Answer:
<u>Usain Bolt's average speed in yards per second was 11.4</u>
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
World record of Usain Bolt = 9.589 seconds
Distance of the world record = 100 meters
1 yard = 0.9144 meters ⇒ 100 meters = 109.36 yards
2. What was Usain Bolt's average speed in yards per second?
Let's recall that the formula of speed is:
Speed = Distance/Time
Replacing with the values we know:
Usain Bolt's Speed = 109.36/9.589
<u>Usain Bolt's Speed = 11.4 yards per second (Rounding to one decimal place)</u>
The y answers would be 11, 8, 5, 2, -1.
To find these parts of the table, we simply put the x value in for x and solve for y. The first two are done for you below.
WHEN x = -2
y = -3x + 5
y = -3(-2) + 5
y = 6 + 5
y = 11
WHEN x = -1
y = -3x + 5
y = -3(-1) + 5
y = 3 + 5
y = 8
A function of the form: A = P(1-r)ⁿ [OR if (1-r) <1, the function is decaying1)
1) y = 100(1-1/2)ⁿ = decay because 1-1/2 = 1/2 <1
2) y =0.1(1.25)ⁿ = growth because 1.25 >1
3) y = [(0.03)¹/²]²ⁿ = decay because 0.03¹/² = √0.03 = 0.17 <1
4) y = 426(0.98)ⁿ = decay because 0.98 <1
5) y = 2050(1/2)ⁿ = decay because 1/2 <1
d ≥ -7 ? (ignore.....................................................................................................................................)
Answer:
$1.6 per gallion
Step-by-step explanation: