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
pashok25 [27]
3 years ago
10

What is z if -1/3+2z=-5/6?

Mathematics
1 answer:
Wittaler [7]3 years ago
7 0
-1/3+2z=-5/6
-2/6+2z=-5/6
Add 2/6 to both sides:
2z=-3/6
2z=-1/2
Divide both sides by 2
z=-1/4

Hope this helps :)
You might be interested in
please help me it is URGENT pls the first one is solve and the 2nd one is simplify I will give u lots of points thank you
klasskru [66]
I.) (5x+3)/4-(2x-4)/3=5
Clear fractions:
3·((5x+3)/4)=15x+9
4·((2x-4)/3)=8x-16
15x+9-(8x-16)=5
15x+9-8x+16=5
Combine like terms:
7x+25=5
7x=-20
x=-20/7

II.) (3/11)·(5/6)-(9/12)·(4/3)+(5/13)·(6/15)
Remember PEMDAS
So first multiply:
3/11·5/6=15/66
9/12·4/3=3/3·1/1=3/3=1
5/13·6/15=1/13·6/3=6/39=2/13
(15/66)-1+(2/13)
Combine:
15/66-1/1=15/66-66/66=-51/66
-51/66+2/3=-51/66+44/66=-7/66
Answer: -7/66 :)
7 0
3 years ago
Read 2 more answers
Can someone help me with the meaning of percent
LekaFEV [45]

69 out of 100 would be 69/100 = 0.69 = 69% were answered correctly

100% - 69% = 100-69 = 31 = 31%  = 31/100 were incorrect

8 0
2 years ago
Which of the following estimates at a 95% confidence level most likely comes from a small sample
Nikitich [7]

Answer:

Answer is c

Step-by-step explanation:

In hypothesis testing whether to accept or reject null hypothesis, normally we find one method as using confidence interval.  If the test statistic lies within confidence interval, we accept otherwise we reject.

For arriving confidence intervals we add and subtract margin of error from the mean we use in null hypothesis.

Margin of error = std error * critical value of test (Z or t etc)

For the same std deviation, std error = std dev/sq rt of sample size

Thus std error is inversely proportional to the square root of sample size.

If n becomes larger, std error becomes smaller and vice versa.

So margin of error increases for smaller sample size.

Since we have to select confidence level from a small sample, we have to select one which has the greatest margin of error=18

Hence answer is

c)  71%(+/-18%)

5 0
3 years ago
12. Find the area of a circle with a circumference<br> of 11(3.14) feet
sweet-ann [11.9K]

Answer:

A≈9.63

Step-by-step explanation:

Circumference: 11

Using the formulas

A=πr2

C=2πr

Solving forA

A=C2

4π=112

4·π≈9.62887

6 0
2 years ago
How many pentagons can be drawn by joining the vertices of a polygon with 10 sides?
inn [45]
..............10c5..............
5 0
2 years ago
Other questions:
  • Plz answer 17 16 and 18 show work
    9·1 answer
  • In converting 9 inches to yards, what unit (omit the number) would you place
    7·1 answer
  • What is 126 billion divied by 108.2 billion
    13·2 answers
  • Solve this problem???​
    15·1 answer
  • If two points known on the line A B in the coordinate plane is (7,15) and (18,42), calculate the slope of the line AB and the le
    14·1 answer
  • 8 9/10-1 1/5 please answer soon
    5·2 answers
  • Please answer <br> ( will give brainlst)
    8·2 answers
  • The measures of two angles are 2x⁰ and (3x + 20)⁰. What is the measure of each angle if x = 14?
    9·1 answer
  • CAN SOMEONE MULTIPLY THIS PLEASE, ITS URGENT
    8·1 answer
  • Based on a survey of U.S. residents completed in 2014, ___________ percent of respondents agreed that global warming is occurrin
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!