Let f(t)=t\sqrt{4-t} on the interval

Given f(x)=x^4(2x^2-15). On what interval(s) is the graph of f concave upwards?A. (0, sqrt(3)) B. (-sqrt(3), 0) C. (-sqrt(3), 0)
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2. asked by Sarah
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Find the domain of vector function r (t)= sqrt(4 - t ^ 2) i + sqrt(t) j - 2/(sqrt(1+t)) k. State your answer in interval
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2. asked by Ken
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Given f(x)=4+3/x find all values of c in the interval (1,3) that satisfy the mean value theorem.A. 2 B. Sqrt(2) C. Sqrt(3) D.
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2. asked by Sarah
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Find the domain of the vector function r(t)= sqrt(4 - t ^ 2) i + sqrt(t) j - 2 / (sqrt(1 + t)) k.answer in interval notation
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2. asked by Ken
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The domain of the function $f(x) = \sqrt{25-x^2}+\sqrt{x-2} + \frac{1}{\sqrt{1 - x}}$ is an interval of what width?
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2. asked by alice
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Evaluate sqrt7x (sqrt x-7 sqrt7) Show your work.sqrt(7)*sqrt(x)-sqrt(7)*7*sqrt(7) sqrt(7*x)-7*sqrt(7*7) sqrt(7x)-7*sqrt(7^2)
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2. asked by Alexa
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I need to find the exact solution to:2sin2x = sqrt(x)on the interval (0,pi) This is how I started it, but I don't think it's
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2. asked by Jen
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sqrt 6 * sqrt 8also sqrt 7 * sqrt 5 6.92820323 and 5.916079783 So you can see the steps — sqrt 6 * sqrt 8 = sqrt 48 sqrt 7 *
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2. asked by Tina
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2sin(2theta) + sqrt(3) = 0interval (0,2pi) How do I solve this? I thought about maybe subtracting the sqrt(3) from both sides,
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2. asked by Hannah
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Find the domain of the function $$f(x) = \sqrt{x-2 \sqrt[3]{x-3}}.$$ Express your answer in interval notation.
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2. asked by alice
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