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1 answer:
Answer:
92.75 cm^2
Step-by-step explanation:
Area of triangle ADC
= (1/2)×4.5×12 = 27
Area of triangle ACB
=(1/2)×12×5 = 30
Find AB using pythagoras theorem on triangle ABC:
AB^2 = 5^2 + 12^2 = 25 + 144
AB^2 = 169
AB = 13cm
Area of triangle AGB
= (1/2)×13×5.5 = 35.75
Total area = sum of the areas of the 3 triangles found above
= 27 + 30 + 35.75 = 92.75 cm^2
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Answer: The required derivative is 
Step-by-step explanation:
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Differentiating log function w.r.t. x, we get that
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He save $43.58
His final bill would be $80.92
Solution #1:
35/100 × $124.50 = $43.575
When you round $43.575 to the nearest hundredths you will get $43.58
Solution #2:
$124.50 - $43.58 = $80.92
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