

⇒ $890 x 0.75 x 1.25

⇒ $834

The percentage is given as,

P = [(890 - 834) / 890] x 100

P = (56 / 890) x 100

P = 0.0629 x 100

P = 6.29%

The percent of the original price was the price after markup will be 6.29%.

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Answer: 94%

Step-by-step explanation:

Find what percent of the original price this represents:

$834.375 / $890 = 0.9375

0.9375 × 100 = 93.75%

93.75% ≈ 94%

Round to the nearest whole number

The price after markup was 94% of the original price.

Answer:

:)

Step-by-step explanation:

-5a + 6 + 3a + 2

Combine like terms:
-5a + 3a + 6 + 2

2a + 8 is your answer, you can't simplify it further

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

If you want to solve for the a value:

-5a + 6 = 3a + 2

Subtract 2 from both sides

-5a + 6 = 3a + 2

      - 2          - 2

-5a + 4 = 3a

(The +2 and -2 cancel each other out, it makes 0)

Add +5a to both sides

-5a + 4 = 3a

+5a        +5a

(The -5a and +5a cancel each other out, it makes 0)

4 = 8a

Divide by 8 on both sides

4/8 (OR 1/2 OR 0.5) = a

Thanks for reading my ted talk lol pls mark as brainliest and give lots of points i need them lol help a girl out!!

The equations representing the proportional relationships between two variables:

In this problem we find three cases of tables showing proportional relationships between two variables. Proportional relationships are represented by equations of the form:

y = k · x

Where:

Each table represents a proportional relationship if and only if each pair of variables has one and same proportionality factor. After a quick inspection, we find the following features:

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The expression for the discount will be written as d = 0.5L.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the discount d is 50% of the list price L. The expression for the discount will be written as below,

Discount = 50% of the list price

d = ( 50 / 100) x L

d = 0.5L

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The value of x in the quadratic equation using mathematical operations is  4±√19

To solve this problem, we have to use some mathematical operations to find the value of x.

In this process, we have to remove the square root and solve for x. This will eventually result to a quadratic equation

In the equation given;

√(2x - 6) = x - 3

Square both sides

(√(2x - 6)² = (x - 3)²

This will eliminate the square root

2x - 6 = (x - 3)²

Open the bracket on the right hand side

2x - 6 = x² - 6x - 9

Collect like terms

x² - 6x - 9 - 2x + 6 = 0

x² - 8x - 3 = 0

Solving for x

x = 4±√19

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[tex]\angle 1=150^{\circ}[/tex] (linear pair)

[tex]\angle 2=30^{\circ}[/tex] (vertical angles)

[tex]\angle 4=150^{\circ}[/tex] (linear pair)

[tex]\angle 5=83^{\circ}[/tex] (linear pair)

[tex]\angle 6=97^{\circ}[/tex] (vertical angles)

[tex]\angle 8=83^{\circ}[/tex] (linear pair)

Answer:

80 cards would have to sold before your average total cost per card falls to $10

Step-by-step explanation:

To find the number of cards you would have to sell to bring the average total cost per card down to $10, you can use the following formula:

number of cards = setup fee / (average total cost per card - cost per card)

Plugging in the values given in the problem, we get:

number of cards = $320 / ($10 - $6)

Solving this equation gives us:

number of cards = $320 / $4

Dividing 320 by 4 gives us a result of 80, so you would have to sell 80 cards before your average total cost per card falls to $10

Another approach is setting it up as y = mx+b

$10 = (320 + 6x) / x

Where x is the number of cards that you need to sell.

Solving for x, we get:

$10x = 320 + 6x

4x = 320

x = 80

The solutions to the x and w variables are x = 2097153 and w = (6)⁻²/⁵

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

1/7log(x - 1) = 3log(2)

3 ln(w + 6) = 5 ln(6)

Solving the equation (1), we have the following equation

1/7log(x - 1) = 3log(2)

Multiply both sides of the equation by 7

So, we have the following representation

log(x - 1) = 21log(2)

Apply the power rule of logarithm

log(x - 1) = log(2)²¹

By comparison, we have

x - 1 = (2)²¹

Evaluate the exponent

x - 1 = 2097152

So, we have

x = 2097153

Solving the equation (2), we have the following equation

3 ln(w + 6) = 5 ln(6)

Multiply both sides of the equation by 1/3

So, we have the following representation

ln(w + 6) = 5/3 ln(6)

Apply the power rule of logarithm

ln(w + 6) = ln(6)³/⁵

By comparison, we have

w + 6 = (6)³/⁵

So, we have

w = (6)⁻²/⁵

Hence, the solutions are x = 2097153 and w = (6)⁻²/⁵

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The weight of the 125 blue whales in the scientific notation will be 23.75 × 10⁶ kilograms.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

At a specific zoo, the typical mass of one blue whale is estimated to be 190000 kilograms. Utilize logical documentation to communicate the mass of 125 blue whales.

⇒ 190,000 × 125

Simplify the expression in the scientific notation, then we have

⇒ 190,000 × 125

⇒ 23,750,000

⇒ 23.75 × 10⁶ kilograms

The weight of the 125 blue whales in the scientific notation will be 23.75 × 10⁶ kilograms.

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Answer: y < 2

Step-by-step explanation:

Step-by-step explanation:

[tex]x + \frac{75}{4} (x) = 0[/tex]

[tex] \frac{79x}{4} = 0[/tex]

[tex]x = 0[/tex]

By using linear equation, it can be calculated that

New Solution #1 : (-6, 1) is a solution because when you plug it into the original equation x + 3y = -3, the equation simplifies to -3 = -3

New Solution #2: (-9, 2) is a solution because when you plug it into the original equation x + 3y = -3, the equation simplifies to -3 = -3

What is linear equation?

