For each direct variation, find the constant of variation. Then find the value of y when x=-3 .
y=4 when x=3

Answer:

see explanation

Step-by-step explanation:

1

f(4) means what is the value of f(x) when x = 4

substitute x = 4 into f(x)

f(4) = 2(4) - 5 = 8 - 5= 3

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

2

substitute x = - 1 into g(x)

g(- 1) = 3(- 1)² + 5 = 3(1) + 5 = 3 + 5 = 8

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

3

substitute x = 4 into h(x)

h(4) = 3(4) + 2 = 12 + 2 = 14

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

4

(f + g)(- 2)

= f(- 2) + g(- 2)

= 2(- 2) - 5 + 3(- 2)² + 5

= - 4 - 5 + 3(4) + 5

= - 9 + 12 + 5

= - 9 + 17

= 8

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

5

(f + h)(2)

= f(2) + h(2)

= 2(2) - 5 + 3(2) + 2

= 4 - 5 + 6 + 2

= - 1 + 8

= 7

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

6

(f - g)(- 3)

= f(- 3) - g(- 3)

= 2(- 3) - 5 - (3(- 3)² + 5)

= - 6 - 5 - (  3(9) + 5)

= - 11 - ( 27 + 5)

= - 11 - ( 32)

= - 11 - 32

= - 43

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

7

(g + h)(- 2)

= g(- 2) + h(- 2)

= 3(- 2)² + 5 + 3(- 2) + 2

= 3(4) + 5 - 6 + 2

= 12 + 5 - 4

= 17 - 4

= 13

We get that when the expression 5 ∛ 9 y² . ∛ 24 y is simplified using multiplication, we get the result as 30 y.

We are given the expression:

5 ∛ 9 y² . ∛ 24 y

We need to multiply to simplify the expression.

First, we know that:

9 = 3 × 3

24 = 2 × 2 × 2 × 3

So,

∛ 24 = 2 ∛ 3

So, we get the expression as:

5 ∛ 9 y² . 2 ∛ 3 y

Multiply the terms, we get that:

10 ∛ 27 y³

= 30 y

Therefore, we get that when the expression 5 ∛ 9 y² . ∛ 24 y is simplified using multiplication, we get the result as 30 y.

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Step-by-step explanation:

f (x) = 7

Slope: 0

y-intercept: (0,7)

x   y

0   7

1    7

Graph x

Slope: 1

y-intercept: (0,0)

x   y

0  0

1    1

Plot each graph on the same coordinate system.

f (x) = 7

x

Answer: 31.9 USD

Step-by-step explanation: 6.70x4=26.8. 26.8+5.10=31.9

Answer:

Answer: 31.9 USD

Step-by-step explanation:

6.70 x 4 = 26.8

26.8 + 5.10 = 31.9

Answer:

0.7

Step-by-step explanation:

add like you would normally

Answer:

B. 8 x 10^3

Step-by-step explanation:

(1.6 x 10^5)/(0.2 x 10^2)

= (1.6/0.2)x(10^5/10^2)

= 8x10^(5-2)

= 8 x 10^3

When the product of a number m and 1.7 is 6.63 the required value of m is 3.9

In mathematics, an equation is a formula that expresses the equality of two expressions by connecting them with the equal sign = .

Now the given statement is,

The product of a number m and 1.7 is 6.63

Thus, converting it into numerical form we get,

1.7m = 6.63

Dividing both the side by 1.7 we get,

1.7m/1.7 = 6.63/1.7

Solving we get,

m = 3.9

this is the required value of m.

Thus, when the product of a number m and 1.7 is 6.63 the required value of m is 3.9

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The expanded form of 3(2x -3y -2) is given by the equation 6x -9y -6

The equation given is a linear equation in two variables and to simplify the equation 3(2x -3y -2), we need to use algebraic properties

The algebraic property used here is distributive property which says that a (b+ c) = ab + ac.

So, let us expand the equation using the algebraic property mentioned above

As a= 3, b=2x and c=3y+2

  3(2x -3y -2)

  3 (2x) -3(3y+2)

Using the property again with a=3, b=3y and c=2

     3 (2x) -3(3y+2)

     6x -3(3y) -3(2)

     6x - 9y -6

Hence, the expanded form of 3(2x -3y -2) is given by the equation 6x -9y -6

What are the 4 algebraic property?

