Simplify 0.75 (5v+11)-0.25 (11+v)
1 answer:
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Answer:
x= 7.87298334621 x=.12701665379
Step-by-step explanation:
This is in standard form so we have to factor this into
x^2-8x + 16 + 1 = 16
(x-4)^2 = 15
(x-4) =
x-4= ± 3.87298334621
x-4 = 3.87298334621 x-4= -3.87298334621
x= 7.87298334621 x=.12701665379
Answer:
EF = 8.8 cm
Step-by-step explanation:
In the given right angled ΔDEF, DE is the hypotenuse while EF and DF are adjacent sides. So that applying the Pythagoras theorem, we have;
=
+
=
+
=
+
262.44 = + 184.96
= 262.44 - 184.96
= 77.48
EF =
= 8.8023
EF = 8.8 cm
The length of side EF is 8.8 cm.