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
denis-greek [22]
1 year ago
12

Identify the type of sampling method used.A trucking company places their office phone number on the back of all of their vehicl

es to receive comments on how well their employees are driving.
Mathematics
1 answer:
ziro4ka [17]1 year ago
7 0

Explanation

In this sample, people elect to participate or self-select to do the survey. Often, these folks have a strong interest in the main topic of the survey.

In essence, they volunteer to inform the trucking company about the activities of their drivers. That makes this a voluntary sample.

Answer: Voluntary Sampling Method

You might be interested in
3 children share 6 crayons equally<br>How many pencils will each child get?<br>​
AVprozaik [17]

Answer:

2

Step-by-step explanation:

=6/3

=2

3 0
2 years ago
Read 2 more answers
If θ=0rad at t=0s, what is the blade's angular position at t=20s
babunello [35]
The attached figure represents the relation between ω (rpm) and t (seconds)
To find the blade's angular position in radians ⇒ ω will be converted from (rpm) to (rad/s)
              ω = 250 (rpm) = 250 * (2π/60) = (25/3)π    rad/s
              ω = 100 (rpm) = 100 * (2π/60) = (10/3)π    rad/s

and from the figure it is clear that the operation is at constant speed but with variable levels
            ⇒   ω = dθ/dt   ⇒   dθ = ω dt

            ∴    θ = ∫₀²⁰  ω dt  
 
while ω is not fixed from (t = 0) to (t =20)
the integral will divided to 3 integrals as follow;
       ω = 0                                          from t = 0  to t = 5
       ω = 250 (rpm) = (25/3)π            from t = 5   to t = 15
       ω = 100 (rpm) = (10/3)π            from t = 15 to t = 20

∴ θ = ∫₀⁵  (0) dt   + ∫₅¹⁵  (25/3)π dt + ∫₁₅²⁰  (10/3)π dt
     
the first integral = 0
the second integral = (25/3)π t = (25/3)π (15-5) = (250/3)π
the third integral = (10/3)π t = (25/3)π (20-15) = (50/3)π

∴ θ = 0 + (250/3)π + (50/3)π = 100 π

while the complete revolution = 2π
so instantaneously at t = 20
∴ θ = 100 π - 50 * 2 π = 0 rad

Which mean:
the blade will be at zero position making no of revolution = (100π)/(2π) = 50
















3 0
3 years ago
In Δ ABC, which is the included side between ∠A and ∠C?
murzikaleks [220]
The answer is B AC
because it's the 2 that connect the line between A and C
5 0
3 years ago
HELP PLEASE SHOW STEPS I HAVE NO IDEA WHAT TO DO. I HAVE BEEN TRYING TO FIGURE IT OUT BUT I CAN’T.
weqwewe [10]

Answer: x^{2} +23x+49

Step-by-step explanation:

To find the area of the shaded region, you must find the area of the larger rectangle [(x+10)×(2x+5)] and subtract the area of the smaller rectangle [(x+1)×(x+1)] from it.

First, you simplify the larger rectangle's area:

(x+10)×(2x+5) = 2x^{2} +25x+50

Then, simplify the smaller rectangle's area:

(x+1)×(x+1) = x^{2} +2x+1

Finally, subtract the smaller rectangle's area from the larger rectangle's area:

(2x^{2} +25x+50) - (x^{2} +2x+1) = x^{2} +23x+49

Therefore, the final answer is x^{2} +23x+49.

I hope this helps!

8 0
2 years ago
Read 2 more answers
What are two decimals whose product is close to ten
Wewaii [24]
Just think of any 2 number that multiply to 10, then just add really small decimal values.
5*2=10 \\ 5.01*1.99=\ close\ to\ ten
8 0
3 years ago
Other questions:
  • You play video games online. When you sign up with the game site, you get 200 points. You earn 20 more points for each hour that
    13·2 answers
  • My friend sets out walking at a speed of 3 miles per hour. I set out behind her 5 minutes later at 4 miles per hour.
    6·1 answer
  • What function is graphed below?
    15·2 answers
  • What is 98.43 as a fraction?
    12·1 answer
  • A balloon is released at ground level, and it rises into the air at a constant rate. after 12 seconds the balloon is 180 feet ab
    5·1 answer
  • Which of the scenarios below would a t-test of the difference between means for dependent samples be appropriate?
    13·1 answer
  • A recent survey has shown that 68% of professional photos are of humans, 39% are of pets, and 17% are of both humans and pets. S
    9·2 answers
  • Write a two column proof. (answer what you can if possible)
    10·1 answer
  • Please answer ASAP and show work so I can answer this test
    5·1 answer
  • Fh
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!