express the vector with initial point (1,-1) and terminal point (4,2) as a linear combination of the standard unit vectors.

a. 3i + 3j

b. 5i + j

c. 3i - 3j

d. -3i + 3j

e. 3i + 4j

f. none of these

Answer:

1/10 or 0.1 m^3

Step-by-step explanation:

V = 1/4 * 2/3 * 3/5 = 6/60 = 1/10 m^3 = 0.1 m^3

The width of the actual parking lot, given the length of the scale drawing and the actual length, is 235 m

The scale is given in the question to be 1 cm : 50 m. This means that for every 1 cm on the scale drawing, the actual dimensions are 50m.

Given that the width of the parking lot on a scale drawing is 4. 7 cm, the width of the actual parking lot will be:

= Width of parking lot on scale drawing x Number of meters per centimeter in drawing

= 4. 7 x 50

= 235 m

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Answer:

x = 2

Step-by-step explanation:

The image shows a large rectangle with a similar, smaller triangle inside of it. The small leg on the small rectangle is 4, and the small leg on the large rectangle is 12. This tells me that the scale factor is 3.

If the scale factor is 3, then

[tex]6*3=6+6x[/tex]

Simplify

[tex]18=6+6x\\12=6x\\x=2\\[/tex]

The constant of proportionality is the ratio of the number of guests to the food prepared is 0.8.

What are the ratio and proportion?

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

As per the given table,

Suppose the number of guest ∝ food prepared.

Take the first data,

12 ∝ 15

12 = k(15)

k = 12/15 = 0.8

Hence "The constant of proportionality is the ratio of the number of guests to the food prepared is 0.8".

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The constant of proportionality is the ratio of the number of guests to the food prepared is 0.8.

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

As per the given tabel,

Suppose the number of guest ∝ food prepared.

Take the first data,

12 ∝ 15

12 = k(15)

k = 12/15 = 0.8

Hence "The constant of proportionality is the ratio of the number of guests to the food prepared is 0.8".

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The given question is incomplete, the complete question follows,

$135 is markup price when cost is $450.

What is the cost price and an example?

selling price of item = $600

       cost = $450

10%×$650=$585

$585-$450=$135

$135 is markup price .

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Answer:

The bill after tipping 21 percent would be $104.30.

Step-by-step explanation:

$86.20 x 0.21 = $18.102

$86.20 + $18.102 = $104.302

$104.302 ≈ 104.30

Hope my answer helped! Have a great afternoon.

The slope will be 1, for the right.

What is the slope of line?

Given two line-side coordinates, use the slope formula to determine the slope of the line. The slope is defined as the ratio of the change in the y values to the change in the x values using the formula m=(y2-y1)/(x2-x1). x1 and y1 are represented by the first point's coordinates. The second points are located at x2, y2, and their locations. Whichever point you choose to classify as the first and which as the second doesn't matter.

We know that formula two find the slope of the line joining two points which is

m = (4-3)/(4-3)

m = 1

Hence the slope of the line is shown in the graph is 1.

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I will have to reject the offer of the rival company since it's lesser than $40560.

From the information, the person works a basic week of 40 hours and the basic rate is $19.50 per hour. It should be noted that there are 52 weeks in a year. The total amount will be:

= 40 × 19.50 × 52

= $40560

The rival company offers you an annual salary is $36000.

I'll reject the rival company's offer since it's lower.

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The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A it is true.

The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A. A determinant of an n×n matrix can be defined as a sum of multiples of determinants of (n−1)×(n−1) sub matrices.

This is done by deleting the row and column which the elements belong and then finding the determinant by considering the remaining elements. Then find the co factor of the elements. It is done by multiplying the minor of the element with -1i+j. If Mij is the minor, then co factor, [tex]c_{ij}[/tex] [tex]= -1^{i+j}[/tex] + [tex]m_{ij}[/tex].

Each element in a square matrix has its own minor. The minor is the value of the determinant of the matrix that results from crossing out the row and column of the element .

