exam
Maths Puzzle
Numerical Ability
Is the following a perfect trinomial:
x^2 + 18x + 81
Thank you for the help, these always confuse me!
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exam Other Question
a helicopter makes a forced landing at sea. the last radio signal received C gives teh bearing of the helicopter from C as N 57.7šE at an altitude of 428 feet. an oberver at C sigh
instuctions-solve each system by the graphing method.
this makes no sense and the problem is stright out of the book
y=x
y=6-x