Describe and correct the error made in solving the equation.

Answers

Answer 1

The error is due to different bases of logarithmic value on both sides.

What is logarithmic equation ?

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_{a}x[/tex] .

where, a is the base of function or equation

           x = expression

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

[tex]log a + log b = log a.b[/tex][tex]log a - log b = log \frac{a}{b}[/tex][tex]log a^x = x loga[/tex][tex]log_aa=1[/tex][tex]log_a1=0[/tex]

In the question,

the error is due to different bases on both the sides.

correct solution is:

[tex]log_2x = 2log_39\\log _2x=log_39^ 2\\log_2x=log_33^4\\log_2x=4log_33\\log_2x=4\\x=16[/tex]

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The complete question is :

Describe and correct the error made in solving the equation.

[tex]log_2x = 2log_39\\log _2x=log_39^ 2\\x=9^2\\x=81[/tex]


Related Questions


Find each product or quotient. √6 / 3√36

Answers

The given expression can be solved by finding the square root of the terms if possible and expressing the terms in the simplest form.

The square root of a number is the factor (number) that can be multiplied by itself to get that number (within the square root sign). Finding the square root of a number can be seen as the opposite of squaring a number. In the general form, √a*a=a.

In the given expression, the numerator √6 cannot be further simplified.

√6=√2*3

We cannot take square root as the number is not multiplying itself.

In the denominator √36 can be further simplified.

√36=√6*6=6

We can take square root as the number is multiplying itself.

Hence,

√6/3√36=√6/(3*6)=√6/18

The product or quotient of √6/3√36 is √6/18

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(0.067×42.1)÷(17.4-4.19) correct to 1 significant figure then estimate the equation

Answers

Step-by-step explanation:

You could use a calculator to make it simple

(0.067 × 42.1) ÷ (17.4 - 4.19). to 1s.f

=(2.8207) ÷ (13.21)

= 0.213527 to 1s.f

= 0.2

*you could also check using your own calculator

*let me know if you want me to expand it if you don't have a calculator

A farmer, Sarah, has 54 hectares of hay to harvest. She hires a harvester
at £1200 a day. If Sarah can harvest 12 ha per day, what will it cost her to
harvest this hay?

Answers

Answer:

the harvester costs 1200 a day.

54 hectares / 12 per day = 4.5 days.

Step-by-step explanation:

if she can rent the harvester for half a day, it will cost her 4.5 * 1200 = 5400.

if she can only rent the harvest for full days, it will cost her 5 * 1200 = 6000.

Graph y=2
please I need help

Answers

Answer:

I used desmos graphing calculator

Step-by-step explanation:

Your friend is 4 1/3 feet tall. you must be at least 4 3/4 feet tall to drive a bumper car. write and solve an inequality to represent how much taller your friend must be to drive a bumper car.

Answers

The inequality to represent how much taller he must be to drive a bumper car is written as 4 1/3 + x ≥ 4 3/4 and he must be 0.42 feet taller or more to drive a bumper car.

Inequality can be defined as a relationship between two numbers or algebraic expressions in which one is either greater than, greater than or equal to, less than or equal to the other.

As the height must be at least 4 3/4 or more to drive a bumper car, an inequality equation can be given as,

4 1/3 + x ≥ 4 3/4

The sign "≥" represents that the height must be equal to or greater than 4 3/4.

Solving for x,

x ≥ 4 3/4 - 4 1/3

x ≥  4.75 - 4.33

x ≥  0.42

Therefore the friend must be at least 0.42 feet taller or more to ride the bumper car.

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Show this problem using a tape diagram and then solve:


304 / 19

i need it in 10:00

Answers

Answer is 16
Good luck

The 1s in 110 please help 5th grade

Answers

Answer:

100 and 10

Step-by-step explanation:

Four times the sum of a number and two is equal to twice the number

Answers

Answer:

number is - 4

Step-by-step explanation:

let the number be n then 4 times the sum of the number and 2 is 4(n + 2)

4(n + 2) = 2n

4n + 8 = 2n ( subtract 2n from both sides )

2n + 8 = 0 ( subtract 8 from both sides )

2n = - 8 ( divide both sides by 2 )

n = - 4

the number is - 4

[tex]\textsf{Hi Brainy User, I'm Here to Help you!}[/tex]

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

[tex]\textsf{Let the number be t.}[/tex]

[tex]\textsf{The Sum means adding two numbers together.}[/tex]

[tex]\textsf{Then,}[/tex]

