Evaluate a+b^2 for a=2 and b=3.
2 answers:
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Answers:
(a) the population function is exponential in the number of years (t) after 2017:
(b) Although the model is defined on a yearly basis, we can answer the question by calculating the projected population at the end of 2018 (t=1) and, under the assumption of same birth rate every month, take half of the yearly increase (end of June):
N(1) = 29890.50
June population:
(c) N(1) = 29891 (see (b) above)
(d) Population in 2025 is the function value at t=2025-2017=8
Answer: 30°
Step-by-step explanation:
1. You know that:
- The length of the ladder is 30 feet.
- The window is located 15 feet above the ground.
2. Then, you can draw a right triangle as the one shown in the figure attached. So, you can calculate the angle asked as following:
Where:
α: the angle of the ladder with the ground.
opposite=15 feet
hypotenuse=30 feet
3. When you substitute values, you obtain:
°
