1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zigmanuir [339]
3 years ago
15

Solve for X

Mathematics
2 answers:
tigry1 [53]3 years ago
7 0

Answer:

x = \pm e^{-1}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

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

<u>Algebra I</u>

  • Solving quadratics
  • Multiple roots

<u>Algebra II</u>

  • Logarithms
  • Euler's number e

Step-by-step explanation:

<u>Step 1: Define</u>

\displaystyle ln(x^2) = -2

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Raise both sides by e:                    e^{\displaystyle ln(x^2)} = e^{-2}
  2. Simplify equation:                           x^2 = e^{-2}
  3. Square root both sides:                 x = \pm e^{-1}
SashulF [63]3 years ago
3 0

Answer:

Step-by-step explanation:

lnx^n=nlnx

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

You might be interested in
What is The area of this trapezoid?
Dennis_Churaev [7]

Answer:

24

Step-by-step explanation:

area of regualr trapezoid = 1/2 ( sum of parallel sides )( height)

                                         = ( 0.5)(8+4)(4 ) =24

3 0
3 years ago
A person who is 6ft tall walks away from a streetlight. When the person is 15 feet away from the light, the tip of his shadow is
Citrus2011 [14]
We essentially have a ratio here:
\frac{shadow}{actual}

Since we know the ratio is going to stay constant at \frac{5}{6}, we can use this to find the height of the lamp along with the information that the total distance from the lamp to the tip of his shadow is 20:
\frac{5}{6}=\frac{20}{h}
5h=120
h=24
5 0
3 years ago
Please help ik it’s a lottt but I’m really confused!
Juli2301 [7.4K]

Answer:

Question number 13 is 18

8 0
2 years ago
Read 2 more answers
Mr. Garza's family is attending the local soccer game. He has 30 to spend on food and drinks . The cost of chips is $2 and the c
enyata [817]

Answer:

$6

Step-by-step explanation:

let x and y be the number of chip and pretzel bags respectively  : 4x%2B2y%3 C=20 : if x=1 then 4%281%29%2B2y%3C=20--->{{2y<=16}}}--->y%3C=8  : if x=3 then 4%283%29%2B2y%3C=20--->{{2y<=8}}}--->y%3C=4  : so chips 1 and pretzels 8  : chips 3 and pretzels 4.

4 0
3 years ago
A railroad track rises 30 feet for every 400 feet of track. What is the measure of the angle of elevation of the track?
gtnhenbr [62]

Answer:

Step-by-step explanation:

Rising 30 feet for every 400 feet of track is not a very large angle of elevation.  We set this up as a right triangle to use right triangle trig to solve for the missing angle.  The height is 30 and the hypotenuse is 400.  The height is the side opposite the angle in question, and the hypotenuse is the hypotenuse! This is the sin ratio.  Setting up the ratio using our info:

sin\theta=\frac{30}{400}

When you are looking for a missing angle measure, as we are here, use the 2nd-->sin buttons to find the inverse of sin, which looks like this:

sin^{-1}(

Enter in the fraction 30/400 after the parenthesis and then hit enter to get the angle measure of 4.3 degrees.

3 0
3 years ago
Other questions:
  • Knowing that sin 30º = 1/2 what is a?​
    15·1 answer
  • Sylvester plans to rent a car to tour the West Coast. The cost of the rental is $53 per day. The cost of the deposit is $99 for
    7·2 answers
  • Can you help me solve this?​
    7·2 answers
  • Hellllllllllpppppppppppppppppp Solve for t. −5t≥70
    8·2 answers
  • · Three arithmetic means between 18 and 92.​
    12·1 answer
  • 12 obreros se demoran 3 días para realizar un trabajo, cuántos días se demorarán si se tienen la mitad de 8 obreros
    10·1 answer
  • James jogged around the track 0.68 hours at an average speed 28.9 miles per hour how far did he jog?
    5·1 answer
  • Which expression is not equivalent to 8 + (n - 4)
    12·2 answers
  • Everyone if you can help that would be great
    14·1 answer
  • HELP!!!! Match the following.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!