Answer:
EH = 9.4
Step-by-step explanation:
A rhombus is a quadrilateral with equal length of sides.
Given that, EF = 13 and DF = 18
⇒ DH = HF = 
= 9
The property that the diagonals of a rhombus are at right angle to each other.
Thus, applying the Pythagoras theorem, we have;
= 
+ 
= 
+ 
= + 
169 = + 81
= 169 - 81
= 88
EH = 
= 9.381
The length EH is 9.4
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Answer:
Step-by-step explanation:
discriminant = (-13)² - 4·2·15 = 49
discriminant > 0 so there are two real roots
Answer:
(See explanation for further details).
Step-by-step explanation:
C) The linear system is:
After some algebraic handling:
By direct substitution:
D) The parameter values are: , ,
E) The quadratic equation is 
