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
Assoli18 [71]
2 years ago
11

ula1" title="(\frac{8a^{-5}b^{4} }{12a^{-6}b^{-2} })" alt="(\frac{8a^{-5}b^{4} }{12a^{-6}b^{-2} })" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
Kobotan [32]2 years ago
6 0

Step-by-step explanation:

→ \frac{8 {a}^{( - 5) } {b}^{(4)}  }{12 {a}^{( - 6)} {b}^{( -  2)}  }  =  \frac{2 {a}^{(6 - 5)}{b}^{(4 + 2)} }{3}   =  \boxed{ \frac{2}{3}a {b}^{6} }✓ \\

  • <u>(2/3)ab⁶</u> is the right answer.
Dima020 [189]2 years ago
4 0
2ab6/3 is the awnser for this one
You might be interested in
Suppose that the epidemiologist wants to re-estimate the population proportion and wishes for her 95% confidence interval to hav
Svetllana [295]

Answer:

She needs a sample of at least 385.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

How large a sample should she take to achieve this?

She needs a sample of size at least n.

n is found when M = 0.04.

We do not know the true population proportion, so we use \pi = 0.5, which is the case for which we are going to need the largest sample size.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.05 = 1.96\sqrt{\frac{0.5*0.5}{n}}

0.05\sqrt{n} = 1.96*0.5

Dividing both sides by 0.05

\sqrt{n} = 19.6

(\sqrt{n})^{2} = 19.6^{2}

n = 384.2

Rounding up

She needs a sample of at least 385.

3 0
3 years ago
I need help with this one
Svetlanka [38]

Answer:

Top right

Step-by-step explanation:

The solution to a system of equation is where the two graphs cross

The top right lines cross at (5,-3)

5 0
3 years ago
Original: 379 New: 83
VladimirAG [237]
379x=89
_______
379 =379

x=0.21
5 0
3 years ago
Factor the expression 16j^+24j+9. Thank u I appreciate it
meriva
Factor the expression.
3(128j+3)
7 0
3 years ago
Graph the inequality.<br> 2x+5y&gt; -15
Sedbober [7]

Answer: See attached

Step-by-step explanation:

   [] Since the inequality uses greater than (>) and <em>not</em> greater than or equal to (≥), the line will be dashed.

   [] The inequality is greater than (>) so we will shade above the line as values "above" are greater.

5 0
2 years ago
Read 2 more answers
Other questions:
  • You purchase x number of balloons for your party. You distribute them evenly among 8 tables. While you are finishing up with you
    13·2 answers
  • 6. Give the slope of each line. Also, state if the lines are parallel (yes or no).
    15·1 answer
  • Find the volume of the cone. Round your answer to the nearest hundredth.
    6·1 answer
  • The file CEOSAL2.RAW contains data on 177 chief executive officers and can be used to examine the effects of firm performance on
    14·1 answer
  • A bag contains yellow marbles and blue marbles, 23 in total. The number of yellow marbles is 7 less than 2 times the number of b
    11·1 answer
  • Find x round your answer to the nearest tenth of a degree
    10·2 answers
  • Can anyone explain how to do this? The answer isn't as important as the explanation. My teacher gave us a video w/o an example l
    9·1 answer
  • Could ya’ll play my game? Only two people are playing, and it’s a roleplay game, which is pretty bad lol. https://scratch.mit.ed
    5·2 answers
  • Monu
    14·2 answers
  • In parallelogram DEFG, DH = x + 1, HF = 3y, G H = 3 x − 4 , GH = 3x - 4, and HE = 5y + 1. Find the values of x and y. The diagra
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!