X -2= -22 need to know the answer I am late for my home work

Answer:

[tex] \sf \fbox{Age of pamela is 8 year}[/tex]

Step-by-step explanation:

let the age of Debra is x and Pamela is x+7 year old,

Given condition- In 6 years Pamela will be twice as old as debra, so the algebraic expression will look like,

[tex]x+7+6 = 2(x+6)[/tex]

[tex]x+13 = 2x + 12[/tex]

[tex]2x-x = 13-12[/tex]

[tex]x = 1[/tex]

Age of debra is 1 years,

now we can calculate the age of pamela by substituting value of x,

x + 7 = 1 + 7 = 8 years

━━━━━━━━━━━━━━━━━━━━━━━

Verification-

after 6 years the age of debra & pamela will be 7 & 14. 14 is twice of 7 which satisfies the given condition.

[tex]\sf \small \pink{Thanks }\: \green{for} \: \blue{joining} \: \orange{brainly } \: \red{community}![/tex]

A function is a relation that uniquely associates members of one set with members of another set. More formally, a function from A to B is an object f such that every a in A is uniquely associated with an object f(a) in B. A function is therefore a many-to-one (or sometimes one-to-one) relation. The set A of values at which a function is defined is called its domain, while the set f(A) subset B of values that the function can produce is called its range. Here, the set B is called the codomain off.

A function from a set X to a set Y is an assignment of an element of Y to each element of X. The set X is called the domain of the function and the set Y is called the codomain of the function.

A function, its domain, and its co-domain are declared by the notation f: X→Y, and the value of a function f at an element x of X, denoted by f(x), is called the image of x under f, or the value of f applied to the argument x.

Functions are also called maps or mappings, though some authors make some distinction between "maps" and "functions"

f(x) = x - 2

X=0

f(0) = 0-2

f(0) = -2 ...(1)

f(1) = 1-2

f(1) = - 1 .....(2)

f(2) = x-2

f(2)= 2-2

f(2)= 0....(3)

Answer = Straight line figure

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The answer is  102.93174866

The Karatsuba set of rules becomes the primary multiplication set of rules asymptotically quicker than the quadratic "grade faculty" algorithm. The Toom–cook algorithm (1963) is a faster generalization of Karatsuba's technique, and the Schönhage–Strassen algorithm (1971) is even quicker, for sufficiently big n.

Multiplication is the main device for lots of forms of maths which include algebra, calculus, equations, and greater. The capacity to rehearse and understand multiplications up to and such as 12 by means of the final yr of number one college will permit your toddler to with a bit of luck and skillfully address greater complex mathematical topics.

Familiarity and skillability with the primary timetables are essential building blocks in math. It opens the door to multi-digit multiplication and demystifies tactics like long department and simplifying fractions. It lays the foundation for algebra.

Multiply 10 by

10.100+10(−√3)+√6⋅10+√6(-√3)

Multiply −1 by 10.100-10√3+√6⋅10+√6(−√3)

Move 10 to the left of

√6.100-10√3+10.√6+√6(−√3)

Multiply √6(−√3).

Combine using the product rule for radicals.

100−10[tex]\sqrt{3}[/tex]+10[tex]\sqrt{6}[/tex]−[tex]\sqrt{6.3}[/tex]

Multiply 6 by

3.100−10[tex]\sqrt{3}[/tex]+10[tex]\sqrt{6}[/tex]−[tex]\sqrt{18}[/tex]

Rewrite 18 as 32⋅2.

Factor 9 out of

18.100−10[tex]\sqrt{3}[/tex]+10[tex]\sqrt{6}[/tex]−[tex]\sqrt{9}[/tex](2)

Rewrite 9  as

32.100−10[tex]\sqrt{3}[/tex]+10[tex]\sqrt{6}[/tex]−[tex]\sqrt{32.2}[/tex]

Pull terms out from under the radical.

