Solve for X

[tex]lnx^{2} =-2[/tex]

please show steps

I have the answer,

I just want to know how to do this :)

Answers

Answer 1

Answer:

[tex]x = \pm e^{-1}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of Equality

Algebra I

Solving quadraticsMultiple roots

Algebra II

LogarithmsEuler's number e

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle ln(x^2) = -2[/tex]

Step 2: Solve for x

Raise both sides by e:                    [tex]e^{\displaystyle ln(x^2)} = e^{-2}[/tex]Simplify equation:                           [tex]x^2 = e^{-2}[/tex]Square root both sides:                 [tex]x = \pm e^{-1}[/tex]
Answer 2

Answer:

Step-by-step explanation:

lnx^n=nlnx

[tex]\ln x^2=-2\\2\ln x=-2\\\\\ln x=-1\\\\x>0\\x=e^{-1}\\or~x=\frac{1}{e}[/tex]


Related Questions

Please help me, Evaluate [4 - (5 - 7(6 - 5) + 7)] + 4

Answers

Answer:

3

Step-by-step explanation:

1st step:  (6-5) = 1; you now have:

[4 - 5 - 7(1) + 7)] + 4

2nd step:  7(1) = 7; you now have:

[4 - (5 - 7 + 7)] + 4

3rd step:  5 - 7 + 7 = 5; you now have:

[4 - 5] + 4, which is (-1 + 4) which equals 3

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\textsf{[4 - (5 - 7(6 - 5) + 7)] + 4}[/tex]

[tex]\huge\textsf{6 - 5 = \bf 1}[/tex]

[tex]\huge\textsf{4 - (5 - (7)(1) + 7) + 4}[/tex]

[tex]\huge\textsf{7(1) = \bf 7}[/tex]

[tex]\huge\textsf{4 - (5 - 7 + 7) + 4}[/tex]

[tex]\huge\textsf{5 - 7 = \bf -2}[/tex]

[tex]\huge\textsf{4 - (-2 + 7) + 4}[/tex]

[tex]\huge\textsf{4 - 5 + 4}[/tex]

[tex]\huge\textsf{4 - 5 = \bf -1}[/tex]

[tex]\huge\textsf{-1 + 4}[/tex]

[tex]\huge\textsf{= \bf 3}[/tex]

[tex]\boxed{\boxed{\huge\textsf{{Therefore, your ANSWER is: 3}}}}\huge\checkmark[/tex]

[tex]\huge\textsf{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\huge\boxed{\frak{Amphitrite1040:)}}[/tex]

c = grocery store charges

Tax is 8% added to the charges.

Which expression shows the total charges with tax?

A. 1.8c
B. 1.08c

Answers

B because it is in the 10ths place

The total charge with tax will be 1.08c.

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

Grocery store charges = c

And, Tax is 8% added to the charges.

Now,

Since, Tax is 8% added to the charges.

Hence, The total charge with tax = c + 8% of c

                                                   = c + 8/100 × c

                                                   = c + 0.08c

                                                   = 1.08c

Thus, The total charge with tax = 1.08c.

Learn more about the percent visit:

https://brainly.com/question/24877689

#SPJ2

Pls AWNSER these 4 questions ! Thanks so much ( link ) :)

Answers

Answer:

Slope intercept form is y = mx + b

Step-by-step explanation:

Your welcome

please someone help that all I need I am giving away ten points I really need help

Answers

if you are estimating to ten it would be 530, 10, 4050, 600, 1300, 20 and if you are rounding to the 100s it would be 500, 10, 4100, 600, 1300, 20:)

I NEED THIS ASAP!!!! PLZ HELP!!!!! 25 POINTS!!!

Answers

Answer: B

Step-by-step explanation:

how any 3/4s are in 1/8​

Answers

Answer :

There are 6 1/8 in 3/4

6 1/8s hope this helps

Write an equation of the line with the given slope and y-intercept. slope: -3 y-intercept: -6​

Answers

Answer:

The equation of line with  slope: -3 and y-intercept: -6​ is [tex]\mathbf{y=-3x-6}[/tex]

Step-by-step explanation:

We need to write an equation of the line with the given slope and y-intercept. slope: -3 ,y-intercept: -6​

The general equation for slope-intercept form is: [tex]y=mx+b[/tex]

where m is slope and b is y-intercept.

We are given in the question:

slope: -3 y-intercept: -6​

So, we have slope m = -3 and y-intercept b = -6

Putting values in the slope-intercept form equation:

[tex]y=mx+b\\y=-3x-6[/tex]

So, The equation of line with  slope: -3 and y-intercept: -6​ is [tex]\mathbf{y=-3x-6}[/tex]

Write an equation for the linear function f with values f(6) = -4 and f(9) =-9.

Answers

For the first 1 is 0.6 because 2 divided by 3, and for the second 1 the answer is -1

HELPPO ME PLEASEE!!!!!!