[tex]\textsf{4 times the sum of a number and 2 = 4 times t+2 = 4(t+2).}[/tex]

[tex]\textsf{Remember to write the parentheses when you're multiplying something times}\\\textsf{a sum or a difference.}[/tex]

[tex]\textsf{You know how to write "is equal to", don't you? It's =}[/tex]

[tex]\therefore\\\textsf{4(t+2)=}[/tex]

[tex]\textsf{Next, twice the number is written as 2t.}[/tex]

[tex]\textsf{\textbf{Our expression looks like this:}}[/tex]

[tex]\Large\boldsymbol{\rm{4(t+2)=2t}}[/tex]

[tex]\textsf{Now let's find the number: }[/tex]

[tex]\Large\begin{gathered} \sf{4(t+2)=2t}\\\sf{4t+8=2t}\\\sf{4t-2t=-8}\\\sf{2t=-8}\\\sf{t=-4} \end{gathered}[/tex]

[tex]\ddot\smile[/tex]

[tex]\Large\overbrace{\underbrace{\boldsymbol{\rm{Reflection - RoSe}}}}^\star_\star[/tex]

A truck that can carry no more than 6300 lb is being used to transport refrigerators and upright pianos. Each refrigerator weighs 300 lb and each piano weighs 425 lb. Write and graph an inequality to show how many refrigerators and how many pianos the truck could carry. Will 11 refrigerators and 8 pianos overload the​ truck? Explain.

Answers

The inequality for the load in truck is 300r + 425p ≤ 6300.

11 refrigerators and 8 pianos will overload the truck.

Given,

The carrying capacity of truck = 6300 lbs

The truck is used to transport refrigerators and pianos.

The weight of 1 refrigerator = 300 lb

The weight of 1 piano = 425 lb

We have to find an inequality which shows the number of refrigerators and pianos could the truck carry.

Let's take the number of refrigerators as r and number of pianos as p.

We can equate by using their weights:

That is,

300r + 425p ≤ 6300

Next, we need to determine that, will 11 refrigerators and 8 pianos overload the truck:

We have to multiply the given number with their weights:

That is,

(300 × 11) + (425 × 8) = 3300 + 3400 = 6700

6700 is greater than 6300.

So, we can conclude that 11 refrigerators and 8 pianos will overload the truck.

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Han and Clare were running laps around the track. The coach recorded their times at the end of laps 2,4,6, and 8.


Han's run:


Distance (laps) Time (minutes) Minutes Per Lap

2 laps 4 minutes

4 laps 9 minutes

6 laps 15 minutes

8 laps 23 minutes


How many minutes are per lap?

Answers

Answer: 2 laps four minutes

explanation:

HELP MEEEEE ANYONE!!!

Answers

The equation of the line in slope intercept form is y = 1 / 6 x - 11

How to represent equation in slope intercept form?

The equation of a line can be represented in a slope intercept form as follows:

y = mx + b

where

m = slopeb = y-intercept

Therefore, the equation of the line is parallel to y =  1 / 6 x + 7 .

This means the equation of the line have the same slope with  y =  1 / 6 x + 7 .

The equation passes through (12, -9).

Therefore, let's find b

y = 1 /6 x + b

-9 = 1 / 6 (12) + b

b = -9 - 2

b = - 11

Therefore, the equation of the line in slope intercept form is y = 1 / 6 x - 11

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What is the slope of the line that passes through the points 9,-1 and 4,11 simplest form

Answers

Answer:

slope = - [tex]\frac{12}{5}[/tex]

Step-by-step explanation:

calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (9, - 1 ) and (x₂, y₂ ) = (4, 11 )

m = [tex]\frac{11-(-1)}{4-9}[/tex] = [tex]\frac{11+1}{-5}[/tex] = - [tex]\frac{12}{5}[/tex]

i will give brainliest and thanks to whoever answers pls and thx!!

Answers

Answer: 4r + 4s - 16s

Step-by-step explanation:

r +3r = 4r

-10s -6s =16s

2t + 2t =4t

key when you see the word perimeter than think of addition

please help asap only question i don’t know

Answers

Answer:

Find out the number of video games that Jasmine can buy with her savings .

To proof

Let us assume that the number of video games Jasmine can buy  be x .

As given

Jasmine wants to use her savings of $1128 to buy video games and music CDs.

The total price of the music CDs she bought was $72. The video games cost $43 each.

Than the equation becomes

72 + 43× x = 1128

simplify

72 + 43x = 1128

43x = 1128 - 72

43x = 1056

x = 24.6 (approx)

Take

x = 24

Therefore the maximum number of video games that Jasmine can buy with her savings be 24 .