100−10[tex]\sqrt{3}[/tex]+10[tex]\sqrt{6}[/tex]−(3[tex]\sqrt{2}[/tex])

Multiply 3 by −1.100−10[tex]\sqrt{3}[/tex]10[tex]\sqrt{6\\}[/tex]−3[tex]\sqrt{2}[/tex]

The result can be shown in multiple forms.

Exact Form:

100−10[tex]\sqrt{3}[/tex]+10[tex]\sqrt{6\\}[/tex]−3[tex]\sqrt{2}[/tex]

Decimal Form:

102.93174866

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The exponent property that should be applied is the quotient of a power property. Option A

Index form of a number can be defined as the power or exponent raised to a number or variable.

It is also known as the standard form of a number.

The quotient of a power property states that the power of a quotient is equivalent to the quotient that is obtained when the numerator and denominator are each raised to a particular power differently, before the division is carried out.

It is used to simplify the problem of division involving exponents.

Given the expression;

3r³b^5/9b

Take the inverse exponent of the divisor

3r³b^5 × b^-1/ 9

Divide the common factors

r³b^5 × b^-1/3

Add the common exponents

r³b^4/3

Thus, the exponent property that should be applied is the quotient of a power property. Option A

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Using the midpoint formula, the coordinates of the midpoint M is: (-1/2, 1).

Using the distance formula, the length of YZ is: 14.3.

The midpoint formula is: M[(x1 + x2)/2, (y1 + y2)/2].

Distant formula is: d = [tex]\sqrt{(y_2 - y_1)^2 + (x_2 - x_1)^2}[/tex].

Given the following:

Y(1,-6) = (x1, y1)

Z(-2,8) = (x2, y2)

Apply the midpoint formula to find the midpoint of YZ:

M(x, y) = [(1 + (-2))/2, (-6 + 8)/2].

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

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

M(-1/2, 1)

Apply the distance formula to find YZ:

YZ = √[(−2−1)² + (8−(−6))²]

YZ = √[(−3)² + (14)²]

YZ = √205

YZ ≈ 14.3 (nearest tenth)

In conclusion:

Using the midpoint formula, the coordinates of the midpoint M is: (-1/2, 1).

Using the distance formula, the length of YZ is: 14.3.

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Answer:

Step-by-step explanation:

Formula: Amount of taxes part time x 1+(amount jumped)

Therefore just do : 765 x 7.12 = $5446.80

Answer:

-2

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

For a given atom, net charge can be determined by looking at how many protons the atom has in its nucleus and how many electrons it has surrounding its nucleus.

More specifically, the atom will have

a positive net charge if it has more protons in its nucleus than electrons surrounding its nucleus

a negative net charge if it has more electrons surrounding its nucleus than protons in its nucleus

no net charge if it has equal numbers of protons and electrons

When an atom carries a positive net charge, it forms a cation, or positively charged ion. Likewise, when an atom carries a negative net charge, it forms an anion, or negatively charged ion.

In your case, the atom is said to contain

eight protons

nine neutrons → they do not influence the net charge of the atom

ten electrons

Now, electrons and protons carry opposite charges. A proton is said to carry a 1+ charge, while an electron is said to carry a 1−.

In your case, you have 8 protons and 10 electrons. This means that the atom will carry a total

2×(1−)=2−

net charge.

Therefore, you are dealing with an anion that carries a 2− net charge, i.e. it has two more electrons than it does protons.

The missing value of direct variation is 10

The direct variation property states that , whenever the division of values of two quantities is a constant value then there is same variation between these two corresponding values. Or we can also say that if the divisible nature of two corresponding values is constant, then one quantity is directly varies with second quantity. That mean if one quantity increase other will also increase and vice versa.

Let say if x and y are two values and k is a constant value, then

According to direct variation

k = y/x or y = k x

In the given question,

Take the order pair (2,5)

As it is an direct variation, we can substitute it

y=k x  

5=k (2)

K=2.5

Now find the direct variation equation

y=k x

Also, k=2.5

Solve this equation for the second pair (4,y)

As, y=2.5 x

   y= 2.5 (4) = 10

Therefore, missing value is 10

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ln (t) = [tex]log_e(t)[/tex] is always true, by the definition of logarithm.

