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
Salsk061 [2.6K]
2 years ago
13

3^-4 as a fraction, i need the exact value of this number as a fraction please and thank you :)

Mathematics
1 answer:
Musya8 [376]2 years ago
8 0

Answer:

\frac{1}{81}

Step-by-step explanation:

Using the rule of exponents

a^{-m} = \frac{1}{a^{m} } , then

3^{-4} = \frac{1}{3^{4} } = \frac{1}{81}

You might be interested in
Write the quadratic equation in standard form -8x+3x^2=-18
stepladder [879]
X = ± √<span>6 </span><span>= ± 2.4495 because i know it</span>
6 0
2 years ago
"You measure 34 dogs' weights, and find they have a mean weight of 67 ounces. Assume the population standard deviation is 13.5 o
liraira [26]

Answer:

The 95% confidence interval for the true population mean dog weight is between 62.46 ounces and 71.54 ounces.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96*\frac{13.5}{\sqrt{34}} = 4.54

The lower end of the interval is the sample mean subtracted by M. So it is 67 - 4.54 = 62.46 ounches.

The upper end of the interval is the sample mean added to M. So it is 67 + 4.54 = 71.54 ounces.

The 95% confidence interval for the true population mean dog weight is between 62.46 ounces and 71.54 ounces.

7 0
3 years ago
Hey there! posted picture of question help please
Amiraneli [1.4K]
For this case we have the following function:
 f (x) = (1/6) ^ x
 We must evaluate the function for x = 3
 We have then:
 f (3) = (1/6) ^ 3
 Rewriting:
 f (3) = (1/216)
 Answer:
 
The function evaluated at x = 3 is:
 
f (3) = (1/216)
 
option C
8 0
3 years ago
Read 2 more answers
Which terms describe this shape? Choose all that apply.
Sonja [21]
The correct answer is rectangle
4 0
2 years ago
Read 2 more answers
Which statement best describes the equation y = 3 - 4x?
Ronch [10]
The correct answer is C. A linear equation is written in y=mx+b, which this equation can be. y=3-4x is the same as y=-4x+3, which is a linear function.
8 0
2 years ago
Other questions:
  • Can someone help me with both of these questions please and thank you so much!
    14·1 answer
  • HELP PLS MANY POINTS Use the function f(x) to answer the questions: f(x) = 4x2 + 8x − 5 Part A: What are the x-intercepts of the
    9·1 answer
  • If m∠agh = 4x and m∠ghd = 3x + 40, what is the value of x?
    9·1 answer
  • What number must be added to the expression (-75) - (-20) so that the sum is is 56?
    12·2 answers
  • Х = 7y - 22<br> Зу - х = 14<br> Need help asap
    15·1 answer
  • AnSwER tHIs ssssssssssss
    11·1 answer
  • Solve 4x – 2(x + 1) = 3x + 10<br> Ox= -12<br> Ox=12<br> Ox= -8<br> Ox=8<br> HELP ASAP
    14·2 answers
  • Find the values of a given that AGHJ ZAMNP.<br> G<br> N<br> (2x<br> 50°<br> 142<br> M<br> H
    9·1 answer
  • Write an equation of the line with the given slope, m, and y-intercept (0,b).<br><br> m = 8, b = 9
    15·1 answer
  • X+a=3/4<br> How do I solve for x first then a
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!