Answer:
X. The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!
Step-by-step explanation:
B) m= 1/2
you would use slope formula to find what line passes through those coordinates
Answer:
see explanation
Step-by-step explanation:
ΔABE and ΔACD are similar hence the ratios of corresponding sides are equal, that is
=
= 
Using the first pair of ratios then
= 4 =
, hence
4ED = 26 ( divide both sides by 4 )
ED = 6.5 cm
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(b)
Similarly
= 4, hence
BE = 4 × 18 = 72 cm
Answer:
you should try adding then subtractung the total to the part