According to its definition, speed is determined by the distance over time.
This means that based on this definition, the last two options seem to be the plausible answers:
Let’s analyze the third option:
y = (3/2) * (1 / x)
x = 12
y = (3/2) * (1/12) = 3/24 = 1/8
This does not comply with the table
Now let’s assess the fourth option:
y = (96 / x)
x = 12
y = (96/12) = 8
This one fulfills the table's criteria.
conclusion:
y = (96 / x)
The result is 15/4. The equation is 40(5+x)=70*5+0x. When solved: 200+40x=350, which simplifies to 40x=150, therefore x=15/4.
Details provided:
Confidence level = 90%
Mean = 71 beats per minute
Standard deviation = 6 beats per minute
The formula for margin of error is z * δ / √n.
Where δ represents the population standard deviation and n is the sample size; z denotes the corresponding z-value.
For a 90% confidence level, the z-value is 1.645.
Thus, the margin of error is calculated as 1.645 * (6/√80) = 1.645 * (6/8.94) = 1.645 * 0.671 = 1.104.
The distance formula is

. In the ordered pairs (4, 6), the first number 4 represents the
x-coordinate while 6 is the
y-coordinate. In (7, -3), 7 is the
x-coordinate and -3 is the
y-coordinate. Substituting these coordinates results in

. Since subtracting a negative is equivalent to adding a positive, we now have
Answer: 8x - 1200
Step-by-step explanation: I solved the problem