The function f(x)=(x-1)/(x-4)*sqrt(x+2) is negative

Hello! If you can help me with these 3 questions I would love it!1. How do you simplify sqrt5 + 6 sqrt 5? I think that it is 5
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2. asked by The Great Undertale fanatic
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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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Find the zeros of the function.f(x) = 2x^2-2x-1 Use the quadratic equation x= (2 +- sqrt (4+8))/4 x = 1/2 +- 1/2 sqrt 3 check
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I have a question if someone could help, please explain it.Given b = -1 and h = -1, what is the equation of the graph if the
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Prove: [1/sqrt(2)] [sqrt(a) + sqrt(b)] <= sqrt(a + b) <= sqrt(a) + sqrt(b) for all non-negative real numbers a and b.
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2. asked by Mirie
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find the domain of the real valued function;f(x) = sqrt(5 - (sqrtx)) my solution: 5 - (sqrt x) >=0 -(sqrt x) >= -5 (sqrt x) <= 5
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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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Which function is shown on the graph below?10 8 8642 024681012 / 1 point) O y' = sqrt(2x - 6) - 1 O v = sqrt(2x + 6) + 1 O y =
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2. asked by L
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Find the roots of the function f(x)= x^2+2x+2Determine f(x) a) (x+1-i)(x+1+i) b)(x+1-i sqrt of 2)(x+1+i sqrt of 2)
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A square root function has a domain of x greater than or equal to -4 and range of y grreater than or equal to 2. Which of the
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2. asked by Help Please!
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