Answer:
Difference: 4-(-18)=22
=22 degrees celcius
Lowest temperature: 12 degrees higher that -18 degrees
= 12+(-18)
= -6 degrees celcius.
Step-by-step explanation:
Answer:
0.57142
Step-by-step explanation:
A normal random variable with mean and standard deviation both equal to 10 degrees Celsius. What is the probability that the temperature at a randomly chosen time will be less than or equal to 59 degrees Fahrenheit?
We are told that the Mean and Standard deviation = 10°C
We convert to Fahrenheit
(10°C × 9/5) + 32 = 50°F
Hence, we solve using z score formula
z = (x-μ)/σ, where
x is the raw score = 59 °F
μ is the population mean = 50 °F
σ is the population standard deviation = 50 °F
z = 59 - 50/50
z = 0.18
Probability value from Z-Table:
P(x ≤59) = 0.57142
The probability that the temperature at a randomly chosen time will be less than or equal to 59 degrees Fahrenheit
is 0.57142
Answer:
A
Step-by-step: hpe it heps
Step-by-step explanation:
8x² + 8x - 21 = 0
8(x² + x) - 21 = 0
8(x + 0.5)² - 23 = 0
8(x + 0.5)² = 23
(x + 0.5)² = 23/8.
SI = P × R × T
SI = 1000 × 6/100 × 2 = $120
