Answer:
x = 12
Step-by-step explanation:
The exterior angles of any polygon always add up to 360, so:
Answer: 705m
Explanation:
Using cosine rule:
c²= a²+b²-2abcosC
Substituting:
c²=750²+650²-2(750)(650)cos60
c=√Ans
c= 705.336799..
=705m (nearest metre)
The correct answer is 3418.801
Answer:
-5
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality<u>
</u>
Step-by-step explanation:
<u>Step 1: Define</u>
-4w - 3 = 9
3w + 4
<u>Step 2: Solve for </u><em><u>w</u></em>
- [Addition Property of Equality] Add 3 on both sides: -4w = 12
- [Division Property of Equality] Divide -4 on both sides: w = -3
<u>Step 3: Evaluate</u>
- Substitute in <em>w</em>: 3(-3) + 4
- Multiply: -9 + 4
- Add: -5
For this case, what you need to know is that to model this problem, you must use equations of the potential type:
y = A * (b) ^ t
Where:
A: initial population.
b: growth rate.
t: time.
Substituting values we have:
y = 15200 * (1.02) ^ t
After 10 years we have:
y = 15200 * (1.02) ^ 10
y = 18529
Answer:
An equation to model of the population growth is:
y = 15,200 ∙ 1.02 ^ x
the population after 10 years is:
about 18,529