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A. The length of the side of original garden is 4 m

B. The width of the new garden is 5m

C. The length of the new garden is 7m

D. The area of the new garden is 35 m²

Let the side of the garden = x m.

area = x² m²

From the question, we have

The new length is (x+3) m and the new width is (x+1) m.

Then the new area = (x+3)(x+1) m².

(x+3)(x+1)=x²+19

⇒ x²+3x+x+3=x²+19

⇒ 4x+3=19

⇒ 4x=19-3

⇒ 4x=16

⇒ x = 4 m

The length of the side of original garden is 4 m

new length = (x+3) m = (4+3)m = 7 m

new width = (x+1) = (4+1) = 5 m

new area = (x+3)(x+1) m² = 7*5 = 35 m²

Multiplication:

Finding the product of two or more numbers in mathematics is done by multiplying the numbers. It is one of the fundamental operations in mathematics that we perform on a daily basis. Multiplication tables are the main use that is obvious. In mathematics, the repeated addition of one number in relation to another is represented by the multiplication of two numbers. These figures can be fractions, integers, whole numbers, natural numbers, etc. When m is multiplied by n, either m is added to itself 'n' times or the other way around.

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The value of x and y in the vector matrix are 2 and 5

If a matrix has only one row or only one column it is called a vector.

A matrix having only one row is called a row vector.

A matrix having only one column is called a column vector.

The matrix for two equations

3 - x/4 = 5/2 ---------------------1

8 - 12/4 = y ----------------------2

From equation 1,

collect like terms

x/4 = 3-5/2

x/4 = 1/2

cross multiply

2x = 4

x = 4/2

x = 2

From equation 2,

8 - 3 = y

y = 5

In conclusion, the value of x = 2 and the value of y = 5

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Answer:

-7

Step-by-step explanation:

Given inequality:

[tex]4x - 12 \leq 16 + 8x[/tex]

Subtract 4x from both sides:

[tex]\implies 4x - 12-4x \leq 16 + 8x -4x[/tex]

[tex]\implies -12\leq 16+4x[/tex]

Subtract 16 from both sides:

[tex]\implies -12-16\leq 16+4x-16[/tex]

[tex]\implies -28\leq 4x[/tex]

[tex]\implies 4x \geq -28[/tex]

Divide both sides by 4:

[tex]\implies 4x \div 4 \geq -28 \div 4[/tex]

[tex]\implies x \geq -7[/tex]

This means that x is equal to or greater than -7.

Therefore, the value of x that is in the solution set of the inequality is -7 as -10, -9 and -8 are all less than -7.

Answer:

x ≥ -7

Step-by-step explanation:

Given inequation,

→ 4x - 12 ≤ 16 + 8x

Then the value of x will be,

→ 4x - 12 ≤ 16 + 8x

→ 4x - 8x ≤ 16 + 12

→ -4x ≤ 28

→ x ≥ 28/-4

→ [ x ≥ -7 ]

Hence, the value of x is -7.

Answer: <1=104 degrees, <2=76 degrees, <4=104 degrees, <5=104 degrees, <6= 76 degrees, <7= 76 degrees, <8= 104 degrees

Step-by-step explanation:

<76 & < 2 are vertical angles, which means they are congruent. <1 & <2 are supplements, meaning when you add them up they equal 180 degrees (180-76=104 degrees). <1 & <4 are vertical angles. Using the Alternating Exterior Angles Theorem (AIA), <2 & <7 are congurent. Using the same theorem, <1 & < 8 are congruent. <7 & <5 are supplements, and so is <8 & <6.

The number needed to multiply the amount of each ingredient by to adjust the recipe is 5. It's determined by dividing the number of people that needs to be served by the number of people the provided ingredients will serve.

