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Questions in mathematics

📝 Answered - Name the property: [tex]$\frac{-11}{16} + \frac{11}{16} = 0$[/tex] i) commutative ii) distributive iii) closure iv) additive inv

📝 Answered - Anita deposited an amount at a bank for a year. At the end of the year, she received an interest of GH \$120.00. If the bank gives an interest of 8% a year, find the amount she deposited.

📝 Answered - Which is a shrink of an exponential growth function? [tex]f(x)=\frac{1}{3}(3)^x[/tex] [tex]f(x)=3(3)^x[/tex] [tex]f(x)=\frac{1}{3}\left(\frac{1}{3}\right)^x[/tex] [tex]f(x)=3\left(\frac{1}{3}\right)^x[/tex]

📝 Answered - Fill in the blank to complete the fundamental identity. [tex]$\sec (-\theta)=$\square[/tex]

📝 Answered - Find the solution(s) of the system of equations: [tex] \begin{array}{l} x^2+y^2=8 \\ y=x-4 \end{array} [/tex]

📝 Answered - Maria, age 28, wants to pay no more than $300 a year in life insurance. What is the face value of the largest 20-year term policy she can buy without spending more than $300 annually? | Age | Annual Insurance Premiums (per $1,000 of face value) | |---|---|---|---|---| | | 10-Year Term | 15-Year Term | 20-Year Term | Whole Life | | | Female | Female | Female | Female | | 28 | 1.28 | 1.54 | 1.89 | 9.46 | A. $234,000 B. $158,000 C. $11,000 D. $567,000

📝 Answered - What's the slope of the line that contains the points (4,8) and (9,8)? What type of line is it? A) The line has no slope; it's a vertical line. B) Slope = 0; horizontal line C) The line has no slope; it's a horizontal line. D) Slope = 0; vertical line

📝 Answered - If [tex]$m(x)=x^2+3$[/tex] and [tex]$n(x)=5x+9$[/tex], which expression is equivalent to [tex]$(m n)(x)$[/tex]? A. [tex]$5 x^3+9 x^2+15 x+27$[/tex] B. [tex]$25 x^2+90 x+84$[/tex] C. [tex]$x^2+5 x+12$[/tex] D. [tex]$5 x^2+24$[/tex]

📝 Answered - Find the H.C.F of: a) [tex]$2 x^2(x+2)(x-2)$[/tex] and [tex]$4 x(x+2)(x+3)$[/tex]

📝 Answered - A parabola, with its vertex at the origin, has a directrix at $y=3$. Which statements about the parabola are true? Select two options. A. The focus is located at $(0,-3)$. B. The parabola opens to the left. C. The $p$ value can be determined by computing 4(3). D. The parabola can be represented by the equation $x^2=-12 y$. E. The parabola can be represented by the equation $y^2=12 x$.