Answer:
x = 40
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
x² + 30² = 50²
x² + 900 = 2500 ( subtract 900 from both sides )
x² = 1600 ( take the square root of both sides )
x = = 40
Work out 2/21 + 6/7 Give your answer in its simplest form.
2 answers:
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Answer:
WV = 42
Step-by-step explanation:
Δ UVW and Δ XYW are similar ( by the AA postulate ) , then the ratios of corresponding sides are in proportion, that is
=
( substitute values )
=
( cross- multiply )
15 WV = 630 ( divide both sides by 15 )
WV = 42
