For each equation, determine whether it represents a direct variation, an inverse variation, or neither.
Find the constant of variation when one exists and write it in simplest form.

The equation of the line that passes through (3, 1) and (1,2) in slope intercept form is y = - 2 / 2 x + 5 / 2.

The equation of a line can be represented in different form such as slope intercept form, point slope form, standard form and general form.

Therefore, let's write the equation of a line that passes through (3, 1) and (1, 2).

using slope intercept form,

y = mx + b

where

Therefore, let's find slope

m = 2 - 1 / 1 - 3

m = 1 / - 2

m = - 1 / 2

Let's find y-intercept using (1, 2)

2 = - 1 / 2(1) + b

b = 2 + 1 / 2

b = 5 / 2

Therefore, the equation is y = - 2 / 2 x + 5 / 2

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Answer:

??

Step-by-step explanation:

where are the equations ?

Answer:

Step-by-step explanation:

Answer:

No entendí porfavor puedes ponerlo en Español

The volume is the amount of space thus the volume of the given prism will be 204.7 cm³ thus option (B) is correct.

Volume is the scalar quantity of any object that specified occupied space in 3D.

For example, the space in our room is referred to as volume.

Volume has units of cube example meter³,cm³, etc.

The volume of the given prism will be the area of the front triangle with a length of 12 cm.

The form triangle has been attached below,

The length x will be,

x = √(6² - 3.5²) = 4.87 cm.

The area of from triangle = (1/2) × 7 × 4.87

A = 17.06 cm²

The volume of the prism = A × length (12 cm)

Volume = 17.06 × 12 = 204.68 cm².

Hence "The volume is the amount of space thus the volume of the given prism will be 204.7 cm³".

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The complete question has been attached below ;

Answer: -6

Step-by-step explanation:

Answer:

50 miles per hour

Step-by-step explanation:

80 km         1 mi        

---------- x ------------ = 50 mi/hr

  1 hr         1.6 km

1) The height of one of these cylinders if its radius is 2 inches is

115.207 inches.

2) The height of one of these cylinders if its radius is 3 inches is

51.203 inches.

3) The height of one of these cylinders if its radius is 6 inches is

12.800 inches.

1) when radius is 2 inches then:

πr²h = 1447

h = 1447/ (3.14 x 2²) = 115.207 inches

2)when radius is 3 inches then:

πr²h = 1447

h = 1447/ (3.14 x 9²) = 51.202 inches

3) when radius is 6 inches then:

πr²h = 1447

h = 1447/ (3.14 x {36}²) = 12.800 inches

1) The height of one of these cylinders if its radius is 2 inches is

115.207 inches.

2) The height of one of these cylinders if its radius is 3 inches is

51.203 inches.

3) The height of one of these cylinders if its radius is 6 inches is

12.800 inches.

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Answer:

6

Step-by-step explanation:

the answer is 6

An eight pointed star have 8 rotational symmetry and 8 reflection symmetry

The rotational symmetry of a shape explains why an object's shape remains unchanged when rotated about its own axis.

The eight pointed star while standing on any of the edges will be symmetrical.

Symmetry with respect to reflections is known as reflection symmetry. Mirror or line symmetry are other names for reflection symmetry.

For a reflection symmetry to be in a figure, the figure must at least have one line dividing it into two parts, one of which is the mirror image of the other,

Each of the peak and crest in the star will make 8 reflection symmetry

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Answer:

find the increased dollar amount by finding the percentage amount first:

$ 39,400 * .13

= $ 5,122

then take $ 5,122 and add it to the original price

$ 39,400 + $ 5,122 = $ 44,522 (new price)

Step-by-step explanation:

The intersection of A and I, A ∩ I = {-2, -1, 1}

The intersection of two sets A and B is the set of all common elements, it is denoted with A ∩ B.

Whereas the union of those two sets is the set of all elements that are either in A or in B, it is denoted by A ∪ B.

The given sets are,

A = {-2, -1, 0, 1, 7}

And I = {-2, -1, 1, 2, 8}

Intersection of A and I,

A ∩ I = {-2, -1, 1}

The intersection of A and I is {-2, -1, 1}.

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The ratio of snakes to frogs is 1 : 2.

The ratio of frogs to animals is 2 : 3.

If 3 more snakes are added, the number of frogs that should be added to keep the ratio constant is 6.