There are four primary houses of numbers: commutative, associative, distributive, and identification. You ought to be acquainted with every of these. it's miles specifically important to understand these houses when you attain advanced math together with algebra and calculus.

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Answer: Hence the ratio will be 2 : 30, and then divide both sides by 2 to get 1 : 15 as the ratio in its simplest terms.

Step-by-step explanation:

The answer to the given logarithm expression is log₄₉7  = 1/2

Another technique to clarify exponents in mathematics is through logarithms. A base number's logarithm equals another number.

For instance, log10 100 = 2 if 102 = 100. A logarithm is defined as an influence by which variety must be raised to receive another value. this is often the foremost convenient thanks to represent large numbers. Logarithms have several important properties that prove that logarithmic multiplication and division is written because the logarithm of addition and subtraction. The log is named the logarithm of base e. The logarithm is represented by ln or loge. where 'e' represents Euler's constant,  approximately capable 2.71828. as an example, the log of 76 is written as ln 76. The log defines what percentage times 'e' must be multiplied to induce the required output.

We need to evaluate log₄₉7

Using Property

logₙ (a) = 1 / logₐ (n)

log₄₉7 = 1/ log₇ 49

Using the properties of log again logₐ (mⁿ) = n logₐ m

49 = 7²log₇ 49

can be written as

log₇ 49 = 2 log₇ 7

We know that logₐ a = 12 log₇ 7= 2

Value of log₄₉7 = 1/ log₇ 49= 1/ 2 log₇ 7= 1/2

Hence,  we evaluated the logarithm which is log₄₉7  = 1/2

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Answer:

Si estamos hablando de fracciones sería 13/30, si es en porcentaje solo divide 13÷30

Step-by-step explanation:

Para iniciar tenemos que encontar un denominador común, que seria el treinta, entonces sería como este 12/30+5/30=17/30, y luego restamos 17 a treinta, y lo que te da es el resultado, espero que te ayude.

The relationship is not functional

In the table, students 1 and 3 are having the same output. Therefore, a table cannot be a function if there are two inputs that have the same output.

Thus, the relationship between the students and the tickets sold is not a function A function is a relation in which one input can have only one output.

Let the students be = x

Let the number of tickets sold by the student be = y

Thus, from the table, it can be inferred -

Student 1 and student 3 are having the same number of outputs meaning that the number of tickets sold by student 1 and student 3 is the same.

Thus,

There is no function between the students and the number of tickets sold.

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Candles we light total in all 120 birthdays is 7260.

Arithmetic Progression is defined as the sequence of numbers where the difference is constant .

According to the given question

No of candle on 1st birthday = 1

no of candle on 2nd birthday =2

.

.

No of candle on 120th birthday= 120

The given situation can be represented in the form of sequence .

1,2,3,4,5,...,120.

The above sequence forms an Arithmetic Progression as the common difference is same that is 1.

To find the total candles we need to find the sum of the above AP.

Sum of AP [tex]=\frac{n}{2}[2a+(n-1)d][/tex]       ...where a=first term , n=total number of terms , d=common difference  .

a=1 , d=1 , n=120

Substituting the value we get

[tex]=\frac{120}{2} [2(1)+(120-1)1]\\ \\ =60[2+119] \\ \\ =60*121\\ \\ =7260[/tex]

Therefore , Total of 7260 candles  will be light in all 120 birthdays.

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The geometric probability that Juan will score more than 0 points = 0.785

Juan's game board consists of a square with a circle inscribed in it.

If he hits the circle, then he can score more than 0 points.

Length of side of the square = 50 cm

So area of the square = 50 x 50 = 2500 square cm.

Now the area of the large circle = 1963.5 square cm.

