Questions in mathematics

Questions in mathematics

📝 Answered - Solve for $x$ in the equation $x^2+2 x+1=17$ A. $x=-1 \pm \sqrt{15}$ B. $x=-1 \pm \sqrt{17}$ C. $x=-2 \pm 2 \sqrt{5}$ D. $x=-1 \pm \sqrt{13}$

📝 Answered - Solve this simultaneous equation: $\begin{array}{l} 5 x+3 y=9 \ 7 x-4 y=14 \end{array}$

📝 Answered - Express the recurring decimal $0.1 \dot{3} \dot{6}$ as a fraction in its simplest form. Use $x$ in your working.

📝 Answered - Classify this polynomial: [tex]5 x^3+17 x^2-1[/tex] A. linear binomial B. cubic monomial C. cubic trinomial D. constant

📝 Answered - When a book is chosen from a library at random: [tex] \begin{array}{l} P(\text { paperback })=0.46 \\ P(\text { fiction })=0.23 \end{array} [/tex] [tex]P(\text{both paperback and fiction}) = 0.17[/tex] Draw a Venn diagram to work out [tex]P(\text{neither paperback nor fiction})[/tex] as a decimal.

📝 Answered - 4. [tex]$\frac{1}{4} \div 3 \frac{4}{5}$[/tex] 5. [tex]$1 \frac{3}{6} \div 2 \frac{1}{2}$[/tex] 6. [tex]$2 \frac{1}{3} \div 1 \frac{3}{6}$[/tex] 7. [tex]$4 \frac{2}{4} \div 2 \frac{1}{3}$[/tex]

📝 Answered - Select the best answer for the question. 10. Using the order of operations rule, solve the following: 12 + 2 + 4 - 2 × 3 = ? A. 36 B. 4 C. 0 D. 24

📝 Answered - Solve for $w$: $4 sin ^2(w)=\cos (w)-1$

📝 Answered - Multiply. $-\frac{3}{5} \cdot(-7)$ Write your answer in simplest form.

📝 Answered - Which equation represents the line that passes through points $(0,6)$ and $(2,0)$? A. $y=-\frac{1}{3} x+2$ B. $y=-\frac{1}{3} x+6$ C. $y=-3 x+2$ D. $y=-3 x+6$