It depends on what you draw. So I'd like to say C, because you could pull up all the white marbles the first few draws, or none the first few and every other marble. It really depends.
D would be your answer. Since the x is negative the graph is decreasing and -3 is you y-intercept
C. 25
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Divide 400/100=4
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Than divide 4/100
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Answer: 15
Step-by-step explanation: Label the tree with 4m for the height of the tree and the base of the triangle 15m for the shadow it cast. The angle is adjacent to 15m and opposite to 4m making the equation you use tanx=4/15 which when you solve becomes tan^-1(4/15) which gives you 15.
The coefficients are the numbers next to the variable.
11r :- The coefficient is 11
7s :- The coefficient is 7