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
Aleks04 [339]
3 years ago
10

Need help with this question. I tried simplifying the radical, but apparently it’s not the answer

Mathematics
1 answer:
sesenic [268]3 years ago
4 0

Answer:

-1/5+(√3)/20i   or   -0.2+0.05√3i

Step-by-step explanation:

  \dfrac{-8+\sqrt{-12}}{40}=-\dfrac{8}{40}+\dfrac{2\sqrt{3}i}{40}=\boxed{-\dfrac{1}{5}+\dfrac{1}{20}\sqrt{3}\,i=-0.2+0.05\sqrt{3}\,i}

_____

<em>Comment on answer form</em>

Satisfying the input format requirements of a computer is always problematic. One never knows if fractions or decimals are preferred, whether radicals must be simplified, and so on. If no clues are offered by general instructions, other questions, or previous experience, then it might be useful to consult your instructor.

You might be interested in
a ratio table! need help asap!!! Time (secs): | 4 | 8 | 12 | 16 | 20 | Distance (miles): - the bottom row is empty and i need he
Naddika [18.5K]
There is missing information required in order to find the solution. I need the satellite speed
8 0
2 years ago
A sport analyst wants to determine the mean salary of a Baseball player for 2015. He believes an estimate of this average salary
djyliett [7]

Answer:

<em>The large sample size 'n' =  199.6569≅ 200</em>

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given Standard deviation of salary for all baseball players for 2015 is about $5,478,384.55

<em>Standard deviation of  of salary for all baseball players for 2015 </em>

<em>   (S.D ) σ =  $5,478,384.55</em>

Given estimate of this average salary for all baseball players for 2015

                          =  $497,000

<em>Given Margin of error of error is  =  $497,000 </em>

<em>Level of significance ∝ = 80% </em>

<em>The critical value Z₀.₂₀ = 1.282  </em>

<u><em>Step(ii):</em></u><em>-</em>

<em>Margin of error of error is  determined by</em>

<em>           </em>M.E = \frac{Z_{0.20} S.D}{\sqrt{n} }<em></em>

<em>          </em>497,000 = \frac{1.282 X 5,478,384.55}{\sqrt{n} }<em></em>

Cross multiplication , we get

 \sqrt{n}  = \frac{1.282 X 5,478,384.55}{497,000 }

On calculation , we get

√n = 14.13

<em>Squaring on both sides, we get</em>

n = 199.6569

<u><em>Conclusion</em></u><em>:-</em>

<em>The large sample size 'n' =  199.6569≅ 200</em>

<em>    </em>

<em></em>

7 0
3 years ago
What are the sizes of x , y and z
Fiesta28 [93]

Answer:

x=70°

y=30°

z=20°

Step-by-step explanation:

You first need to find y, which would be 30 because the sum of the first two angles is 150, and a triangle has 180 degrees, so 180-150=30.

By finding y, we can now find a, because if you take the entire triangle, y+z must equal 50. So, z=20 because 30+z=50.

And finally, we can find x to be 70 since the sum of the two other angles is 110 and 180-110=70.

5 0
2 years ago
What are the important things an 8th grader needs to know about math?
gogolik [260]
Always foucus on the teacher ask help when needed
7 0
3 years ago
Read 2 more answers
What is the volume of the cone in the picture ifS=5 and R= 3? (V=
babunello [35]

Answer:

option aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Which of the following is equivalent to the polynomial below
    10·1 answer
  • Please help me with this I am new to this app so i want to have a good experience on it. Thanks
    15·2 answers
  • given the midpoint of segment KL is M (1,-1) and L (8,-7). What are the coordinates of the other endpoint K?
    6·1 answer
  • Jenny spent 35 minutes doing research on the internet.she finished at 7:10 p.m. at what time did jenny start her research
    7·2 answers
  • This table shows how many male and female students attended two different
    9·1 answer
  • What are the next three terms in the sequence 4, -1, -6, -11, ...?
    14·1 answer
  • Please help me out i don’t know what right and left is!!! please tell me :(((
    7·1 answer
  • Jacob ate 21 chips ahoy cookies in 1 hour and Bryant ate 25 chips ahoy cookies in the same time, at this rate, how mant whole co
    14·1 answer
  • HELP VERY MUCH NEEDED PLEASE AND THANKYOUUU!!Drag the tiles to the correct locations on the image. Not all tiles will be used.
    10·1 answer
  • What is the equivalent expression for 4(w-5)?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!