What extraneous solution arises when the equation √√x + 3 = 2x is solved for x by first squaring both sides of the equation? A. -1 B. C. 4 D. 1 3 4

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Q: Determine the interval(s) over which the graph of y=x²-4x³ +7 is concave up or concave down. O a.)…

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Q: 3. Multiply. (Simplify your answer completely.) (4x − 5)(4x + 5)

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Q: b) Plot the quadratic y=-2x² + 8x-8, where 0 ≤ x ≤ 4.

A: y=-2x2+8x-8

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Q: which type of function increases by equal factors over equal intervals?

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Q: Below is the graph of y = -x²³. Translate it to make it the graph of y=-(x+2)³ -1.

A: Below is the graph of y=-x3. To translate it to make it the graph of y=-x+23-1.

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Q: A biologist is observing the exponential growth pattern of a virus. She starts with 60 of the virus…

A: a=60r=30%=30100=0.30t=24 hours

Q: . Divide. 27ab^2b^2+21ab-18/3ab

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Q: For functions  f(x) = 3x3 + 1  and  g(x) = 4x2 − 3,  find the following. (Simplify your answers…

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Q: Write an equation for the parabola. Vertex (9, -8), focus (9, -2)

A: A parabola with, Vertex (9, -8) Focus (9, -2)

Q: 17. (9, 3) sin = cos = tan 8 = csc = sec = cot =

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Q: Suppose that $63,000 is invested at 5% interest, compounded quarterly. a) Find the function for the…

A: Compound interest formula  A = P( 1 + rn )nt where  A = Amount after time t  P = Amount invested  r…

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A: The Equation of a straight line passing through two points x1,y1 and x2,y2 is given by…

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Q: 6. Write the equation of a logarithmic function that has been vertically stretched by 4, reflected…

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Q: Given that ₁/2, find x. X = 2 x x + 51° - 11 12

A: Consider the figure

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Q: . Solve by factoring. (Enter your answers as a comma-separated list.) x(x − 1) = x +

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Q: Evaluate the following formula for x₁ = 97.74, X₂=97.44, μ₁ −μ₂ = 0,0₁ = 0.96, ₂=0.73, n₁ = 18, an…

A: z=x1-x2-μ1-μ2σ12n1+σ12n1x1=97.74x2=97.44μ1-μ2=0σ1=0.96σ2=0.73n1=18n2=51

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Q: Use the given information to complete the following table. n(A)=45, n(B) = 60 n(AUB) = 85, n(U)= 110…

A: Given: n(A)=45n(B)=60n(A∪B)=85n(U)=110 We are required to fill the table:   A A' Totals B…