1 answer:
Answer:
DE = 17.5 cm
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are in proportion , that is
= 
( substitute values )
= 
= 
( cross- multiply )
15 DE = 262.5 ( divide both sides by 15 )
DE = 17.5 cm
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Percentage = 42/120 x 100 = 35%
Answer: 35%
F(6) means f times 6 so f6
Answer:
-2
Step-by-step explanation:
f(-6)=x^2+8x+10
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