Now,

Hence, ln (t) = [tex]log_e(t)[/tex] is always true, by the definition of logarithm.

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ln 1 is the converted from the expression 2 ln 8-3 ln 4 to a single natural logarithm.

A number's natural logarithm is its logarithm to the base of the transcendental and irrational number e, which is roughly equivalent to 2.718281828459.

Typically, the natural logarithm of x is denoted by the symbols ln x, loge x, or, if the base e is implicit, just log x. When adding parentheses for clarity, the values ln(x), loge(x), or log (x). In order to avoid ambiguity, this is notably done when the argument to the logarithm is not a single symbol.

The power to which e would need to be raised in order to equal x is the natural logarithm of x.

For instance, e2.0149... = 7.5, thus ln 7.5 equals 2.0149.

Since e1 = e, the natural logarithm of e itself, or ln e, is equal to 1, while the natural logarithm of 1 is 0, since e0 = 1.

We need to convert 2 ln 8-3 ln 4 as a single natural logarithm

First apply power property

⇒ ln 8² - ln 4³

⇒ ln 64 - ln 64

Now, applying quotient property

⇒ ln [tex]\frac{64}{64}[/tex] = ln 1

Here, we finally converted 2 ln 8-3 ln 4 to a single natural logarithm ln 1

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Answer:

C

Step-by-step explanation:

lets start with the first equation

33*33^7

Since they are not in parentheses, the only one going the power of 7 is the second 33. The first 33 will just have n exponent of one, so you add those together and get 33^8

The next equation is explained like this

(33*33)^7

Since this equation is in parentheses, first you will combine the 33:

(33^2)^7

Then, you will follow power to a power rule, and multiply the 2 and 7 to get this answer:

33^14

Then, find the awnser that matches.

According to  the given equation (e⁰=1) the logarithmic form  log[tex]_e[/tex](1) = 0.

The logarithmic mean is indeed a component of multiple non-negative values that is equal to the respective difference divided by their quotient's logarithm. This computation is useful in heat and mass transfer problems in engineering.

Logarithms depict changes in terms or multiplication: each step in the examples above is 10x larger. Each step in the natural log is "e" (2.71828...) times longer. When dealing with a succession of multiplications, logarithms assist in "counting" them, just as addition does when effects are added.

e⁰=1

= log[tex]_e[/tex]⁰1

the given equation (e⁰=1) the logarithmic form  log[tex]_e[/tex](1) = 0.

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Answer:

I think it's $15 I hope this helps

Answer:

$15

Step-by-step explanation:

If 14 cards cost $6, then 7 cards will cost $3

So 35 cards will cost: $3 x 5 = $15

The expression is simplified to 10x² + 48x + 3 =0

Given the expression as;

[tex]5^(^4^x^+^1^)^(^x^+^2^) + 4. 5^x^(^x^+^1^5^) = 5^-^2^x^2+^2^1^x^-^1[/tex]

We take the numerators have the same base, then we have;

(4x+1)(x+2) + 4(x(x+ 15) = -2x² + 21x - 1

expand the bracket

4x² + 8x + x + 2 + 4(x² + 15x) =  -2x² + 21x - 1

4x² + 8x + x + 2 + 4x² + 60x =  -2x² + 21x - 1

collect like terms

4x² + 4x² + 2x² + 8x + x + 60x - 21x = - 1 - 2

Add or subtract like terms

10x² + 48x = -3

Make into a quadratic equation

10x² + 48x + 3 =0

Thus, the expression is simplified to 10x² + 48x + 3 =0

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Using a linear function, it is found that the least possible number of matches played when four players are left is of 339.

A linear function is modeled according to the following rule:

y = mx + b

In which:

For the situation modeled in this problem, we have that:

Thus the average number of players after n matches is given by:

P(n) = 117 - 1/3m.

The least number of matches for there to be 4 players is found when P(n) = 4, hence:

4 = 117 - 1/3m.

1/3m = 113.

m = 113 x 3

m = 339.

Hence at least 339 matches must be played.