Geometric probability that Juan will score more than 0 points

                              = Area  of the circle / Area of the square

                              = 1963.5/2500

                              = 0.785

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Answer:

Step-by-step explanation:

the answer would be B) 0.215

Answer:

4.: 15.84

5.: 193.2

6.: 10.7*5, 8.4*6, 7.5*7.5, 2.1*24

7.: 6, 5.75

Step-by-step explanation:

4.: 6.6*2.4=15.84

5.: 27.6*7=193.2

6.: 10.7*5=53.5, 8.4*6=50.4, 7.33*6=43.98, 7.5*7.5=56.25, 2.1*24=50.4

7.: 1.6*6.25=10, all numbers higher than 6.25 will return products higher than 10, all numbers lower than 6.25 will return products lower than 10.

Answer:

Pretty sure it is x^10 z^7

answer is 36

Step-by-step explanation:

good right?

Answer:

Hello,

Step-by-step explanation:

0=x²+17x+72=x²+8x+9x+72=x(x+8)+9(x+8)=(x+8)(x+9)

x=[-9,-8]

Answer:

[tex]x = - 8 \: - 9[/tex]

Step-by-step explanation:

[tex]1. \: {x}^{2} + 72 + 17x = 0 \\ 2. \: (x + 8)(x + 9) = 0 \\ 3. \: x = - 8 \: - 9[/tex]

Answer:

641.86 awnser

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

you have -4 and it is a negative number so you take it away from 5 and you get 1

The inverse function returns the original value for which the output of a function was given.

[tex]y^{-1}[/tex] = -1 ± √(x - 5) /2 be the inverse the function y = (1 - 2x)² + 5.

The inverse function returns the original value for which the output of a function was given. When it comes to functions, f and g are inverse, with f(g(x)) = g(f(x)) = x. A function that is made up of its inverse returns the original value. The inverse of f is then g(y) = (y - 5)/2 = x.

An inverse in mathematics is a function that serves to "undo" another function. That is, if f(x) produces y, then putting y into the inverse of f yields x. Invertible functions are those that have an inverse, which is denoted by f1.

Let the equation be y = (1 - 2x)² + 5

simplifying the above equation, we get

√(x - 5) y = (1 - 2x)² + 5

x = (1 - 2y)² + 5

The function of x be x = (1 - 2y)² + 5

x - 5 = (1 - 2x)²

± √(x - 5) = (1 - 2y)

± √(x - 5) - 1 = 2y

Divide both sides of the equation by 2, we get

[± √(x - 5) - 1]/2 = 2y/2

[± √(x - 5) -1] /2 = y

[tex]y^{-1}[/tex] = -1 ± √(x - 5) /2

Therefore, the inverse of the function be [tex]y^{-1}[/tex] = -1 ± √(x - 5) /2.

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Two expressions with an equal sign is called as Equation. If the difference between two numbers is 12. The first number is 5 less than twice the second number then the two numbers are 29 and 17.

Two expressions with an equal sign is called as Equation.

Let the two numbers be a and b.

Given equation is a-b=12 .....(1) and

The first number is 5 less than twice the second number i.e a=2b-5

Substitute a in (1)

2b-5-b=12

b-5=12

b=17

b=17 is the second number.

Now we have to find first number so

a=2b-5...(2)

Substitute b=17 in (2)

a=2(17)-5

=34-5

=29

Therefore the two numbers are 29 and 17.

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The measure of angle A is 75 degree.

What is Polygon?

Polygon is a two-dimensional geometric figure that has a finite number of sides.

Now, Translations do not change the same number because the translation is stationary. Because stationary means that it is steady and does not move anywhere.

Hence, The measure of angle A is 75 degree.

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Answer:

I named them in alphabetical order, ordering letters from bottom to top e.g a ray has A at the bottom and B at the top. That would be ray AB.

Answer: for number 1 it is 9 number 2 is 24 number 3 is 4 and number 4 is 31

Step-by-step explanation: hope this is it

It totally depends on the value of a , that it will stretch or compress.

A function change that makes a graph bigger or narrower is called a stretch or compression. To stretch a graph is to enlarge or reduce its size. Transformations are used to change the graph of a parent function into the graph of a more complex function.

1. Determine a's value.

2. Multiply each value in the range by a.

3. The graph is distorted by an amount equal to aa if a>1.

4.The graph is compressed by a factor of aa if 0<a<1.

5.If a<0, the graph is distorted around the x-axis and either stretched or compressed.

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Answer:

I'm from California I'm new to this