Questions in mathematics

Questions in mathematics

[Jawaban] What fraction is closest to [tex]\frac{3}{4}[/tex]? A. [tex]\frac{2}{3}[/tex] B. [tex]\frac{3}{5}[/tex] C. [tex]\frac{7}{10}[/tex] D. [tex]\frac{13}{20}[/tex] Show your working, please.

[Jawaban] Is [tex]4xy + 2y = 9[/tex] linear? If yes, write the equation in standard form and determine the x- and y-intercepts.

[Jawaban] Prove the identity: \[ \cos(3x) + \cos(x) = 2\cos(2x)\cos(x) \]

[Jawaban] What is \(0.2\) as a whole number?

[Jawaban] What is the solution to the inequality \( 8 - \frac{4}{5}f > -14 - 2f \)?

[Jawaban] If 120 marks is 60%, what are the full marks?

[Jawaban] Solve the inequality: \(4 < n + 2\). First, solve the inequality for \(n\): 1. Subtract 2 from both sides: \[ 4 - 2 < n + 2 - 2 \] \[ 2 < n \] In words, the solution to the inequality \(4 < n + 2\) is that \(n\) must be greater than 2.

[Jawaban] can someone help me with number 25

[Jawaban] What is the value of \( f(-4) \) in the piecewise function? \[ f(x) = \begin{cases} -x - 5 & \text{for } -5 \leq x \leq -2 \\ -x^2 + 1 & \text{for } -2 < x \leq 2 \\ (x-3)^2 + 2 & \text{for } 2 < x \leq 4 \end{cases} \] (Note: Make sure the intervals make sense and check if \( x = -4 \) falls within one of the specified intervals.)

[Jawaban] How many hundredths are in 0.5?