Step-by-step explanation:

The maximum number of video games that Jasmine can buy with her savings is... 24 ✅

Allow me to explain...

First, subtract $72 from $1,128

1,128 - 72 = 1,056

       ⬆️         ⬆️

Then, divide $1,056 by $43

1,056 ÷ 43 = 24.5581...

        ⬆️            ⬆️

Coming to the conclusion that Jasmine only has enough money for a maximum of 24 video games. ✅

I hope this was helpful! (✿◠‿◠)

Jackie babysat 10 1/2 hours over a 3 day period. if she babysat the same amount each day, how many hours did she babysit each day?

Answers

Answer:

3.5 hours

Step-by-step explanation:

divide 10.5 by 3 since there is 3 days to get 3.5

Let me know if this was helpful

Quadrilateral MNOP below is a rectangle, and ∠M = 3x + 6. What is the value of x?

Answers

The value of x would be 28 and the measure of angle M will be 90 degrees.

What is a rectangle?

That parallelogram in which adjacent sides are perpendicular to each other is called a rectangle.

A rectangle is always a parallelogram and a quadrilateral but reverse statement may or may not be true.

WE have been given the Quadrilateral MNOP is a rectangle, and ∠M = 3x + 6.

WE know that interior angle of the rectangle are 90 degrees each.

Therefore,

∠M = 3x + 6 = 90

3x + 6 = 90

3x = 90 - 6

3x = 84

x = 84/3

x = 28

Hence, the value of x would be 28 and the measure of angle M will be 90 degrees.

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A certain animated movie earned
$
1.1

1
0
9
$1.1⋅10
9
dollar sign, 1, point, 1, dot, 10, start superscript, 9, end superscript in revenues at the box office. The movie lasts
9.1

1
0
1
9.1⋅10
1
9, point, 1, dot, 10, start superscript, 1, end superscript minutes.
How much revenue was earned per minute of the movie?

Answers

The movie earned $1.21×10^7 in revenue per minute.

Revenue was earned per minute

we get,

we can divide the total revenue by the number of minutes.

When numbers are in scientific notation, we can divide in two separate steps.

First, let's divide the powers of ten, then we will divide the other numbers.

Because of the properties of exponents, we can subtract the exponent in the denominator from the exponent in the numerator to divide the powers of 10.

Now we can divide the numbers that are not powers of 10.

The problem asks us to round to two decimal places, so our final answer will have three digits including the ones place. Let's round

so the final answer will have three digits.

first number is 1.109 and

second number is .109

Now let's put the two results back together.

we get, $1.21

we get number after scientific notation

The movie earned $1.21×10^7 in revenue per minute.

Scientific Notation is the expression of a number n in the form

a∗10b

where a is an integer such that

1≤|a|<10

and b is an integer too.

Multiplication: To multiply numbers in scientific notation, multiply the decimal numbers. Then add the exponents of the powers of 10. Place the new power of 10 with the decimal in scientific notation form. If your decimal number is greater than 10, count the number of times the decimal moves to the left, and add this number to the exponent.

Division: To divide numbers in scientific notation, first divide the decimal numbers. Then subtract the exponents of your power of 10. Place the new power of 10 with the decimal in scientific notation form. If the resulting decimal number is less than 1, move the decimal point to the right and decrease the exponent by the number of places that the decimal point moved.

Large Numbers in Standard Form

n=101325=1.01325∗105

(Move the decimal point 5 places to the right)

Express Small Numbers in Standard Form

n=0.00092=9.2∗10−4

(Move the decimal point 4 places to the left.)

Multiplication:

(2.3∗104)∗(6.6∗107)

First Step -

2.3∗6.6=16.38

Second Step -

104∗107=1011

Because the new decimal number in step one is greater than 10, count the number of places the decimal moves to put the number between 1 and 10. Add this number to the exponent. In this case, the decimal point moves one place, so add 1 to the exponent.

1.638∗1012

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Answer:1.21*10^7

Step-by-step explanation:

i did kahn academy and this was the correct answer:)


Suppose that x and y vary inversely. Write a function that models the inverse variation.
x=-52 when y=1/4

Answers

The required function based on the given conditions is y = 13 / x.

What is a function?

A function is defined as an expression or rule that specifies the relationship between two variables or objects, out of which one is dependent and the other is an independent variable. The image of each and every element is unique.

