Answer:
Answer
Step-by-step explanation:
The spinner points to the red section, but rather aim to land at the yellow or blue sections
Answer:
36) A, 396
37) D, 114 km per lit
Step-by-step explanation:
36) 404 - 8 = 396
37) 112 / 8 = 14
Answer:
30
Step-by-step explanation:
The sample size should be 30 for the given confidence interval of 90%.
Sample size is calculated as follows:
Sample size = Z score ^2 * standard deviation * [ 1 - Standard deviation] / margin of error^2
For the given 90% confidence level, the sample size calculated as;
Sample size = 1.645^2 * 2.3 [1 - 2.3] / 0.01^2
sample size = 30.
Answer:
true
Step-by-step explanation:
Answer:
y = 120x + 3
Step-by-step explanation:
1. Write out basic structure of formula
y = mx + b
y = oz. of water after x hours
m = rate of change
x = number of hours,
b = oz. of water you started with
2. Plug in what you already know
The problem states that the bucket already has 3 oz. of water, so
y = mx + 3
3. Solve for m
2 oz. of water are added to the bucket after 1 minute, making a ratio of 2:1. Since there are 60 minutes in an hour, multiply both parts of the ratio by 60 to get 120:60. This means that every 60 minutes (1 hour), 120 oz. of water are added to the bucket each hour.
4. Complete the equation
You now know that the rate of change is 120 oz. per hour, and that the bucket originally had 3 oz. of water in it, so you can complete the equation:
y = 120x + 3