A cell phone manufacturer chose 200 people at random and asked them whether they would purchase the newest model for $300. The manufacturer repeated this survey using the same method three more times.Do any of the surveys appear to be biased?

Would purchase new model for $300? Survey
1 2 3 4
Yes 127 131 128 133
No 73 69 72 66

A.
Yes, because the results from Survey 1 differ the most from the other surveys’ results.

B.
Yes, because the results from Survey 4 differ the most from the other surveys’ results.

C.
No, because the sampling methods are all different but have about the same results.

D.
No, because all four surveys have about the same number of people saying “yes” and about the same number of people saying “no.”

Answers

Answer 1

Answer: Yes, because the results from Survey 4 differ the most from the other surveys’ results.

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The opposite of 10/7

Answers

The opposite of 10/7 is -10/7.

The reciprocal of 10/7 would be 7/10.

By "opposite" do you mean the reciprocal?

What is a trapezium?

Answers

A type of quadrilateral (for geometry) or bone in the wrist (anatomy).

A trapezium is a type of a quadrilateral.

Brendon had total job benefits of $39,500 last year. He was required to wear a shirt with the company logo on it for work that he was responsible for buying. Brendon purchased 12 shirts for work during the year at a cost of $23.95 each. He was also required to attend a training at a cost to him of $135. What was Brendon’s total employment compensation last year? a. $39,077.60 b. $39,212.60 c. $39,341.05 d. $39,922.40

Answers

Answer:

a. $39,077.60

Step-by-step explanation:

We have been given that Brendon had total job benefits of $39,500 last year. Brendon purchased 12 shirts for work during the year at a cost of $23.95 each.

To find Brendon's total employment compensation, we will subtract total expenses from Brendon's total job benefits.

Let us find the cost of 12 shirts by multiplying $23.95 by 12.

$\text{Amount spent on 12 shirts}=12* \$23.95$

$\text{Amount spent on 12 shirts}=\$287.40$

To find the total expenses we will add the cost of training in cost of 12 shirts.

$\text{Brendon's total expenses}=\$287.40+\$135$

$\text{Brendon's total expenses}=\$422.40$

Let us subtract total expenses from total job benefits.

$\text{Brendon’s total employment compensation last year}=\$39,500-\$422.40$

$\text{Brendon’s total employment compensation last year}=\$39,077.60$

Therefore, Brendon’s total employment compensation last year was $39,077.60 and option 'a' is the correct choice.

39,500 - (12 * 23.95) - 135 = 39,077.60

April sold 75 tickets to a school play and collected a total of $495. If the adult tickets cost $8 each and child tickets cost $5 each, how many adult tickets and how many child tickets did she sell?

Answers

Answer: 40 adult tickets and 35 child tickets were sold.

Step-by-step explanation:

Let x represent the number of adult tickets that were sold.

Let y represent the number of child tickets that were sold.

April sold 75 tickets to a school play. It means that

x + y = 75

If the adult tickets cost $8 each and child tickets cost $5 each and and a total of $495 was collected from ticket sales, it means that

8x + 5y = 495- - -- - - - - - - - -1

Substituting x = 75 - y into equation 1, it becomes

8(75 - y) + 5y = 495

600 - 8y + 5y = 495

- 8y + 5y = 495 - 600

- 3y = - 105

y = - 105/-3

y = 35

x = 75 - y = 75 - 35

x = 40

The time it takes for an object stopped from a certain speed can be modeled by the equationt=1/2 square root v, where v is the speed of object in meters per second. if it takes 3 seconds for the object to stop, what is the speed of object in meters per second?

Answers

Given:
t = 1/2 √v
v = speed of object meters per second

t = 3 seconds

3 = 1/2 √v
3 * 2 = √v
6 = √v
6² = √v²
36 meters = v

v = 36 meters per second

A swimming pool is being drained for maintenance. The volume of water in the pool changes by −12 gallons every minute. What is the change in volume over 90 minutes? Enter the your answer in the box.

Answers

Answer:

Step-by-step explanation:

Answer:

-1080

Step-by-step explanation:

1 min = -12

90 min = 90 * (-12) = - 1080

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