Examining the function which satisfies the given conditions

Given values of x = 52 and y = ¼

Consider a function such that x and y vary inversely with each other,

y = k / x, where k is a constant         —-- 1

Putting values of c and y, we get,

¼ = k / 52

52 / 4 = k

k = 13

Put the value of k in equation 1, we get,

y = 13 / x

Hence, the required function is given by, y = 13 / x.

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What polynomial must be added to -5c² - 3+ 4c in order to get a sum of -2c²-c+1?​

Answers

Answer: 3c^2  +4 -5c

Step-by-step explanation:

-2c^2 -c +1 -(-5c^2 -3 +4c)

3c^2  +4 -5c

Fencing costs $25.80 per yard. How much does it cost to enclose two adjacent rectangular pastures?

X: 50 5/8 Y: 30 2/9

Answers

What the person said above I think

Solve 4x + 7 = 3
HELPPPPPP

Answers

Answer:

[tex] \sf \large \: x = -1[/tex]

Step-by-step explanation:

4x + 7 = 3

Substract 7 from both sides

4x + 7 - 7 = 3 - 7

4x = -4

Divide both sides by the coefficient of x

4x/4 = -4/4

calculate

x = -1

4x + 7 -7 = 3 - 7
4x= -4
4x/4 = -4/4
x= -1

Is 2 3/4 greater or less then 2 4/6

Answers

Answer:

NOT GREATER!!!

Step-by-step explanation:

0.6667 is NOT greater than 0.6667 which also means that 2/3 is NOT greater than 4/6.

Use the proportion d / 180° = r radians/πradians . Find the equivalent degree measure or radian measure. 7π / 2 radians

Answers

Answer:

the answer is 90⁰ ok that

Using the quadratic formula, solve 0 = 2x²-14x +9 Give each of your answers to 2 d.p.
help please ​

Answers

Answer:

x=6.28 0r 0.72

Step-by-step explanation:

The explanation is in the image

7 1/2 divided by 2 5/8

Answers

Answer: 2 6/7

Step-by-step explanation:

Answer:

Answer is 75/32

Step-by-step explanation:

Convert the mixed number to an improper fraction so 7 1/2 changes to 15/2 divided by 2x5/8 but then you change the 2 to 1/2 so 15/2 x 1/2 x 5/8

then you multiply the fractions then you get 75/32


Fill in the blanks.
There are two types of exponential functions. For _______ , as the value of y increases, the value of y decreases, approaching zero. For ________, as the value of {x} increases, the value of y increases.

Answers

There are two types of exponential functions. For x or y increases as the value of y increases, the value of y decreases, approaching zero. For

approaching zero as the value of {x} increases, the value of y increases.

Which two forms of exponential functions are there?

Exponential growth and decay are the two different kinds of exponential functions. When b > 1, the function f (x) = bx represents exponential development. If 0 b 1, then the function f (x) = bx depicts exponential decay.

What does Y mean in the exponential growth equation?

The variables y, a, r, and t represent the ultimate amount, growth rate, and decay rate, respectively, in the exponential growth and decay formulas. Growth exponential: y = a (1 + r)t. Decay exponential: y = a (1 r)t. A city's population is growing at a rate of 4% per year.

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An 8-yard roll of tape costs $3.04. What is the unit price?

Answers

The unit price for the tape is $0.38 or 38 cents per yard.

The unit price is the price of one unit of measurement for a particular substance.

The unit price of a substance is used to calculate the total cost of a particular substance or the cost of a fraction of a substance.

Unit price is calculated by dividing the total cost by the total quantity of the product.

The given price of the product is $3.04 for a 8-yard roll of tape.

So to find the unit price we divide the total cost by the total length to find the cost of 1 yard of tape.

Unit price = $3.04 ÷ 8

or, Unit price = $ 0.38

Therefore the unit price of the tape is $0.38 or 38 cents.

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90+x+67+35=180
Step by step please if someone could help

Answers

Answer:

[tex] \sf{x=−12}[/tex]

Step-by-step explanation:

Let's solve your equation step-by-step.

90+x+67+35=180

Step 1: Simplify both sides of the equation.

90+x+67+35=180

(x)+(90+67+35)=180(Combine Like Terms)

x+192=180

x+192=180

Step 2: Subtract 192 from both sides.

x+192−192=180−192

x=−12

Assuming a linear relationship, find the missing value in the table below.
y
x
1
2
3
4
5
4
7
10
13

Answers

Based on the constant average rates of change. , the missing value in the table is 16

What are linear relationships?

