Answer:
<h3>2nd Graph</h3>
Step-by-step explanation:
Explanation:
This is because that you could see that every time x increases, y is being multiplied by 2 every time. Also, the number is being multiplied constantly, so it is considered an exponential table. To tell whether if it is a growth or decay, you need to make sure that your y is multiplying and you start actually getting numbers higher. Therefore, it is the second answer
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Answer:
The distance between the two boats after 2.5 hours is 57 m.
Step-by-step explanation:
The distance covered by each boat after 2.5 hours are:
speed = 
distance = speed x time
For boat A, speed = 14 km/h and time = 2.5 hrs.
So that,
distance = 14 x 2.5
= 35 km
For boat B, speed = 18 km/h and time = 2.5 hrs.
So that,
distance = 18 x 2.5
= 45 km
The distance between the two boats after travelling 2.5 hours can be determined by applying the cosine rule. Let the distance be represented by x, so that:
= 
+ 
- 2bc Cos A
= 
+ 
- 2(45 x 35) Cos 
= 2025 + 1225 - 3150 (0)
= 3250
x = 
= 57.0088
x = 57.0 m
The distance between the two boats after 2.5 hours is 57 m.
Rational Numbers
It says that between any two real numbers, there is always another real number. Rational Numbers: Any number that can be written in fraction form is a rational number. This includes integers, terminating decimals, and repeating decimals as well as fractions.
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Answer:
Mutually exclusive
Step-by-step explanation:
