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Natali5045456 [20]
3 years ago
10

Which expression represents the sum of 8 and twice a number?

Mathematics
1 answer:
disa [49]3 years ago
8 0
All of these answers are wrong? The sum of 8 and twice a number would be 8 + 2n. If it was twice the sum of 8 and a number it would be D. None of them are correct but D is technicllay the closest?
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What is the radius of a circle whose endpoints of a diameter are A(-4, 14) and B (2,8)​
kupik [55]

9514 1404 393

Answer:

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Step-by-step explanation:

The length of the diameter is given by the distance formula:

  d = √((x2 -x1)² +(y2 -y1)²)

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The radius is half the diameter, so the radius of your circle is 3√2.

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If f(x)=2^x-1 and g(x)= x^2-1, determine the value of (f o g)(3)
zimovet [89]

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Step-by-step explanation:

( f o g ) (3) means f(g(3)) so...

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Next: plug 3 into f(x)= 2^(x-1)

2^(3-1) is 2^(2) > 2×2 = 4

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3 years ago
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valentina_108 [34]

Answer:

\large\boxed{\{x\ |\ x>2\}}

Step-by-step explanation:

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Thepotemich [5.8K]

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Yuki888 [10]

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Simplify and write the answer in standard form, a+bi.

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