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[tex](\stackrel{x_1}{9}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{-1}~,~\stackrel{y_2}{-1}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-1}-\stackrel{y1}{4}}}{\underset{run} {\underset{x_2}{-1}-\underset{x_1}{9}}} \implies \cfrac{ -5 }{ -10 }\implies \cfrac{1}{2}[/tex]

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{4}=\stackrel{m}{\cfrac{1}{2}}(x-\stackrel{x_1}{9}) \\\\\\ y-4=\cfrac{1}{2}x-\cfrac{9}{2}\implies y=\cfrac{1}{2}x-\cfrac{9}{2}+4\implies y=\cfrac{1}{2}x-\cfrac{1}{2}[/tex]

Answer: -3,6 to graph it you would mark it at -3 intall you reach to 6

Step-by-step explanation: hope this helps

Answer:

Step-by-step explanation:

-21<3x-12            3x-12<6

-12      -12                +12 +12

-33<3x                3x<18

divide 3              divide 3 both sides

both sides          x<6

-11<x

swap the < to >

x>-11

Yes , the given function is an inverse function which is given by  [tex]f^{-1}(y)=\frac{y-2}{\sqrt{2} }[/tex] .

We have given a function [tex]f(x)=x\sqrt{2} -1+3[/tex] .        ....(1)

On simplifying the equation we, get

     [tex]f(x)=x\sqrt{2} +2[/tex]

Let y = f(x)

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

Swap the values of x and y, then the inverse is then

     [tex]x=f^{-1}(y)[/tex]     ...(3)

Comparing equation (2) and (3) , we get

  [tex]f^{-1}(y)=\frac{y-2}{\sqrt{2} }[/tex]

We can check that this is really an inverse function or not

Putting [tex]x=f^{-1}[/tex] in equation (1) , we get

   [tex]f(f^{-1}(y))=\frac{y-2}{\sqrt{2} } \sqrt{2} -1+3\\\\y=y-2+2\\\\y=y[/tex]

 As LHS = RHS  which means inverse function is correct .

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Answer:

-16x+4

Step-by-step explanation:

4 is the only constant term there dont have to change

-4x-12x =-16x

so you get -16x+4

Hey there!

-4x + 4 - 12x

COMBINE the LIKE TERMS

= (-4x - 12x) + (4)

= -4x - 12x + 4

= -16x + 4

Therefore, your answer should be:

-16x + 4

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

180

Step-by-step explanation:

Answer:C

Step-by-step explanation:

its  because the formula gives away the answer in a impecable way

The total number of occasions the dice would land on 1 or 3 is 98.

The probability space associated with a randomly chosen experiment is established by three components: the result space, whose element is an experiment outcome, a collection of events F whose elements represent subsets of, and a probability measure IP assigned towards the elements in F.

As a result, for problems like Cards, Coins, and Dices, it is preferable to record the potential scenarios and determine the individual probabilities of each case before ORing/ANDing them in accordance with the problem demand. If done correctly, this will provide a great solution that will never fail you.

All of the probability will add upto 1.

this give us the equation:

P(1)+0.17 + 0.18 + 0.09 + 0.15 + 0.1 = 1

P(1) + 0.69 = 1

P(1) = 1 - 0.69

   P(1)  = 0.31

We now need to find the probability of 1 or 3

P(1 or 3) = P(1) + P(3)

             = 0.31 + 0.18

             = 0.49

We now use the predicting outcomes formula.

expected = P(1 or 3) x no. of times.

                = 0.49 x 200

                = 98

the total number of times the dice will land on 1 or on 3 = 98.

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I found the graph, the answer should be 25$

a. The type of sequence we have here is a Geometric Progression.

b. The common ratio of the sequence is 7/10.

c. iPhone 10 will cost $83 in 2025.

