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
alex41 [277]
3 years ago
15

243^0.2x=81^x+5Could you please help me with the steps to this problem?​

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
3 0

Answer:

-20/3

Step-by-step explanation:

First simplify the left side of the equation

243^(1/5x)= (243^1/5)^x

                =(\sqrt[5]{243} )^x

                = 3^x

Now that the left side is simplified,  let's move to the right side

81^(x+5)=( 3^{4})^(x+5) simplify 81 to base 3^4

             =x^{4(x+5) use the product of powers property to multiply the exponents together

             =x^{4x+20

With both sides simplified, let's rewrite the equation, this time in simplified terms

3^{x}=3^{4x+20}            

x=4x+20    because both the bases are same, their exponential value must also be equal

-3x=20 solve the algebraic equation for x

  x=-\frac{20}{3}

You might be interested in
3. Simplity: 1-7721<br>a. -772<br>b. - 7<br>c. 772<br>d. 72​
Tems11 [23]

Answer:

1 - 7721 = -7220  so i don't really see the answer in the choices you gave.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is one true mathematical statement involving exponents I could make out of 5, 25, and 2?
pentagon [3]

Answer:

5^2 x 2^0 = 25 or 5^2 = 25

Step-by-step explanation:

5^2 = 25

2^0 = 1 (Anything raised to the zero power equals one no matter what the number is)

25 x 1 = 25

8 0
3 years ago
Emma is carpeting 2 perfectly square rooms.
ivolga24 [154]

She's wrong. If you have two squares, S_1 with side s_1 and S_2 with side s_2, it's not true that the sum of their areas is equivalent to the area of a square S_3 with side s_3=s_1+s_2.

So, there's no point in summing the two sides. Instead, you have to compute the areas of the two squares and then sum them up.

So, the area of the first square is 2.7^2, and the area of the second square is 3.3^2.

Add these two numbers and you'll get how many squared meters of carpet she'll need.

6 0
3 years ago
For brainiest:):):):):):):)
yuradex [85]

Answer:

3.1 i nee brain

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
How to find the minimum value of an expression
miv72 [106K]
f(x)=9x²+24x+1
f(x)=(3x)²+ 2×3x× 4 + 1
= (3x)²+2×3x×4 +16 -16 +1
=. ( 3x+4)² -15. -------(1)
then (3x+4)² ≥0
least value of (3x+4)² is 0
putting in equation 1
= 0-15 =-15
- 15 is the least value
3 0
3 years ago
Other questions:
  • Write words to match expression for (5x2)x (3x15)
    10·1 answer
  • Help, can’t figure it out, need help fast
    8·1 answer
  • It took 3/4 of a cake to
    7·1 answer
  • If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?
    11·1 answer
  • The circumference of a circle is 16π inches. Show how you can use this information to calculate the same circle’s area.
    9·1 answer
  • Use the distributive property to simplify the following expression -2(x+3)
    6·1 answer
  • Find the equation of the line which passes through (2,4) with a slope of 1/2​
    14·1 answer
  • Pls help and pls provide workings ​
    7·1 answer
  • ASAP ! The radius of a circle is 5 inches. What is the length of a 70° arc?
    9·1 answer
  • Can you help me please 3-4 please hurry
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!