Answers

Answer:

Here,

x + 25° + 3x + 95° + 80°=360° (Sum of angles of a quadrilateral is 360°)

or,x+3x + 25° + 95° + 80° =360°

or,4x + 200 = 360°

or,4x = 360 - 200

or,4x = 160

or,x = 160÷4

or,x = 40

Now,

Angle K = (x + 25)° = 40 + 25° = 65°

Angle L = 3x° = 3 × 40° = 120°

NEED HELP ASAP YOU WILL GET BRAINLIST.

Answers

Answer:

1 -90 degrees

2-8in

3-16in

Step-by-step explanation:

1. 90 degrees

2. MB=8 inches

3. AC=16 inches

HEYYY!! Who can help me?? .. (I’m kinda slow lol)

Answers

Answer:

The answer should be A

Step-by-step explanation:

y=3x+2

First, check the y-intercept, which is 2 in this case. Only A, B, and D crosses the y-axis at 2.

Next, check the slope (I didn't calculate every one of the slopes)

the slope, from the equation is 3, so the graph should be positive (left to right always)

Only graph A has a positive slope and a y-intercept of 2.

At a coffee shop 55% of customers buy a coffee drink, 30% buy food, and 25% buy both coffee and food. What is the probability that a randomly chosen customer by either a coffee drink or food?

Answers

Answer:

85%

Step-by-step explanation:

with OR (as opposed to AND), you add probabilitites

with AND, you multiply them

P(coffee OR food) = .55 + .30 = .85

What is the y-coordinate in the solution for the system of linear equations below?
5х-2y=4
3x-4y=-6


у = 2
у = - 2
у = 3
у = - 3

Answers

Answer: 3

Step-by-step explanation:

The coordinate answer to the system of equations is (2, 3), which means that the x value is 2, and the y value is 3

PLEASEEEEEEEEEEEE HELPPPPP BRAINLIEST

Answers

Answer:

A≈527.79

Step-by-step explanation:

A=2πrh+2πr2

Brainly plss

This so easy search up surface calculator

What is the OUTPUT for this equation if the INPUT is 20?

y = 2x

Answers

It should be 40







Mark be as brainliest if right plz

A rectangle has a length of 9 and a width of 7. Find the length of the diagonal. (Hint: Use
Pythagorean theorem and draw a picture!)
63
72
130
V145

Answers

The answer is:
c = 11.40175425
or
c = 11.4

diagram and Pythagorean :

Use the rules of significant figures to simplify the following expression: 47.2 - 6

Answers

Answer:

41.2

Step-by-step explanation:

someone help pls asap

Answers

Answer:

[tex](g - f)(x) = log(x-3)- \sqrt[3]{12x +1} + 2[/tex]

Step-by-step explanation:

Given

[tex]f(x) = \sqrt[3]{12x +1} + 4[/tex]

[tex]g(x) = log(x-3)+6[/tex]

Required

Determine (g - f)(x)

In functions:

[tex](g - f)(x) = g(x) - f(x)[/tex]

So, we have:

[tex](g - f)(x) = log(x-3)+6 - (\sqrt[3]{12x +1} + 4)[/tex]

Open bracket

[tex](g - f)(x) = log(x-3)+6 - \sqrt[3]{12x +1} - 4[/tex]

Collect Like Terms

[tex](g - f)(x) = log(x-3)- \sqrt[3]{12x +1} - 4+6[/tex]

[tex](g - f)(x) = log(x-3)- \sqrt[3]{12x +1} + 2[/tex]

Answer:

[tex]→(g - f)(x) = g(x) - f(x) \\ → (log(x - 3) + 6) - (\sqrt[3]{12x + 1} + 4) \\→ log(x - 3) + 6 - \sqrt[3]{12x + 1} - 4 \\→\boxed{ log(x - 3) - \sqrt[3]{12x + 1} + 2}✓[/tex]

D. is the right answer.

A fish is swimming at a constant rate toward the ocean floor. The equation y = -7x - 3 can be used to represent this situation, where y is the depth of the fish in meters below sea level and x is the number of seconds the fish has been swimming.

Answers

Complete question :

A fish is swimming at a constant rate toward the ocean floor. The equation y = -7x - 3 can be used to represent this situation, where y is the depth of the fish in meters below sea level and x is the number of seconds the fish has been swimming

Which statement best describes the depth of the fish

From a starting position of 7 meters below sea level, the fish is descending 3 meters per second.

From a starting position of 7 meters below sea level, the fish is ascending 3 meters per second.

From a starting position of 3 meters below sea level, the fish is descending 7 meters per second.

From a starting position of 3 meters below sea level, the fish is ascending 7 meters per second.

Answer:

From a starting position of 3 meters below sea level, the fish is descending 7 meters per second.

