Answer:
The slope is 2/1
Step-by-step explanation:
Answer:
ga = 14
gb = 17
Explanation:
It's just simply replacing the empty spaces (let's call those x) and doing the necessary operations. If I gave you T = 10 + x, T would be equal to 10x. Similarly, in the first problem we replace x with the given number g and then do all our operations (T = 10 + g(4)), in the second one, we also have to remember that the formula to calculate T is T = 10 + g. Knowing that, we replace the first blank (y) with 10, and the second blank with our given number g. I hope you do well :D
Answer:
78.383%
Step-by-step explanation:
The pH of randomly selected swimming pools follows a normal distribution with mean 7.4 and standard deviation 0.22. A pool should have a pH between 7.2 and 7.8 so that chlorine treatment is effective.
Using z score formula
z = (x-μ)/σ, where
x is the raw score
μ is the population mean
σ is the population standard deviation.
For x = 7.2
z = 7.2 - 7.4/0.22
z = -0.90909
Probability value from Z-Table:
P(x = 7.2) = 0.18165
For x = 7.8
z = 7.8 - 7.4/0.22
z = 1.81818
Probability alue from Z-Table:
P(x = 7.8) = 0.96548
The probability of pools having an acceptable pH level(7.2 and 7.8)
= P(x = 7.8) - P(x = 7.2)
= 0.96548 - 0.18165
= 0.78383
Converting to percentage
0.78383 × 100
= 78.383%
The percentage of pools having an acceptable pH level is 78.383%
It sounds like the problem should read: "A 10-sided die is rolled. The die's faces are labeled with the numbers 1 through 10, and each number is equally likely to be rolled. Find the probability of rolling an even number. What is the probability of rolling an even number?"
If that is the case, then the answer as a fraction is 1/2 which is 0.5 in decimal form
How did I get this answer? There are 10 values (1, 2, 3, 4, 5, 6, 7, 8, 9, 10). Of that list, five values are even (2, 4, 6, 8, 10). Divide the two values
5/10 = 1/2 = 0.5
