3 years ago

Helppppppp meeeeee plzzzz

Mathematics

1 answer:

bulgar [2K]3 years ago

8 0

Non proportional I think. Wait for someone else to answer

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Identify which type of sampling is used: random, systematic, convenience, stratified, or cluster. To determine customer opini

azamat

Answer:

This is cluster sampling.

Step-by-step explanation:

American Airlines randomly selects 110 flights during a certain week and surveys all passengers on the flights.

This is a type of cluster sampling.

This type of sampling is done by dividing the population into different groups and a simple random sample of clusters is selected from the population.

8 0

3 years ago

The acceleration function a(t) (in m/s2) and the initial velocity v(0) are given for a particle moving along a line.

klemol [59]

Answer:

A: $v(t)=-t^2+4t-5$

Step-by-step explanation:

Acceleration is second derivative of position, velocity is first derivative. Therefore, the velocity is the integral of acceleration.

$v(t)=\int\ {2t+4} \, dt$

Integrate:

$-t^2+4t+C$

V(0)=-5:

$-0^2+4(0)+C=-5\\C=-5$

Therefore, v(t):

$v(t)=-t^2+4t-5$

7 0

3 years ago

Want me to help you on your homework for free? If so, answer this question. I have no missing assignments.

user100 [1]

Wait I just need points AND YES

4 0

3 years ago

Kay is making bead necklaces. She has 80 red beads and 64 blue beads. What is the greatest number of identical necklaces she can

RUDIKE [14]

Answer:

Step-by-step explanation:

80/2 = 40

64/2 = 32

so she can make about 32

3 0

2 years ago

Mr. Nelson wants to put chicken wire around his chicken coup. He purchased 28.2 feet of chicken wire. The cost was $0.55 per foo

Shalnov [3]

Answer: $15.51

Step-by-step explanation: 28.2 times 0.55 is $15.51

6 0

3 years ago

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