Equation shows the equality between two algebraic expressions by connecting the two algebraic expressions by an equal to sign.

A one degree equation is known as linear equation.

Equation of line : x + 3y = -3

Putting y = 1

x + 3 [tex]\times[/tex] 1 = -3

x = -3 - 3

x = -6

Putting y = 2

x + 3 [tex]\times[/tex] 2 = -3

x + 6 = -3

x = -3 - 6

x = -9

New solutions (-6, 1) and (-9, 2)

New Solution #1 : (-6, 1) is a solution because when you plug it into the original equation x + 3y = -3, the equation simplifies to -3 = -3

New Solution #2: (-9, 2) is a solution because when you plug it into the original equation x + 3y = -3, the equation simplifies to -3 = -3

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The inequality for the value of y can be given as -1/8 < -2/3y, where y < 3/16.

Inequality shows relation between two expression which are not equal to each others.

Let the required number is y.

To find the inequality that represents the -1/8 is less than the product of -2/3 and number y.

The product of -2/3 and y = -2/3y

The inequality for the y can be written as,

-1/8 < -2/3y

Solve for the value of y,

1/8 > 2/3 y

3/16 > y

Or y < 3 / 16

The required inequality is -1/8 < -2/3y, where y < 3/16.

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To find the percent increase, we need to calculate the difference between the new tuition and fees and the old tuition and fees, and then divide this difference by the old tuition and fees and multiply by 100%.

The difference between the new tuition and fees of $14,402 and the old tuition and fees of $1411 is $14,402 - $1411 = $12,991.

The percent increase is: ($12,991/$1411) * 100% = 9.2 * 100% = 920%

Therefore, the percent increase in tuition and fees between the fall of 1996 and the fall of 2018 was 920%, rounded to the nearest tenth percent.

The monomial that completes the expression 0.01 b²+.....+100 c² is 2bc

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

0.01 b²+.....+100 c²

Complete the expression with a variable

So, we have

0.01 b² + x + 100 c²

The given terms of the expression are factors/multiples of 10

By trial and error, we make use the following representation

0.01 b² + x + 100 c² = (0.1b + 10c)²

Expand the expression

0.01 b² + x + 100 c² = 0.01 b² + 2bc + 100 c²

Evaluate the like terms

x = 2bc

Hence, the monomial is 2bc

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Answer:

Yes it is

Step-by-step explanation:

Answer:

1 divided by 7 raised to the third power

Step-by-step explanation:

To find the equivalent expression, we can start by applying the rule for multiplying powers with the same base:

(7^(-2)) * (7^3) = 7^(-2+3) = 7^1 = 7

Then, we can apply the rule for raising a power to a power:

7^1 = (7^1)^(-3) = 7^(-3)

Finally, we can apply the rule for raising a number to a negative power:

7^(-3) = 1 / (7^3) = 1 / 343 = 1/7^3

Therefore, the equivalent expression is 1 divided by 7 raised to the third power.

The mapping diagram above is a function since there are no two values in set B where there is only one mapping from  Set A.

What is a function?

A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output.

In the example provided, each element in Set A is mapped to one specific element in Set B.

Set A stands for the domain, whereas Set B stands for the range. There would be exactly one value in the range for each value in the domain as a result.

Hence, the mapping diagram above is a function since there are no two values in set B where there is only one mapping from  Set A.

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The length of the PM is 6 if ABCD is congruent to MNOP.

When it comes to geometry, two figures or objects are said to be congruent if they are the same size and shape, or if one is the mirror image of the other.

More specifically, two sets of points are said to be congruent if—and only if—they can be changed into one another by an isometry, which is a combination of rigid motions including translation, rotation, and reflection. This indicates that either object may be exactly aligned with the other object by moving and reflecting it, but not by resizing it. If we can cut out and then perfectly match up two separate plane figures on a piece of paper, they are then congruent. I'm allowed to turn the paper over.

Here  both the given figures are congruent figures. So, their shape and size must be equal.

Therefore from the two figures, PM=DA

So, PM=6

Therefore, the length of the PM is 6 if ABCD is congruent to MNOP.

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The triangle has a value of x=22°.

The three vertices of a triangle make it a three-sided polygon. The angles of the triangle are formed by the three sides' end-to-end connections at a point. 180 degrees is the sum of the triangle's three angles.

Having three sides, a triangle is a form. Each kind of triangle has a unique name. The size of the angles and side lengths determine what kind of triangle it is (corners). Triangles can be classified as equilateral, isosceles, or scalene depending on how long their sides are.

The sum of all the angles in a triangle must be °

120° + (x+16)° + x° = 180°

2x + 136° = 180°

2x = 180° - 136°

2x° = 44°

x = 22°

The triangle has a value of x=22°.

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Answer:

10z + 2

Step-by-step explanation:

combine the like terms

3z + 7z = 10z

1 + 1 = 2

10z + 2

If the expression  (4k + 8)/4 simplifies to an expression of the form ak + b, then the value of a/b is 1/2

The expression is (4k + 8) / 4

The expression is the mathematical statement that consist of the different variables, numbers and the mathematical operator. The mathematical operators are addition, subtraction, division and multiplication.

The given expression is (4k + 8)/ 4

Solve the expression

(4k + 8) / 4 = 4k/4 + 8/4

Divide the terms

=k + 2

The result is in the form of ak + b

The value of a = 1

The value of b = 2

The value of a/b = 1/2

Therefore, the value of the expression a/b is 1/2

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