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Olenka [21]
3 years ago
14

Describe whether each of the following is linear or not linear. In each case, explain your answer.

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
4 0
A. 3x+4y+2=0 ----------linear

B. X= 2,4,6,8 Y=1,5,15,30 -------nonlinear

C. You have a secret that you tell to one person. Every hour, each of the people that know the secret tells one person. The number of people who know is N, and t is the number of hours since you told the first person. Is N a linear function of t? ----------linear
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Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 72.6 Mbp
Lapatulllka [165]

Answer:

a. 54.05 Mpbs.

b. 2.745... standard deviations.

c. The z-score is 2.745....

d. The carrier's highest data speed is significantly high.

Step-by-step explanation:

a. The difference between the highest measured data speed and the mean is 72.6 - 18.55 =  54.05 Mbps.

b. The amount of standard deviations of 54.05 Mbps is equal to this value divided by the standard deviations, so we yield \frac{54.05}{19.69} = 2.745... standard deviations.

c. The z-score is equal to the difference between the mean and a data point in standard deviations, so the z-score is 2.745....

d. 2.745... is not between -2 and 2, so the carrier's highest data speed is not insignificant - so it's significantly high.

8 0
3 years ago
A potato sorting machine produces 5 pounds of potatoes an average for the standard aviation is a half a pound assuming the weigh
mixas84 [53]
For a 95% confidence interval, the corresponding z-score is 1.96. Therefore the deviation will by 1.96*0.5 lbs = 0.98 lbs. Therefore, the confidence interval will be (5 - 0.98, 5 + 0.98), which is (4.02, 5.98). The weight range is from 4.02 lbs to 5.98 lbs.
5 0
3 years ago
A bag contains 10 red marbles, 15 yellow marbles and 5 green marbles. What is the probability of drawing a red or green marble f
Volgvan
Probability = 

             (number of ways it can come out the way you want)
divided by
             (total number of ways it can come out).

Total number of ways to draw a marble = 30 (marbles in the bag).

Number of ways it can succeed = 15 (number of red or green ones)

Probability = 15/30 = 1/2 = 50% .
8 0
3 years ago
Read 2 more answers
How many gallons of water can fill a pool that is 50 yards by 20 yards and is 9 feet deep? (Assume 7 1/2 gallons per cubic foot.
serg [7]

it would take 10,800 gallons to fill the pool


8 0
3 years ago
Read 2 more answers
Evaluate -6^ 2 - 28 ÷ 4 + (-9).<br><br> 52<br> -52<br> 20<br> -20
kirill [66]
I hope this helps you




-36-7-9


-52
3 0
3 years ago
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