D is a point on AB, AC=7, AD=6, BC=18
1 answer:
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Answer:
option C
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Step-by-step explanation:
we have
solve for x
Subtract both sides
Divide by both sides
--------> is equivalent to
The solution is the interval--------> [9,∞)
All real numbers greater than or equal to
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Answer:
a ≈ 5.3
Step-by-step explanation:
Using Pythagoras' theorem
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
a² + 6² = 8², that is
a² + 36 = 64 ( subtract 36 from both sides )
a² = 28 ( take the square root of both sides )
a = ≈ 5.3 ( to the nearest tenth )