Here are the completed tables:

TVs                   2        4       6

Computers       7       14        21

Trumpets   10       5          20           25

Drums         8         4         16             20

Books      0       40       100

Boxes      0        2        5

Ratio expresses the relationship between two or more numbers. It is the number of times that one value is contained within other value(s).

The ratio of snakes to frogs can be determined by counting the number of snakes and frogs.

Number of snakes = 4

Number of frogs = 8

The ratio of snakes to frogs - 4 : 8 = 1 : 2

The ratio of frogs to animals = number of frogs : number of animals = 8 : 12 = 2 : 3.

Number of snakes if 3 more are added = 4 + 3 = 7

Ratio of snakes to frogs - 1 : 2  

Number of frogs that would keep the ratio constant = 7 x 2 = 14

Number of frogs that should be added = 14 - 8 = 6

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For Jeremy the new balance due was $8.9  .

In the question ,

it is given that ,

bill received by Jeremy with balance due =  $35.60  

also given that after an error occurred  ,

the new balance was 1/4 of the original balance due .

So , the new balance due is = (1/4) × (original balance due)

Substituting the value of original balance due ,

we get ,

new balance due = (1/4) × (35.60)

= 35.60/4

On Simplifying further ,

we get ,

= 8.9

Therefore , For Jeremy , the new balance due was $8.9  .

The given question is incomplete , the complete question is

Jeremy received a bill with a balance due of $35.60. After an error was corrected, the new balance was 1/4 of the original balance due. What was the new balance due ?

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The equation that represents the length of the candle over time will be b = -0.25t.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

A 2 ¹/₂ inches candle torches in 10 hours.

Let 'b' be the length of the candle and 't' be the number of hours. Then the equation is given as,

b = -[(2 ¹/₂) / (10)]t

b = -0.25t

The equation that represents the length of the candle over time will be b = -0.25t.

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The populations, considering an exponential function, are given as follows:

An increasing exponential function is modeled according to the rule presented as follows:

[tex]A(t) = A(0)(1 + r)^t[/tex]

In which the variables of the function are:

In this problem, the parameters are given as follows:

A(0) = 16, r = 0.2.

Hence the function, written as P(t), is:

[tex]P(t) = 16(1.2)^t[/tex]

The numeric values are found replacing the lone instance of t by the value at which we want to find the numeric value, hence:

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The value of the solution of division is 115 with the remainder 11.

We have to give that,

1311 divided by 20.

Now, using long division as,

1311 divided by 20.

20 ) 2311 ( 115

    - 20

     ------------

        31

       - 20

        ------

           111

         - 100

          --------

              11

Hence, the solution of division is, 115 with the remainder 11

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The probability of tossing a six-sided die with sides numbered 1 through 6 and getting a 5 is 0.166666 or 1/6.

Here in the question, we see that a six-sided die is tossed. So there will be a total of 6 outcomes.

So the sample space will be {1,2,3,4,5,6}

Of which the possible outcome of getting a 5 is 1

Let A be the event of getting a 5 on tossing a six-sided die

∴ the probability of getting a 5 on tossing a six-sided die is P(A)=1/6

∵ we know that the probability of an event is the possible outcome of the event divided by the total outcomes of that event.

So here the probability of getting a 5 is 0.166666 or 1/6.

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The prime factorization of 48 is  2⁴  ×  3.

Those greater than one are known as prime numbers. They simply have two variables: the number itself and factor 1. This indicates that these numbers cannot be divided without leaving a remainder by any number other than 1 and the number itself.

Given:

The number is 48,

Factorize 48 we get 2 × 2  × 2  × 2 × 3

= 2⁴  ×  3

Therefore, the prime factorization of 48 is  2⁴  ×  3.

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Answer:

no

Step-by-step explanation:

because Kira ordered 5 pieces of crab while Marcy has ordered 6 pieces of crab

Answer:

x = 11

Step-by-step explanation:

(7x - 4) and 73 are alternate exterior angles and are congruent , then

7x - 4 = 73 ( add 4 to both sides )

7x = 77 ( divide both sides by 7 )

x = 11

Answer:

[tex]x = 11[/tex]

Step-by-step explanation:

two angles are congruent for the parallelism of the two horizontal lines (external alternates). thus

[tex]7x - 4 = 73 \\ 7x = 77 \rightarrow x = 11[/tex]

Kinetic energy of a 64 kg object travelling at 12 m/s is 4.6kj.

