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
SSSSS [86.1K]
2 years ago
9

In a high school with 1,500 students, which would be the best way to select a random sample of students in order to collect data

about teenagers' preferences in music?
A. Ask every other member of the chorus.

B. Ask every student in an AP Calculus class.

C. Ask every 20th student during lunch in the school cafeteria.

D. Ask every 100th student who attends the school's pep assembly.

PLEASE HELPPPPP
Mathematics
1 answer:
puteri [66]2 years ago
4 0
Answer-C
explanation- tbh don’t have one but it’s seems like the most reasonable one
You might be interested in
Solve for the indicated variable 3x - y = 10; y
VashaNatasha [74]

Answer:

y = 3x - 10

Step-by-step explanation:

Starting with 3x - y = 10, add y to both sides:

3x = 10 + y

Then subtract 10 from both sides:

3x - 10 = y

If you switch the sides of the equation, it can also be written as:

y = 3x - 10

7 0
3 years ago
17. Which of the following is the correct formula for finding power in a DC circuit? A. P = I2R B. P = VR C. P = IR D. P = V2I
netineya [11]

Answer:

Choice A. P = I² · R where

  • P is the power in the DC circuit,
  • I is the current through the circuit, and
  • R is the total resistance of the circuit.

Step-by-step explanation:

Electrical power is the rate at which the electrical force does work. So what is electrical work? That's the work W that the electrical force do when it moves charges Q across a potential difference V:

W = V\cdot Q.

The power is the rate at which the electrical force do the work:

\displaystyle P = \frac{W}{t} = V \cdot \frac{Q}{t}.

On the other hand, current I is the charge through a cross-section of the circuit in unit time. By the definition of current:

\displaystyle\frac{Q}{t} = I.

\displaystyle P =V \cdot \frac{Q}{t} = V\cdot I.

Consider Ohm's Law:

V = I \cdot R.

Therefore

\displaystyle P = V\cdot I = (I \cdot R) \cdot I = I^{2}\cdot R.

6 0
3 years ago
Read 2 more answers
Help please!!
denpristay [2]

Answer:

1 - 3 = 2/ 6x +2=8x   8x-2 = 6x divided by 6x = 1x so there but if 1 to ur math is no solution then theres no solution but if there is a solution ur welcome! 5*

8 0
3 years ago
Candice bought 6 dozen eggs and broke 9 eggs how many eggs did she have left
Nadya [2.5K]

Answer:

63

Step-by-step explanation:

12x6=72

72-9=63

the answer is 63

3 0
2 years ago
Read 2 more answers
An observation deck extends 120 feet out above a valley. The deck sits 70 feet above the valley floor. If an object is dropped f
Rzqust [24]

Answer:

2

Step-by-step explanation:

The height formula given is:

h = -16t^2 + 70

That means the object will be initially (t=0) at the height 70 feet, from where it will be dropped.

If we want to know the time when the object will be at height 6 feet, we just need to use h=6 in the equation, and then calculate the value of t:

6 = -16t^2 + 70

16t^2 = 64

t^2 =4

t = 2 s

So, it will take 2 seconds for the object to be 6 feet above the valley floor.

8 0
3 years ago
Other questions:
  • Plz help it’s the ANDREA ONe
    15·1 answer
  • Two similar cylinders have a scale factor of (1.6/3). Find the ratio of their volumes.
    11·2 answers
  • Find the area for the image below A (0,6) B (5, -4) C(5,2 ) D (9,2) E (9,6)
    8·1 answer
  • Simplify 3n-(n+4) I am having trouble with it
    6·2 answers
  • Students in an art class make square tiles that are 5 inches long.They plan to make a row of tiles that is 4feet 2 inches long.
    6·2 answers
  • I Need help on this IQR Problem
    12·2 answers
  • Suppose the function F is defined by F(x)= integral from sqrt x to 1 of (2t - 1)/(t + 2) dt for all real numbers x > or = 0?
    7·1 answer
  • marcus entered a race that involves swimming and running. he will need to swim 0.72 mile and run 1.65 miles. how far will marcus
    9·1 answer
  • What is the mixed number for 4.8
    5·2 answers
  • It costs $150 to rent a party room at Pizza-n-Games, plus $6 per person for pizza and $5 per person for game tickets. The expres
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!