Answer:
8/4 or 2
Step-by-step explanation:
2 solutions
Answer:
162.7
Step-by-step explanation:
To find the unit rate you need to find the miles per hour. Since it travels 813.5 miles in 5 hours to find how many it travels in 1 hour you have to divide by 5. When you multiply 813.5 by 5 you get 162.7. Hope it helps
Answer:
The critical value for a 98% CI is z=2.33.
The 98% confidence interval for the mean is (187.76, 194.84).
Step-by-step explanation:
We have to develop a 98% confidence interval for the mean number of minutes per day that children between the age of 6 and 18 spend watching television per day.
We know the standard deveiation of the population (σ=21.5 min.).
The sample mean is 191.3 minutes, with a sample size n=200.
The z-value for a 98% CI is z=2.33, from the table of the standard normal distribution.
The margin of error is:

With this margin of error, we can calculate the lower and upper bounds of the CI:

The 98% confidence interval for the mean is (187.76, 194.84).
(h+g)(x) = 3x + 5 + 6x = 9x + 5Answer
(h - g)(x) = 6x - (3x + 5) = 3x- 5 Answer
(h*g)(x) = 6x(3x + 5) = 18x^2 + 30x
(h*g)(2) = 18(4) + 30(2) = 72 + 60 = 132 Answer
90 × 7 = 630 , it's not hard, it's easy