Compare rates of change.A. The equation below can be used to find the length of a foot or forearm when you know one or the other.
(length of the foot) = 0.860 • (length of the forearm) + 3.302
If you let y = length of the foot and x = length of the forearm, this equation can be simplified to
y = 0.860x + 3.302.
Using this equation, how long would the foot of a person be if his forearm was 17 inches long?
B. What is the rate of change of the equation from Part A?
Compare the equation from Part A to your data. Are they the same? Which has a greater rate of change? Why do you think the values are different?
C. Is the relation in your data a function? Why or why not? Could the equation in Part A represent a function? Why or why not? Explain your answer.
Answers
x=foram
A. easy, plug 17 for x and evaluage for y
y=0.860(17)+3.302
y=14.62+3.302
y=17.922 inches
B. rate of change is slope
y=mx+b
m=slope
so
rate or change is 0.860 inches per legnth of forarm
C. what data
D. it is a function
since it is 1st degree (no exponents greater than 1 on the placeholder), and it is not a vertical line
it is a function
Step-by-step explanation:
Part A:
y=0.860x + 3.302
y= 0.860(17) + 3.302
y= 14.62 + 3.302
y= 17.922
Part B:
step 1
y=0.860x + 3.302
y= 0.860(17) + 3.302
y= 14.62 + 3.302
y= 17.922
step 2
y=0.860x + 3.302
y= 0.860(18) + 3.302
y= 15.48 + 3.302
y= 18.782
step 3
18.782-17.922=.86
So, the rate of change is .86
Hope it helps!!
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4 1/2=9/2
Im not sure what u meant but u prob meant the 2nd one
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B. 80 cm is % of 1 m
C. 200 ml is % of 0.5 liters
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second 0.08
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A. 4 km
B. 6 km
C. 8 km
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Answers
Given the average speed of Serena during her trainingand the time elapsed, the total distance that she ran is 16km.
Option D) 16km is the correct answer.
What is speed?
Speed is simply referred to as distance traveled per unit of time.
It is expressed as;
Speed = distance ÷ time
Hence,
Distance = Speed × time; d = r × t
Given the data in the question;
- Speed or rate r = 8km/hr
- Time elasped t = 2hr
- Distance travelled d = ?
From the given formula;
d = r × t
We substitute our given values into the expression above.
d = 8km/hr × 2hr
d = 16km
Given the average speed of Serena during her trainingand the time elapsed, the total distance that she ran is 16km.
Option D) 16km is the correct answer.
Learn more about average speed here: brainly.com/question/12322912
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d= 8 x 2
d = 16 km
D. 16 km