Marcella would not be able to win the competition because her kite string (159.75 feet) is less than 162 feet. 
<h3>What is an 
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Trigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle. 
Let l represent the length of the string, hence:
sin(28) = 75/l
l = 159.75 feet
Marcella would not be able to win the competition because her kite string (159.75 feet) is less than 162 feet. 
Find out more on equation at: brainly.com/question/2972832
#SPJ1
 
        
             
        
        
        
72 miles=1 gallon
Step by step Explanation:
Divide 1080 by 15 and divide 15 by 15. You get 72 and one. 
Hope me helped!
        
                    
             
        
        
        
Answer:
50 square units
Step-by-step explanation:
Using the formula provided,  , substituting the height (5), b1 (8) and b2 (12), we can solve for the formula.
, substituting the height (5), b1 (8) and b2 (12), we can solve for the formula.

Hope this helped!
 
        
                    
             
        
        
        
Answer:
C
Step-by-step explanation:
On edge 
 
        
             
        
        
        
Givens
y = 2
x = 1
z(the hypotenuse) = √(2^2 + 1^2)  = √5
Cos(u) = x value / hypotenuse = 1/√5
Sin(u) = y value / hypotenuse = 2/√5 
Solve for sin2u
Sin(2u) = 2*sin(u)*cos(u)
Sin(2u) = 2( ) = 4/5
) = 4/5
Solve for cos(2u)
cos(2u) = - sqrt(1 - sin^2(2u))
Cos(2u) = - sqrt(1 - (4/5)^2 ) 
Cos(2u) = -sqrt(1 - 16/25)
cos(2u) = -sqrt(9/25)
cos(2u) = -3/5
Solve for Tan(2u)
tan(2u) = sin(2u) / cos(2u) = 4/5// - 3/5 = - 0.8/0.6 = - 1.3333 = - 4/3
Notes
One: Notice that you would normally rationalize the denominator, but you don't have to in this case.  The formulas are such that they perform the rationalizations themselves. 
Two: Notice the sign on the cos(2u). The sin is plus even though the angle (2u) is in the second quadrant. The cos is different. It is about 126 degrees which would make it a negative root (9/25)
Three: If you are uncomfortable with the  tan, you could do fractions.
