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
Nikitich [7]
4 years ago
13

What value of n solves the equation 3^n=1/81 ? A. –243 B. –27 C. –4 D. 4

Mathematics
1 answer:
Shalnov [3]4 years ago
5 0
This is fairly simple. You would just substitute the answer choices in for 'n'.
3^-243=0
So, A. isn't correct.
3^-27=1.31137265.....
So, B. isn't correct.
3^-4=0.123456789 In fraction form this is 1/81
So, we think C. is the correct answer, but just to be sure,  let's try D.
3^4=81 In fraction form this would be 81/1.
So, C. is our answer. 
Hope this helps!!
You might be interested in
Resolve into factors (a+b) ^2-(x+y)^2​
Mumz [18]

Step-by-step explanation:

(a+b) ^2-(x+y)^2

((a+b)-(x+y))((a+b)+(x+y))

=(a+b-x-y)(a+b+x+y)

4 0
3 years ago
Read 2 more answers
Find the unknown side (w) of the rectangular solid. Please help..
Phoenix [80]

Answer:

Step-by-step explanation:

MAy yoy make it bigger

5 0
3 years ago
The picture below shows Annie and her younger brother Tommy’s money. They want to combine their money to buy something together.
Inga [223]

Answer:

$5.47

Step-by-step explanation:

Given data:

Annie has 4 dollar , 11 dimes, 4 pennies.

Tommy has 3 dimes, 3 pennies.

To add the money, let us first convert dime and penny into dollar.

1 dollar = $1

11 dime = $1.1

4 penny = $0.04

3 dime = $0.3

3 penny = $ 0.03

Total money = Annie’s money + Tommy’s money

                     = $4 + $1.1 + $ 0.04 + $0.3 + $0.03

                     = $5.47

So, they have $5.47 in all.

5 0
4 years ago
Read 2 more answers
Which of the following is a solution to<br> the equation 0 = x2 – 8x – 13?
Fed [463]

Answer:

x= 32 ± √29

Step-by-step explanation:

x² - 8x - 13 = 0

ax² + bx + c = 0

Comparing equations we get,

a=1

b=(-8)

c=(-13)

Using quadratic formula,

________

x= b² ± √ b²-4ac

—————————

2a

Substituting the values

__________

x= 64 ± √( 64 + 52)

______________

2

= 32 ± √29

Hope this answer helps you....

5 0
4 years ago
Brainliest!!!
Cloud [144]

Answer:

3rd option

Step-by-step explanation:

We have two kind of necks and three different colours so the andswer would be 3rd option

Crew-neck :CB,CY,CG

V-neck : VB,VY,VG

7 0
3 years ago
Read 2 more answers
Other questions:
  • John has 10 dogs and 15 cats. If John sold 3 dogs and 3 cats, how many animals does he have in all?
    5·1 answer
  • In parallelogram ABCD , diagonals AC¯¯¯¯¯ and BD¯¯¯¯¯ intersect at point E, AE=2x2−3x , and CE=x2+4 . What is AC ?
    10·2 answers
  • What does "how many times greater" mean in math?
    11·1 answer
  • Which of the following rational functions is graphed below?
    13·1 answer
  • What are the solutions of the equation?<br>15 - 8x^2 – 14x​
    14·1 answer
  • Plz help with numbers 3 and 4 !!
    10·2 answers
  • Which angle pairs must be supplementary? Select the 4 answers that apply.
    11·2 answers
  • Which inequality correctly compares 1/2, 3/4, and 2/3
    5·1 answer
  • The temperature at 12 Noon was above zero. If it decreases at the rate of 4 degrees Per hour until midnight, at what time would
    7·1 answer
  • Consider the figure shown below where ab is a line segment and m is the midpoint of the line segment ab
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!