There should be a question to answer
| x+5 | refers to the absolute value of x+5, which means it is always positive and f(x) is like y, its a variable
so f(-7) means you sub -7 into x in the function, you get
f(-7)= | -7+5 | + (-7) + 5 = |-2| -2 = 2-2= 0
The required rate of change is 53 miles/hr
<h3>What is speed of a particle ?</h3>
The rate of change of position of a particle with respect to time is called speed of that particle.
Speed (Rate of change) = Distance/Time
<h3>What is the required rate of change ?</h3>
For 1st row,
Time = 4 hours
Distance = 212 miles
∴ Rate of change = Distance/Time
= 212/4 miles/hr
= 53 miles/hr
Similarly for 2nd row,
Rate of change = 318/6 miles/hr
= 53 miles/hr
Also for 3rd row,
Rate of change = 424/8 miles/hr
= 53 miles/hr
And for 4th row,
Rate of change = 530/10 miles/hr
= 53 miles/hr
So, here the constant rate of change is 53 miles/hr
From this result, we can say that if time & distance increases, then rate of change remains same for the object, i.e. the speed of the object is constant.
Learn more about speed of object here :
brainly.com/question/734863
#SPJ10
Answer:
C = 6pi cm
Step-by-step explanation:
The circumference of a circle is given by
C = pi *d
C = 6pi cm
Solution:
<u>Note that:</u>
- Percentage formula: x/100 × y = x% of y
<u>Use the formula to solve 20% of 180.</u>
- x/100 × y = x% of y
- => 20/100 × 180
- => 1/5 × 180
- => 36
20% of 180 is <u>36.</u>