Answers edited by Rafael

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How do you find the domain and range of $f (x) = \frac{x}{3 x (x - 1)}$ $f(x) = x / (3x(x-1))$ ?
What is the equation of the line with slope $m = \frac{1}{3}$ $m= 1/3$ that passes through $(- \frac{7}{15}, - \frac{5}{24})$ $(-7/15,-5/24)$ ?
How do you solve $7 = 5 e^{0.2 x}$ $7=5e^(0.2x)$ ?
How do you solve the identity $cos 3 x = 4 {cos}^{3} x - 3 cos x$ $cos3x = 4cos^3x - 3cosx$ ?
How do you simplify 5 square root 10 times 2 square root 8?
How do you simplify $cot (x) \cdot sec (x)$ $cot(x) *sec(x)$ ?
Two corners of an isosceles triangle are at $(2, 5)$ $(2 ,5 )$ and $(9, 8)$ $(9 ,8 )$ . If the triangle's area is $12$ $12$ , what are the lengths of the triangle's sides?
How do you solve $9 {cos}^{3} x - 63 {cos}^{2} x + cos x - 7 = 0$ $9 cos^3 x − 63 cos^2 x + cos x − 7 = 0$ ?
If Vector B is added to Vector A , the result is 8.8 i +4.8 j. If Vector B is subtracted from Vector A, the result is -5.6 i + 6.8 j . What is the magnitude of vector A ?
How do you express the phrase "a number z divided by 19" as an algebraic expression?
How do you graph and find the discontinuities of $F (x) = \frac{- 2 x^{2} + 1}{2 x^{3} + 4 x^{2}}$ $F(x) = (-2x^2 + 1)/(2x^3 + 4x^2)$ ?
How do you find the inverse of $f (x) = 6 x - 4$ $f(x) = 6x - 4$ ?
How do you identify the important parts of $x^{2} - 2 x - 8 = 0$ $x^2-2x-8=0$ to graph it?
How do you determine the constant of variation for the direct variation given $y = 8 x$ $y = 8x$ ?
Question #d94de
How do you solve $3 sin x + 2 = 0$ $3sinx + 2 = 0$ from 0 to 2pi?
How do you write an equation of the quadratic function whose graph contains the points (-4,-57), (2, 39), (5, 168)?
How do you solve $x - (\frac{3}{x}) = - 2$ $x-(3/x) = -2$ ?
How do you use synthetic division to divide $(x^{4} + 2 x^{3} - 2 x - 1) \div (x^{3} + 3 x^{2} + 3 x + 1)$ $(x^4 + 2x^3 - 2x - 1) ÷ (x^3 + 3x^2 + 3x + 1)$ ?
How do you prove $(sin + cos) (tan + cot) = sec + csc$ $(sin+cos)(tan+cot)=sec+csc$ ?