<span>The problem is as following :
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<span>What is the solutions of 2|x−1|−4= −2
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Solution:
<span>The equation is ⇒⇒ 2|x−1|−4= −2 → add 4 to both sides
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<span>∴ 2|x−1| -4 + 4= −2+4
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<span>∴ 2|x−1|= 2 → divide over 2
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<span>∴ |x−1|= 1
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</span><span>According to absolute rules:
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<span>∴ x-1 = 1 or x-1 = -1
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<span> ∴ x = 2 or x = 0
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<span>∴ x = {0,2}
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So, the solution of the equation is {0,2}
The area of a circle is A=pi(r)^2. Since the diameter is 13, the radius would be 6.5. Doing the formula (3.14)(6.5)^2, the answer would be 132.665.
Answer:
Step-by-step explanation:
circumference for A=2π×12=24π
linear velocity=24π÷6=4π cm/sec
circumference for B=2π×15=30π
linear velocity=30π÷6=5π cm/sec
No solution for the quadratic equation because of the √-20