Given sequence is:  

$1000, $700, $490, $343, $240

a. To determine the type of sequence we find the common ratio between terms:

   700/1000 = 7/10

   490/700 = 7/10

All terms differ by a common ratio hence it is a geometric progression.

b. From above,          

 1000 × 7/10 = 700

 700 × 7/10 = 490

 490 × 7/10 = 343

 343 × 7/10 = 240

Hence, the common ratio of G.P is 7/10.

c. The next terms in the given G.P is:

240 × 7/10 = 168

So, iPhone 10 will cost $168 in 2023.

168 × 7/10 = 118

So, iPhone 10 will cost $118 in 2024.

118 × 7/10 = 83

So, iPhone 10 will cost $83 in 2025.

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The Range of the given function weight is; [4,000 , 5,800]

The range of a function is defined as the set of all possible output values of that function.

We are Given:

Function; W = 6F + 4000

Full amount of fuel = 300 gallons

No amount of fuel = 0 gallons

Thus, the set of all possible input values which is the domain is;

Domain : amount of fuel = [0 , 300]

If F = 0, then we have;

W = 6F + 4,000

W = 6(0) + 4,000

W = 4,000

If F = 300, then we have;

W = 6F + 4,000

W = 6(300) + 4,000

W = 5,800

Thus, we conclude that the Range of weight is; [4,000 , 5,800]

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Complete question is;

The fuel tank of a certain airplane can hold up to 300 gallons of fuel. Let Wbe the total weight(in pounds) Let F be the total amount of fuel in this tank ( in gallons) Suppose that W = 6F +4000 gives W as a function of F

In the given set, 9, 16, 25, 49, 64, 100 are perfect squares.

What is perfect square?

A square number, sometimes known as a perfect square, is an integer that is the square of another integer. It is the result of multiplying another integer by itself.

For the number 9 = 3 [tex]\times[/tex] 3 = 3^2

9 is a perfect square number.

For the number 12 = 3 [tex]\times[/tex] 4

For the number 16 = 4 [tex]\times[/tex] 4 = 4^2

16 is a perfect square number.

For the number 25 = 5 [tex]\times[/tex] 5 = 5^2

25 is a perfect square number.

For the number 32 = 2 [tex]\times[/tex] 2 [tex]\times[/tex] 2 [tex]\times[/tex] 2 [tex]\times[/tex] 2 = 2^5

For the number 49 = 7 [tex]\times[/tex] 7 = 7^2

49 is a perfect square number.

For the number 56 = 7 [tex]\times[/tex] 8 = 7 [tex]\times[/tex] 2^3

For the number 64 = 8 [tex]\times[/tex] 8 = 8^2

64 is a perfect square number.

For the number 100 = 10 [tex]\times[/tex] 10 = 10^2

100 is a perfect square number.

Therefore, in the given set, 9, 16, 25, 49, 64, 100 are perfect squares.

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Answer:

32

Step-by-step explanation:

Since 1 cup is equal to 4 pancakes would need to multiply 8 cups by 4 pancakes (how many you make with one cup) Which will give you 32. You can check by dividing 32 by 8 or 4 and you will get one of the numbers.

Hope that helps, please comment if you need anything else :D

Answer:

43.09

Step-by-step explanation:

Each logarithm as the quotient of two common logarithms is :

[tex]\frac{log\\ 3x}{log \\4}[/tex]

In, mathematics a logarithmic equation is inverse of exponential equation. That means, we can easily convert the logarithmic equation into exponential equation and vice versa. The basic form of the logarithm function can be written as  .

   [tex]log_ax=N[/tex]

where, a is the base of function or equation

           x define expression

Mathematically, if  [tex]a^N=x[/tex]  is an exponential function then, this can be converted to logarithmic function as  [tex]log_ax=N[/tex].

There are many formulas that are given to us for solving several simple and complex problems based on logarithmic functions and logarithmic equations.

Some important formulas of logarithms are :

The given expression is,

log₄3 x

as, [tex]log_bm= \frac{log_cm}{log_cb}[/tex]

therefore ,

log₄3 x =  [tex]\frac{log \ 3x}{log \ 4}[/tex]

Hence,  logarithm as the quotient of two common logarithms is :

[tex]\frac{log\\ 3x}{log \\4}[/tex]

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