1 ¼ teaspoons salt

3 ¾ cups sugar

5 eggs

10 tablespoons milk

10 ½ cups chocolate chips

1. Number needed to multiply the amount of each ingredient by to adjust the recipe = Number of people that needs to be served ÷ The ingredients provided serves

= 60/12

= 5

2. Steps involved in finding out how much flour you will need to make 60 servings of chocolate chip cookies.

Quantity of flour provided = 1 ¼ cups

Flour needed for 60 servings = Quantity of flour provided × number needed to multiply each ingredients with

= 1 ¼ × 5

= 5/4 × 5

= 25/4

= 6 ¼

3. Steps involved in finding out how much baking soda you will need to make 60 servings of chocolate chip cookies

baking soda needed for 60 servings = Quantity of baking soda provided × number needed to multiply each ingredients with

= ½ × 5

= 5/2

= 2 ½

4. Teaspoons salt = ¼ × 5 = 5/4 = 1 ¼

Cups sugar = ¾ × 5 = 15/4 = 3 ¾

Eggs = 1 × 5 = 5

tablespoons milk = 2 × 5 = 10

Cups chocolate chips = 1 ¾ × 6 = 7/4 × 6 = 42/4 = 10 ½

5. The number of eggs needed for 60 servings than 12 servings = eggs needed for 60 servings - ieggs needed for 60 servings

= 5 - 1

= 4

6. Number needed to multiply the amount of each ingredient by to adjust the recipe to 78 servings = Number of people that needs to be served ÷ The ingredients provided serves

= 78/12

= 6 ½

7. One time I made a mistake of keeping bad company, it really affected my studies because I lost concentration in school. My parents were disappointed in me but they helped me get back on the right track.

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The value of the linear expression quantity negative 1 over 4 times r minus 8 minus 5 over 7 times r end quantity minus the linear expression quantity negative 3 over 4 times r plus 9 end quantity is B. negative 3 over 14 times r plus negative 17

Expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both.

Based on the information given, the expression will be:

= (-1/4r - 8 - 5/7r) - (-3/4r + 9)

Collect like terms

-1/4r - 5/7r + 3/4r - 8 - 9.

= - 3/14r - 17

In conclusion, the correct option is B.

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Answer:

Step-by-step explanation:

b

The y-coordinate of the point that divides the directed line segment from J to K into a ratio of is 5.

The coordinates of point that divides the line segment into m:n ratio can be obtained as follows,

Coordinates of point = [tex](\frac{mx_{2}+ nx_{1} }{m+n} \frac{my_{2}+ ny_{1}}{m+n} )[/tex]

The coordinate of point J is (-3,1)

The coordinate of point K is (-8,11)

Consider the point that divides the line segment into 2:3 ratio as P(x,y).

The coordinates of point that divides the line segment into 2:3 ratio can be calculated as follows,

[tex]Coordinates of P = (\frac{3(-3)+2(-8)}{2+3}, \frac{3(1)+2(11)}{2+3} )[/tex]

[tex]= (\frac{-9-16}{5}, \frac{3+22}{5} )\\\\= (\frac{-25}{5} \frac{25}{5} )[/tex]

= (-5,5)

Hence the answer is The y-coordinate of the point that divides the directed line segment from J to K into a ratio of 2:3 is 5.

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If Emily's family loves to work together in the garden . The number of vegetable plants they have is :20.

Using this formula to determine the number of vegetable plants

Number of vegetable plants = Percentage of vegetable plants  × Number of plants

Let plug in the formula

Number of vegetable plants = 40% × 50

Number of vegetable plants = 20

Therefore we can conclude that  the number of vegetable plants is 20.

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The correct question is :

Emily's family loves to work together in the garden. They have a slight preference for flowers, as 60 percent of their plants are flowers and 40 percent are vegetables. They have 50 plants growing in the garden.

How many vegetable plants do they have?

