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Questions in mathematics

[Free] Select the correct answer. Which statement is true about this equation? [tex]$-9(x+3)+12=-3(2 x+5)-3 x$[/tex] A. The equation has one solution, [tex]$x=1$[/tex]. B. The equation has one solution, [tex]$x=0$[/tex]. C. The equation has no solution. D. The equation has infinitely many solutions.

[Free] Which of the following expressions is equal to the expression $4 x-2(3 x-9)$? A. $18-2 x$ B. $-10 x-18$ C. $-2 x-18$ D. $10 x-18$

[Free] Solve for x. 0.2x = 124

[Free] Which statements accurately describe the function [tex]f(x)=3(16)^{\frac{3}{4} x}[/tex]? Select three options. A. The initial value is 3. B. The domain is [tex]x\ \textgreater \ 0[/tex]. C. The range is [tex]y\ \textgreater \ 0[/tex]. D. The simplified base is 12. E. The simplified base is 8.

[Free] Anna is no more than 3 years older than 2 times Jamie's age. Jamie is at least 14 and Anna is at most 35. Which system of linear inequalities can be used to find the possible ages of Anna, $a$, and Jamie, $j$? A. $a \geq 3+2 j ; j \geq 14, a \leq 35$ B. $a \leq 3+2 j ; j \geq 14, a \leq 35$ C. $a \geq 3+2 j ; j \leq 14, a \leq 35$ D. $a \leq 3+2 j ; j \leq 14, a \leq 35$

[Free] How does the graph of $g(x)=(x-3)^3+4$ compare to the parent function $f(x)=x^3$? A. $g(x)$ is shifted 3 units to the right and 4 units up. B. $g(x)$ is shifted 4 units to the right and 3 units up. C. $g(x)$ is shifted 3 units to the left and 4 units up. D. $g(x)$ is shifted 4 units to the right and 3 units down.

[Free] Choose the point which is a solution to the following system of inequalities: [tex]\begin{array}{l} x+2 y\ \textgreater \ 6 \ 2 x+y\ \textgreater \ 3 \end{array}[/tex] A. (0,4) B. (-4,0) C. (4,-4)

[Free] Select the correct answer. Kalid simplified a polynomial expression as shown. $\begin{array}{ll} & \left(6 x^3+8 x^2-7 x\right)-\left(2 x^2+3\right)(x-8) \\ \text { step 1 } & \left(6 x^3+8 x^2-7 x\right)-\left(2 x^3-16 x^2+3 x-24\right) \\ \text { step 2 } & 6 x^3+8 x^2-7 x-2 x^3-16 x^2+3 x-24 \\ \text { step 3 } & 4 x^3-8 x^2-4 x-24 \end{array}$ In which step did Kalid make a mistake? A. step 1 B. step 2 C. step 3 D. Kalid did not make a mistake.

[Free] A set of data contains a total of 130 items which are divided into six groups for display on a pie chart. If one group contains 26 items, then the sector representing this group on the pie chart contains an angle at the center of the circle that is: A. 36 B. 60 C. 70 D. 72

[Free] Homework Progress 33 / 95 Marks By rounding to 1 significant figure, estimate the answers to these questions: a) [tex]25 \times 27[/tex] b) [tex]82 \times 235[/tex] c) [tex]576 \times 153[/tex]