XY=10
Y=X+3
X(X+3)=10
X^2+3X=10
X^2+3X-10
(X-2)(X+5)
Answer:


Step-by-step explanation:
In the triangle we have the following trigonometric equations:

and also:

We start with the more complicated side which is the left side, and show that, on using some trigonometric identities, we will get the term on the right side .

Using Quotient identity for tangent function, we will get


Taking out sine function from the numerator

Cancelling the common term of numerator and denominator

Answer:
Mode:6
median: 5.5
mean: 5.25
range : 2
Step-by-step explanation: