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qaws [65]
3 years ago
9

HELP ASAP GIVING BRANLIST 100 POINTS!!

Mathematics
2 answers:
musickatia [10]3 years ago
6 0

Rate of change = difference in y over difference in x.

Rate of change = (33-20)/(3-1) = 13/2

Rate of change = (48-33) /(5-3) = 15/2

The rates are not the same so it isn’t linear.

The rate of change for x=3 and x = 5 is greater.

Oksana_A [137]3 years ago
5 0

Answer:

see below

Step-by-step explanation:

We use the slope formula

m= (y2-y1)/(x2-x1)  for x=3 and x=1

   = (33-20) / (3-1)

    =13/2

m= (y2-y1)/(x2-x1)  for x=5 and x=3

   = (48-33) / (5-3)

    =15/2

The average rates are not the same

The change from 3 to 5 is higher

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Step-by-step explanation:

You want to find x when c = 120.

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3 years ago
The picture shows the footprints of a man walking. The pace length P is the distance between the rear of two consecutive footpri
Rina8888 [55]

Bernard’s walking speed is 140 meters per minute

Bernard’s walking speed is 8.4 kilometers per hour

Step-by-step explanation:

The pace length P is the distance between the rear of two consecutive footprints

The formula, n P = 140, gives an approximate relationship between n and P where,

  • n = number of steps per minute
  • P = pace length in meters
  • Bernard knows his pace length is 0.80 meters
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We need to calculate Bernard’s walking speed in meters per minute and in kilometers per hour

∵ n = number of steps per minute

∴ n unit is number / minute

∵ P = pace length in meters

∴ P unit is meter

- That means n P unit is meters/minute

∴ n P represents the speed in meters per second

∵ The formula applies to Bernard’s walking

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∴ n(0.8) = 140

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∵ The distance he walks in minute = 175 × 0.8 = 140 meters/minute

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Bernard’s walking speed is 140 meters per minute

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∴ His walking speed = \frac{140}{1000} ÷ \frac{1}{60}

- Change ÷ to × and reciprocal the fraction after the division sign

∴ His walking speed =  \frac{140}{1000} × \frac{60}{1} = 8.4 km/h

Bernard’s walking speed is 8.4 kilometers per hour

Learn more:

You can learn more about the speed in brainly.com/question/5461619

#LearnwithBrainly

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