Questions in mathematics

Questions in mathematics

📝 Answered - Solve the system of equations. [tex] \begin{array}{l} y=-5 x-8 \\ y=4 x+1 \end{array} [/tex] a. (1,-3) b. (-1,-3) c. (3,1) d. No solution

📝 Answered - What's the least common denominator (LCD) for the group of fractions: [tex]$\frac{8}{5}, \frac{11}{30}$[/tex], and [tex]$\frac{3}{5}$[/tex] ? Select one of four: A. 15 B. 45 C. 30 D. 60

📝 Answered - Simplify the expression. Write your answer as a complex number. [tex]2 \sqrt{25}+\sqrt{-16}[/tex]

📝 Answered - Work out $3 \frac{2}{5} \times 10$. Give your answer in its simplest form.

📝 Answered - $\begin{array}{l} y=-5 x+30 \\ x=10 \end{array}$ What is the solution to the system of equations? A. $(-20,10)$ B. $(10,-20)$ C. $(10,4)$ D. $(4,10)$

📝 Answered - Find the equation of the line passing through the points $(3,3)$ and $(4,5)$. y=[?] x+[]

📝 Answered - Looking at this table of sample means, which value is the best estimate of the mean of the population? | Sample | Sample Mean | |---|---| | 1 | 154 | | 2 | 121 | | 3 | 160 | | 4 | 135 | | 5 | 140 | | 6 | 134 | | 7 | 129 | A. 120 B. 136 C. [tex]$16 n$[/tex] D. 168

📝 Answered - $10n + 16 = 6n +

📝 Answered - On which triangle can the law of cosines be applied once to find an unknown angle measure? Law of cosines: [tex]a^2=b^2+c^2-2 b c \cos (A)[/tex]

📝 Answered - Write $1011.101_2$ as base 10 number.