Answer:
60 degrees
Step-by-step explanation:
I believe in the triangle it says 57 degrees so if you round 57 to the nearest tenth you get 60 so it would be 60 degrees
Answer:
y = -1
x = -1
Step-by-step explanation:
Answer:
use the pythagoras theorem
Step-by-step explanation:

Given:
Sample size, n = 40
Sample mean, xb = $6.88
Population std. deviation, σ = $1.92 (known)
Confidence interval = 90%
Assume normal distribution for the population.
The confidence interval is
(xb + 1.645*(σ/√n), xb - 1.645*(σ/√n)
= (6.88 + (1.645*1.92)/√40, 6.88 - (1.645*1.92)/√40)
= (7.38, 6.38)
Answer: The 90% confidence interval is (7.38, 6.38)
The final amount in the account after 25 years is $24670.42.
<h3>
How do you calculate the final Amount after 25 Years?</h3>
Given that 3400 dollars are placed in an account with an annual interest rate of 8.25% for 25 years.
The final amount in the account is calculated by the formula given below.

Where A is the final amount, P is the initial principal balance, R is the interest rate, T is the time period.
The final amount is given below.



Hence we can conclude that the final amount in the account after 25 years is $24670.42.
To know more about the compound interest, follow the link given below.
brainly.com/question/25857212.