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➷ A variable is an unknown number that is represented by a letter, for example, x.
It is usually found in an algebraic expression.
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TROLLER
Answer:
CE= 9cm, DE= 5cm, CD= 10.2956cm
Step-by-step explanation:
Let E be the point of the other triangle.
Using Pythagoras' Theorem,
CD= square root symbol (CE^2 + DE^2)
= square root symbol (9^2+5^2)
= 10.2956cm (6 sf)
Answer:
20
Step-by-step explanation:
(6x3=18) (6x1/3=2) (18+2=20)
Answer:
π 
Step-by-step explanation: diameter=10 in
radius=
=
=5 in
volume=

=
x π =
π 
Answer: b
Step-by-step explanation: death normally last 9 min and birth 9 sec