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
Fudgin [204]
3 years ago
11

Please help ill mark BRAINLIEST

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
4 0
The answer is 4/7
Hope this helps
Thank you soo much
You might be interested in
"a pollster wishes to estimate the number of left-handed scientists. how large of a sample is needed in order to be 98% confiden
nadezda [96]
The sample size should be 250.

Our margin of error is 4%, or 0.04.  We use the formula

\text{ME}=z\sqrt{\frac{\hat{p}(1-\hat{p})}{n}}

To find the z-score:
Convert 98% to a decimal:  0.98
Subtract from 1:  1-0.98 = 0.02
Divide both sides by 2:  0.02/2 = 0.01
Subtract from 1:  1-0.01 = 0.99

Using a z-table (http://www.z-table.com) we see that this value has a z-score of approximately 2.33.  Using this, our margin of error and our proportion, we have:

0.04=2.33\sqrt{\frac{0.08(1-0.08)}{n}}
\\
\\0.04=2.33\sqrt{\frac{0.08(0.92)}{n}}

Divide both sides by 2.33:
\frac{0.04}{2.33}=\sqrt{\frac{0.08(0.92)}{n}}

Square both sides:
(\frac{0.04}{2.33})^2=\frac{0.08(0.92)}{n}

Multiply both sides by n:
(\frac{0.04}{2.33})^2n=0.08(0.92)

Divide both sides to isolate n:
\frac{0.08(0.92)}{(\frac{0.04}{2.33})^2}=n
\\
\\249.73=n
\\n\approx 250
4 0
3 years ago
What is the answer for3+8x=4
Schach [20]

Answer: x=1/8

Step-by-step explanation:

Subtract 3 from both sides

3+ 8x=4

8x=1

Divide by 8 on both sides

x=1/8

Hope this helped! :)

3 0
3 years ago
Bill and Lisa are surveying their classmates about their summer reading. Their questions are given below:
Rina8888 [55]
It is my unprofessional opinion that the answer will be c.
my reasoning is because Lisa is asking for a percentage from a set amount<span />
7 0
3 years ago
A rectangular pool is 30 1/3 feet long and 12 1/2 feet wide. What is the area of the pool?
HACTEHA [7]
Where t is the time in years

6 0
2 years ago
Read 2 more answers
Which strategy would you use to divide 36÷6?Explain why you chose that strategy.
marusya05 [52]
I would use what times 6 = 36 because 6*6+36 
7 0
3 years ago
Read 2 more answers
Other questions:
  • If the frequency of two alleles in a gene pool is 90%A and 10% a, what is the frequency of individuals in the population with th
    8·1 answer
  • At a concession stand, a pickle and two bags of chips costs a total of $3.25. Three pickles and four bags of chips costs a total
    7·1 answer
  • Find the missing coefficient. -___________ y2 − [-5y − y(-7y − 9)] − [-y (15y + 4)] = 0
    5·2 answers
  • a goldsmith combined an alloy that costs $4.40 per ounce with an alloy that costs $1.90 per ounce. how many ounces of each were
    8·2 answers
  • (-3+x) divided by 2= negative one half
    8·2 answers
  • Solve and graph each Inequality.<br><br> l2c-5l&lt;9
    15·1 answer
  • A Parachutes speed during a freefall reaches 108 mph. What is the speed in feet per second? At this speed, how many feet with a
    5·1 answer
  • Find the slope and y-intercept of the line
    5·1 answer
  • Please help :( Im desperate
    5·1 answer
  • This afternoon Darren left school, rode the bus 1/2 of a mile, and then walked 1/4 of a mile to get home. How much farther did D
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!