Kinetic energy = KE = [tex]\frac{1}{2}mv^{2}[/tex]

Mass = m = 64 kg

Velocity = v = 12 m/s

KE = [tex]\frac{1}{2}*64*(12)^{2}[/tex]

    = 4608 J

1000 j = 1 kj

      1 j = 1/1000 kj

4608 j = 4608/1000 kj

          = 4.608 kj

Hence, kinetic energy is 4.6 kj.

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The coordinates of B are (-7,-2).

What do you mean by x and y coordinates?

The x and y coordinates are a component of the x-axis and y-axis in a 2D space in the Cartesian coordinate system. The x and y coordinates for a point in space are expressed as an ordered pair (x, y). The position of the point on the x-axis is shown by the first number, while its location on the y-axis is indicated by the second number.

According to the given data in the question,

if M is the location where line segment AB meets its midpoint.

Then, we will using the midpoint formula,

[tex](-5,2)=(\frac{-3+x}{2},\frac{6+y}{2})..............(1)[/tex]

Putting the x-coordinates in (1),

[tex]-5=\frac{-3+x}{2}\\ -10=-3+x\\-10+3=x\\x=-7[/tex]

Similarly, putting the y-coordinates in (1),

[tex]2=\frac{6+y}{2} \\4=6+y\\4-6=y\\y=-2[/tex]

Hence, the coordinates of B are (-7,-2).

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Answer: 16

Step-by-step explanation:

Imagine you had 4 apples and someone gave you 12 more. You would have 16 apples.

The value of the function f(a+4) is  [tex]\frac{7}{a^{2} +8a+11}[/tex]

function, in mathematics, is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable called the dependent variable.

if f(x) = [tex]\frac{7}{x^{2} - 5}[/tex], which means this equation is a function of x,

To find another equation whose function is f(a + 4)

We substitute x for a + 4 in the above equation

f(a+4) = [tex]\frac{7}{(a+4) ^{2} - 5 }[/tex]

expanding [tex](a + 4)^{2}[/tex], and simplifying the denominator, we have

[tex]a^{2}[/tex] +8a + 16 - 5 = [tex]a^{2}[/tex] + 8a + 11

so the simplified form of the new function would be  [tex]\frac{7}{a^{2} +8a+11}[/tex]

In conclusion, the function f(a +4) =  [tex]\frac{7}{a^{2} +8a+11}[/tex]

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The fraction is equivalent to the [tex]\sqrt{x+2}-\sqrt{x}[/tex].

The correct option is (C).

Given,

The fraction is given as:

[tex]\frac{2}{\sqrt{x} -\sqrt{x+2} }[/tex]

To find the above fraction which choice is equivalent to the fraction?

Now, According to the question:

Simplify or expand

[tex]\frac{2}{\sqrt{x} -\sqrt{x+2} }[/tex]

Rationalize the denominator:

[tex]\frac{2(\sqrt{x} -\sqrt{x+2} )}{(\sqrt{x} -\sqrt{x+2})(\sqrt{x} -\sqrt{x+2} ) }[/tex]

Expand the expression:

[tex]\frac{2(\sqrt{x} +\sqrt{x+2} )}{(\sqrt{x})^2-(\sqrt{x+2} )^2 }[/tex]

[tex]\frac{2(\sqrt{x} +\sqrt{x+2} )}{x-(x+2)}[/tex]

[tex]\frac{2(\sqrt{x} +\sqrt{x+2} )}{-2}[/tex]

Determine the sign and cross out the common factor:

[tex]\sqrt{x+2}-\sqrt{x}[/tex]

Hence, The fraction is equivalent to the [tex]\sqrt{x+2}-\sqrt{x}[/tex].

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Answer: $323,050

Step-by-step explanation:

355,000 over 1 x 9 over 100 = 3195000 over 100 (31950)

355,000- 31,950 = 323,050 which is your answer, hope this helped <3

The ratio shows how many times one value is contained in another value.

8 bags of chips = $12

1 bag of chips = $1.5

The unit price of a bag of chips is $1.5

The ratio shows how many times one value is contained in another value.

Example:

There are 3 apples and 2 oranges in a basket.

The ratio of apples to oranges is 3:2 or 3/2.

There are 4 black and 3 white marbles in a bag.

The ratio of black and white marbles in the bag is 4:3.

We have,

8 bags of chips = $12

Divide both sides by 8.

1 bag of chips = $12/8

1 bag of chips = $3/2

1 bag of chips = $1.5

This means,

1 bag of chips costs $1.5

Thus,

The unit price of a bag of chips is $1.5

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