I will say A because there’s 3 people and the company has 9 socials so 9/3 is 3
Answer: the qualifying time in seconds is about 25.3
Step-by-step explanation:
Since the personal best finishing times for a particular race in high school track meets are normally distributed, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = personal best finishing times for a particular race.
µ = mean finishing time
σ = standard deviation
From the information given,
µ = 24.6 seconds
σ = 0.64 seconds
The probability value for the top 15% of finishing time for runners to qualify would be (1 - 15/100) = (1 - 0.15) = 0.85
Looking at the normal distribution table, the z score corresponding to the probability value is 1.04
Therefore,
1.04 = (x - 24.6)/0.64
Cross multiplying by 0.64, it becomes
1.04 × 0.64 = x - 24.6
0.6656 = x - 24.6
x = 0.6656 + 24.6
x = 25.3 seconds
Is their maybe a image that you could show us the irrational Numbers?
Answer:
x² - 4x + 3
General Formulas and Concepts:
<u>Alg I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
Roots: x = 1, 3
Leading Coefficient: 1
<u>Step 2: Write linear roots</u>
(x - 1)(x - 3)
<u>Step 3: Expand by FOIL</u>
x² - 3x - x + 3
<u>Step 4: Combine like terms</u>
x² - 4x + 3
21,900 minutes
60 minutes times 365 days in a year = 21,900
