Evaluate using identity 8.5*9.5
Answers
Answered by
2
Hello Dear!!!
Here's your answer...
Given,
8.5 × 9.5
8.5 can be written as 9-0.5
9.5 can be written as 9+0.5
8.5 × 9.5
(9-0.5) × (9+0.5)
It is in the form of (a+b)(a-b)
=(a) ^2 - (b)^2
(9)^2 - (0.5)^2
81-0.25
80.75
Answered by
1
Answer:
{(100 - 15 )(100-5)}/100
{10000-500-1500+75}/100
8075/100
80.75
Step-by-step explanation:
hope it helps u❤
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