Step-by-step explanation:

Given the equation :

y = - 7x - 3

y = depth of fish in meters ; x = Number of seconds fish has been swimming

From the equation ; which is written according to the slope - intercept equation, ; y = mx + c

The slope, m = - 7 is the rate of change in y per unit of x

c = intercept, constant, value of y when x = 0

Hence, the true statement in the equation is :

-7 represents descent and meams fish descents at a rate of 7 m per second

At x = 0, the fish is at a depth of 3 m

WILL MARK YOU BRAINLIEST

Answers

(8)2+(x)2=(10)264+x2=100x2=100-64x2=36x=6BE = 6hope it helps..stay blessed...thank you....

x/12 + 1/3 =-5/3
What is the answer

Answers

Answer:

no

Step-by-step explanation:

no

Answer: x = -24

Step-by-step explanation:

1. (12) x/12 + (12) 1/3 = (12) -5/3 (multiply both sides of the equation by 12)

2. x + 4 = -20

3. x = -20 - 4 (move the constant to the right by subtracting 4 on both sides)

4. x = -20 - 4

5. x = -24 (add the numbers together)

help! giving out extra points and brainlist ☀️

Answers

Slope is: 2/10x
Y-intercept is: (0,2)
Equation: y=2/10x+2

Answer:

Slope is: 2/10x

Y-intercept is: (0,2)

Equation: y=2/10x+2

Step-by-step explanation:

OK

please marking brainlist 3+9y+2=

Answers

Answer:

It’s 14 due to the formules used

Damon treated his sister to lunch while visiting her in Weston. Thier lunch cost $40, and the sales tax in Weston is 15%. If Damon left a 20% tip on the $40, how much in total did he pay?

Answers

Given:

Cost of lunch = $40

Rate of sales tax = 15%

Rate of tip = 20% on $40.

To find:

The amount Damon pay.

Solution:

We have,

Cost of lunch = $40

Rate of sales tax = 15%

[tex]\text{Sales tax}=\dfrac{15}{100}\times 40[/tex]

[tex]\text{Sales tax}=6[/tex]

Rate of tip = 20% on $40

[tex]\text{Tip}=\dfrac{20}{100}\times 40[/tex]

[tex]\text{Tip}=8[/tex]

Now,

Total amount = Amount + Sales tax + Tip

                      = [tex]40+6+8[/tex]

                      = [tex]54[/tex]

Therefore, Damon pays total $54.

NEED HELP IMMEDIATELY 80 students in 7th grade 150 students in 8th grade She found that 80% of the 7th graders like country music, while only 60% of the 8th graders like it. Which grade has more students who like country music? The number of 7th graders that like country music are students. The number of 8th graders that like country music are students.

Answers

Answer:

48

Step-by-step explanation:

80 over 100*150

80 divided by 100=0.8 *150=1208student

0.8 *60 = 48

Find the solution set of the inequality
Can you help please?

12-6x > 24

Answers

Answer:

x < -2

Step-by-step explanation:

Hey there!

The answer to your question is [tex]x < -2[/tex]

Tip: Remember to flip the inequality signs when you multiply/divide by a negative number!

[tex]12 - 6x > 24[/tex]

[tex]-6x > 12[/tex]           (Subtract 12 from both sides)

[tex]x < -2[/tex]              (Divide both sides by -6)

Hope it helps and have a great day!

Which expression is equivalent to 13 - (-21)?
Choose 1 answers
А
13 +21
B
-21 - 13
-13 +21
D
-21 +13
HURRY

Answers

Answer is 13+21 , two negatives make a positive as a result the answer is A

Someone help me please! I have to turn this in 35 minutes

Answers

take a picture of the whole problem dude

Answer:

I don't remember this well but I can tell you that they are corresponding angles. When there is a line that cuts two that are vertical and the angles are on the same side, they are as you see them, corresponding.

Please help, pic attached!

Answers

Answer:

(y − 9) (y − 2)

Step-by-step explanation:

Factor  y^2 − 11y + 18 using the AC method.

(y − 9) (y − 2)

The “AC” method or factoring by grouping is a technique used to factor trinomials. A trinomial is a mathematical expression that consists of three terms.

City J is between City K and City L. You know the round-trip distance from City K to City L is
548 miles and the round-trip distance from City K to City J is 326 miles. Find the distance
between City J and City L. Justify your answer.

Answers

Answer:

JL is 111 miles

Step-by-step explanation:

When we talk of round trips, we mean the distance going plus the distance coming

To get the actual distance between the two places, we need to divide by 2

K to L is round trip 548 miles

K to L distance is 548/2 = 274 miles

K to J round trip is 326 miles

K to J distance is 326/2 = 163 miles

From what we have ;

KL = KJ + JL

274 = 163 + JL

JL = 274-163

JL = 111 miles

To justify our answer, we can see that J is between K and L

if we added the distance KJ and JL, we should get the distance KL

from the calculations we have made, we can see that this is correct and our answer is justified

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