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
ohaa [14]
3 years ago
8

Can someone please help me solve for 81^x=3

Mathematics
1 answer:
bulgar [2K]3 years ago
8 0
Ok so remember if
a^x=a^y then x=y and

(x^m)^n=x^(mn)
try to make bases the same

81=9*9=3*3*3*3=3^4 so
81^x=(3^4)^x=3^(4x)

remember that 3=3^1

now we have
3^(4x)=3^(1)
therefor
4x=1
divide both sides by 4
x=1/4



x=1/4
You might be interested in
Please help me now plz <br> I will mark you brainliest
jek_recluse [69]

Answer:

The vertex angle is 180-(60+75)=45.

k/sin75=900/sin45 so k=900sin75/sin45=1229km approx.

Step-by-step explanation:

6 0
4 years ago
Write an expression that is equivalent to -2/5(15 - 20d +50)<br> Explain please!:)
valina [46]

Answer:

-26 + 4/5d

Step-by-step explanation:

-2/5 ( 15 - 2d + 50)

= -2/5 ( 65 - 2d)

= -2/5 * 65 - (-2/5) * 2d

= -26 - (-4/5d)

= -26 + 4/5d

3 0
3 years ago
Plz help!!
inysia [295]
<span>1. 5564÷91
I know that 9 * 6 = 56
5564 rounds to 5600
91 rounds to 9
Since 56/9 = 6, then 5600/90 is the same as 560/9 = 60
The estimate is 60

2. </span><span>5391÷25
5391 sounds to 5400
25 is 1/4 of 100.
That means when you divide by 25, you can divide by 100 and multiply by 4.
5400/100 = 54
54 * 4 = 216
Estimate: 216

3. </span><span>explain how to estimate 498÷12
48/12 = 4
498 is little more than 480, so 498/12 is little more than 40

4. </span><span>which is the closest estimate for 2130÷ 33
A.7 B.17 C.70 D.700

2130/33
Round off the numerator and denominator to
2100/30
Reduce the fraction
210/3
Since I know that 21/3 = 7, then 210/3 = 70
Estimate: 70
</span>
8 0
3 years ago
A rectangular prism that has a length of 8 feet, width of 6 feet, and height of 12 feet. What is the volume of the prism?
makvit [3.9K]

Answer:

The answer/volume is 576

Explanation:

I used a calculator for the volume online

3 0
4 years ago
Read 2 more answers
The number 720 can be expressed as<br>24 x 36 x 5. Work out the values of a and b.<br>​
soldi70 [24.7K]

Answer:

24×36×5=4,320

4,320÷6=720

4 0
4 years ago
Read 2 more answers
Other questions:
  • If EG=25 and point F is 2/5 of the way between E and G, find the value FG. The drawing is not to scale.
    5·1 answer
  • Solve for x. 47x=2747x=27
    7·1 answer
  • Show that if X is a geometric random variable with parameter p, then
    5·1 answer
  • How do you write a polynomial function for this graph?
    9·2 answers
  • write an equation of the line that passes through the given point and is perpendicular to the given line (-5,-8) 3x-4y=10
    14·1 answer
  • The graph of a function contains the points (1,3) and (2,5) which statement is correct?
    15·1 answer
  • A rectangular garden has a total area of 48 yards.Draw and label two possible rectangular gardens with diffrent side lenghts tha
    9·1 answer
  • Solve the equation: <br> - 5 = 5x + 7
    10·2 answers
  • Assume you’ve arrived at this solution: (4x^2 + 8x + 15) + (x^2 − x − 27) − (x^2 − 2x − 35) Going from left to right, what will
    12·1 answer
  • Can someone help me on this ASAP? This is a PRACTICE test and i already know the answer which is A.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!