Linear relationships are relationships that have constant average rates of change.

Note that the constant average rates of change can also be regarded as the slope or the gradient

How to determine the missing value in the table?

The table of values is given as

x    y

1     4

2     7

3     10

4     13

5

The constant average rates of change of linear relationships imply that:

As the x values constantly change by a value, the y values constantly change by another value (could be the same value)

On the given table, we can see the trend to be;

As x increase by 1, y increase by 3

So, the missing y value is

y = 13 + 3

Evaluate the sum

y = 16

Hence, the missing value in the table is 16

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Solve. Check for extraneous solutions. √x+1 + √2 x = √5 x+3

Answers

The extraneous solution is √2 and -√2

Extraneous solutions refer to the ones which when found the roots appear to be right, but are not exactly valid roots.

We have to check, whether the given solution is an extraneous one or not. We have to solve this equation,

√x+1 + √2 x = √5 x+3

or, √x + √2 x - √5 x = 3 - 1

or, - √2 x = 2Now, we have to square both sides,

∴ 2x² = 4

or, x² = 4/2

or, x² = 2

or, x = + √2 and - √2

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larry is a tax accountant and sheila is a hairdresser. larry prepares sheila's tax return for free and sheila agrees to style larry's hair six times for free in return for the tax return. the value of the tax return is approximately $300 and the hair styling work is approximately $300. a. how much of the $300 is includable income to larry? is income to larry because there gross income exception in the tax law for "barter" income. b. how much, if any, of the $300 is includable income to sheila? make sentences using 3 words Arturo takes a leaf cutting from a plant and puts in a pot of soil. The leaf grows into a new plant that is genetically identical to the original plant. This is an example of which type of reproduction As you were taking lettuce in the grocery store, you were surprised when water sprinklers suddenly went on, spraying fresh water on the produce. When you got back home, you immersed the lettuce in a salt solution, and within several minutes they became limp and soft. What are the explanations for the spraying procedure in the store, and your observation at home?. a group of students prepare for a robotic competition and build a robot that can launch large spheres of mass m in the horizontal direction with a variable speed and from a variable vertical position and a fixed horizontal position x Which goal is an example of a measurable goal? A. Emmanuel wants a career related to English literature. B. Gabrielle wants recognition for her academic skills. C. Lee wants to make ten calls to clients by the end of the day. D. Penelope wants a job at a good company. a golfer hits a golf ball with an initial velocity of 250.00 ft/s at an angle of 25 with the horizontal. knowing that the fairway slopes downward at an average angle of 5, determine the distance d between the golfer and point b where the ball first lands. the nurse discovers a new prescription for rho(d) immune globulin for a client who is about to undergo a diagnostic procedure. the nurse will administer the rho(d) immune globulin after which procedure? A car goes from 30 m/s to 10 m/s how long does it take with a acceleration of -2 A passenger elevator travels from the first floor to the 60th floor, a distance of 210m, in 35s. What is the elevators speed? AFRICAN AMERICAN HISTORYBy 1820, how many free African Americans were there in the nation?233,00059,00016,000460,000 Which details serve as evidence that Boadicea is a warrior archetype?check all that apply How much force is needed to accelerate a 1400 kg car from rest to 14 meters/sec in 7 seconds? How do you graph -3x+4y Fill in the blank.In words, the logarithm of x is How does this passage define the traditional roles of men and women? The nitrogen cycle is an example of a(n) Choose...(1) cycle. Its processes include the conversion of atmospheric nitrogen into ammonia, which is called (2) Choose... . Nitrogen is returned to the atmosphere in the process of (3)Word banks for (1) decomposer energy biogeochemical waterWord banks for (2)Photosynthesis Denitrification Nitrogen Limitation Nitrogen Fixation Word banks for (3) Denitrification Nitrogen Fixation Nitrogen Limitation Nutrient Return congressmen are protected from arrest while in session except under what three conditions 3) From the electrical conductivity,' section, compare the extent of conductivity of the mixturecontaining equal volumes of acetic acid and aqueous ammonia to the conductivity of acetic acidand ammonia alone. Explain. By measuring the amount of carbon- 14 in an object, a palaeontologist can determine its approximate age. The amount of carbon-14 in an object is given by, y=a e.t, where a is the amount of carbon- 14 originally in the object, and t is the age of the object in years. In 2003, a bone believed to be from a dire wolf was found at the La Brea Tar Pits. The bone contains 14% of its original carbon-14. How old is the bone?a. What numbers should you substitute for y and t ?