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
abruzzese [7]
3 years ago
5

iranda is conducting a poll to determine how many students would attend a students-only school dance if one was held. Which samp

le is most likely to yield a representative sample for the poll? twenty names from each grade pulled blindly from a container filled with the names of the entire student body written on slips of paper every tenth person walking down Main Street in town at different times of the day all of the students who write into the school newspaper every student from all of Miranda’s classes
Mathematics
1 answer:
Nastasia [14]3 years ago
7 0

Answer: 20 names from each grade

Step-by-step explanation:

The two answers it comes down to are between every student from all of her classes and 20 students from each grade, however since the poll wants to determine how many people across the entire student body would attend, pulling from just Miranda's classes would add a grade level bias to the dance and would not be entirely random. 20 students from each grade is completely unbiased and properly represents the entire student body.

You might be interested in
The sum of three consecutive even integers is 54. Find all three integers.
matrenka [14]
A good way to find the answer to these questions is to find it algebraically. Let's call the first number 'n'. 
n + (n + 2) + (n + 4) = 54
3n + 6 = 54
3n = 48
n = 16
Therefore the numbers are 16, 18, 20

6 0
3 years ago
If a polynomial has one root in the form a+√b , it has a second root in the form of a_√b
gulaghasi [49]
When roots of polynomials occur in radical form, they occur as two conjugates.
That is,
The conjugate of (a + √b) is (a - √b) and vice versa.
To show that the given conjugates come from a polynomial, we should create the polynomial from the given factors.

The first factor is x - (a + √b).
The second factor is x - (a - √b).

The polynomial is
f(x) = [x - (a + √b)]*[x - (a - √b)]
      = x² - x(a - √b) - x(a + √b) + (a + √b)(a - √b)
      = x² - 2ax + x√b - x√b + a² - b
      = x² - 2ax + a² - b

This is a quadratic polynomial, as expected.

If you solve the quadratic equation x² - 2ax + a² - b = 0 with the quadratic formula, it should yield the pair of conjugate radical roots.
x = (1/2) [ 2a +/- √(4a² - 4(a² - b)]
   = a +/- (1/2)*√(4b)
   = a +/- √b
x = a + √b, or x = a - √b, as expected.
3 0
3 years ago
Read 2 more answers
Can someone please do 1-9
andriy [413]
1-9=-8 is your answer
5 0
3 years ago
Which equation represents this sentence? 1/3 times the difference of a number and 4 is 1/6. 1/3x−4=16 1/3(x−4)=1/6 4−1/3x=1/6 1/
pychu [463]

Answer:

(1/3)(n - 4) = 1/6

Step-by-step explanation:

Let the number be n.  Then the given phrase can be written symbolically as (1/3)(n - 4) = 1/6. This is the second answer choice.

8 0
2 years ago
Classify the real numbers as rational or irritational numbers
Andre45 [30]

Answer:

god loves you <3 .

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • The distance from Mars to the Sun is 1.416×10^8 miles. The distance from Earth to the Sun is 9.296×10^7 miles. How many more mil
    7·1 answer
  • The diameter of a small gear is 16 cm. This is 2.5 cm more than 1/4 of the diameter of a larger gear. What is the diameterof the
    13·2 answers
  • Which is a possible expression for the series
    15·1 answer
  • John is looking up at the top of the Empire State Building from 1 mi. away and measures the angle of elevation to be 11 degrees.
    8·2 answers
  • Soon after taking an aspirin, a patient has absorbed 320 mg of the drug. after 3 hours, only 40 mg remain. find an exponential m
    11·1 answer
  • What number does these numbers decrease by -2400, -960 -384? hint sub or divide
    14·1 answer
  • Name two learned behaviors that can be inferred from the picture, and explain how you know they are learned behaviors.
    9·1 answer
  • Is y=8200(1.19)x a growth or decay and what is the percentage
    13·2 answers
  • Expand and simplify 5(2x-1)-2(3x+2)
    5·1 answer
  • A company bought 28 desks for each<br> of its 17 offices. How many desks were<br> bought altogether?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!