Answer:

x = 12, y = 15

Step-by-step explanation:

x + y = 27

1 / 2 x + 1 / 3 y = 11

y = 27 - x

1 / 2 x + (27 - x) / 3 = 11

1 / 2 x + 9 - 1 / 3 x = 11

1 / 6 x = 2

x = 12

12 + y = 27

y = 15

The area of the triangle is 43.81 square units

The side a = 8 units

The side b = 11 units

The perimeter of the triangle = 32 units

First we have to find the third side of the triangle

a + b + c = 32

Substitute the values in the equation

8 + 11  + c = 32

19 + c = 32

c = 32 - 19

c = 13 units

Then the area of the triangle = [tex]\sqrt{s(s-a)(s-b)(s-c)}[/tex]

The value of s = (a + b + c) / 2

= (8 + 11 + 13) / 2

= 32/2

= 16

Substitute the values in the equation

The area of the triangle = [tex]\sqrt{16(16-8)(16-11)(16-13)}[/tex]

Subtract the terms

= [tex]\sqrt{(16)(8)(5)(3)}[/tex]

= [tex]\sqrt{1920}[/tex]

= 43.81 square units

Hence, the area of the triangle is 43.81 square units

The complete question is:

Find the area of a triangle , two sides of which are 8 cm and 11 cm and the perimeter is 32 cm.

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Answer:

q = 4

Step-by-step explanation:

Step 1: Set up the equation

Step 2: Solve for q

The length of the first piece is 6 inches.

The length of the second piece is 24 inches.

The length of the third piece is 30 inches.

The length of the first piece = x

The length of the second piece = 4 ×x = 4c

The length of the third piece = 5 × x = 5x

Total length of the board = 60

Sum of the length of the three pieces = total length of the board

x + 4x + 5x = 60

10x = 60

x = 60 / 10

x = 6

The length of the second piece = 4 ×6 = 24

The length of the third piece = 5 × 6 = 30

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The fraction that 1 4/5 is of 1 2/3 is 1 2/25.

A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.

Let the fraction be illustrated as x

Therefore, 1 2/3 of x = 1 4/5

5x/3 = 9/5

Cross multiply

5x × 5 = 3 × 9

25x = 27

Divide

x = 27 / 25

x = 1 2/25.

The fraction is 1 2/25.

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Answer:

[tex]x=6, y=-2[/tex]

Step-by-step explanation:

[tex]-2=3x-20 \\ \\ 3x=18 \\ \\ x=6 \\ \\ \therefore x=6, y=-2[/tex]

Answer:

The answer is x = 6. If you want to solve the equation by inputting the x and y value, then take the x value and input it into the equation as well as the y value.

Step-by-step explanation:

To solve this equation, plug in the value equal to y and solve for x. The first thing you have to do is make the equation -2 = 4x - 20, since we already have the value for y which is given in the question. Then add 20 to both sides of the equation. We now have 18 = 3x, divide both sides by 3 and you have your answer.

Hence, X = 6.

Step-by-step explanation:

I suspect you mean

11³ × 11 = ?

11³ ÷ 11 = ?

11³ × 11 = 11⁴

11³ ÷ 11 = 11²

why ?

11³ = 11×11×11

11³ × 11 = 11×11×11 × 11 = 11×11×11×11 = 11⁴

11³ ÷ 11 = 11×11×11 / 11 = 11×11 × 1 = 11×11 = 11²

The number that represents the shoe rental charge is $3 and the price per game is $2.5.

Given:

The function y=2.5x+3 represents the cost y of bowling x games.

y = 2.5x+3

In the equation the 2.5 represents additional fee.

For 1 game = 2.5*1 = 2.5

For 2 games = 2.5 * 2

= 5

3 is the flat fee for renting the shoes.

Therefore the number that represents the shoe rental charge is $3 and the price per game is $2.5.

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The constraints for this situation in the form of a system of inequalities is 6x + 10 y = 60.

Given:

you receive a $60 gift card to a move theater. a ticket to an afternoon show costs $6 and a ticket to an evening show costs $10. the rules of the gift card state that you can only buy a maximum of 8 total tickets with the card.

x =  the number of afternoon tickets and y = the number of evening tickets.

6x ≤ 60

10y ≤ 60.

so

6x + 10 y = 60.

Therefore the constraints for this situation in the form of a system of inequalities is 6x + 10 y = 60.

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