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1 answer:
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Answer:
≈ 77 cm²
Step-by-step explanation:
The area of the shaded portion is calculated as
area of outer sector - area of inner sector
= (πR² - π r²) × ( R is the outer radius, r is the inner radius )
= (π × 14² - π × 7² ) ×
= (196π - 49π ) ÷ 6
= 147π ÷ 6
≈ 77 cm² ( nearest whole number )
Answer:
See explanation below.
Step-by-step explanation:
We need to prove that there are no solutions of the equation: x =
Let's start trying to solve this equation:
To solve this equation, by factorizing the equation we get:
- Now we're going to substitute these numbers in the original equation:
For x = -6 we have:
x =
<u>But √-36 has no solution in the real numbers and therefore it cannot equal 6.</u>
- Now the second, x = 1
<u>Since the left side is different than the right one, this is not a solution. </u>
Therefore the equation has no solution in the real numbers