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(0.2 xx 0.2 + 0.01) (0.1 xx 0.1 + 0.02)^...

`(0.2 xx 0.2 + 0.01) (0.1 xx 0.1 + 0.02)^(-1)` is equal to

A

A) `(5)/(3)`

B

B) `(41)/(12)`

C

C) `(41)/(4)`

D

D)`(9)/(5)`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the expression `(0.2 x 0.2 + 0.01) (0.1 x 0.1 + 0.02)^(-1)`, we will follow the order of operations (BODMAS/BIDMAS). ### Step-by-Step Solution: 1. **Calculate the first bracket:** \[ 0.2 \times 0.2 + 0.01 \] - First, calculate \(0.2 \times 0.2\): \[ 0.2 \times 0.2 = 0.04 \] - Now, add \(0.01\): \[ 0.04 + 0.01 = 0.05 \] 2. **Calculate the second bracket:** \[ 0.1 \times 0.1 + 0.02 \] - First, calculate \(0.1 \times 0.1\): \[ 0.1 \times 0.1 = 0.01 \] - Now, add \(0.02\): \[ 0.01 + 0.02 = 0.03 \] 3. **Find the inverse of the second bracket:** \[ (0.03)^{-1} \] - The inverse of \(0.03\) is: \[ \frac{1}{0.03} = \frac{100}{3} \] 4. **Combine the results:** Now substitute back into the original expression: \[ 0.05 \times \frac{100}{3} \] - Convert \(0.05\) to a fraction: \[ 0.05 = \frac{5}{100} = \frac{1}{20} \] - Now multiply: \[ \frac{1}{20} \times \frac{100}{3} = \frac{100}{60} = \frac{5}{3} \] ### Final Answer: The expression evaluates to: \[ \frac{5}{3} \]
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