Answer: First Option
,
Step-by-step explanation:
We know that the sine function is defined as:
In the same way the cosine function is defined as:
Therefore it is fulfilled that:
Opposite: is the length of the side opposite angle
Adjacent: It is the length of the side that contains the angle of 90 ° and angle A
Hypotenuse: It is the length of the side opposite the angle of 90 °
So:
5 + (-3) - 6
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Let's do the first part
5 + (-3) whenever you see a problem where you add a negative number just think of it as subtracting
5 - 3 = 2
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2 - 6 = -4
-4 is your answer
Total charge at park, T = 2×charge on adults + 4×charge on children .
T =$(2×16 + 4×10)
T = $72
Now, Melissa's father paid $100 .
Amount her father get back is :
A = $( 100 - 72 )
A = $28
Therefore, her father get $28 back.
Hence, this is the required solution.
Andy maximal age= 13.3
Matt maximal age= 21.7
I will translate the problem into 2 equation where X is Andy's age and Y is Matt's age.
Y+5= 2X
Y= 2X-5
X+Y<35
From this equation, it is clear that you won't be able to find their age. But you can find maximal age of Andy and Matt by changing X+Y<35 into X+Y=35
Inserting the first equation to the second equation you will get:
X+Y=35
X+ (2X-5)=35
3X= 35+5=40
X=13.3
X+Y=35
13.3+Y=35
Y= 21.7