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Questions in mathematics

[Answered] Solve for x. $-2(-3 x+5)-3 x+1=15$

[Answered] Error Analysis: The solution shown for the equation is incorrect. What is the correct solution? What is the error? [tex] \begin{aligned} -4(3-r) & =24 \\ -12-4 r & =24 \\ -4 r & =36 \\ r & =-9 \end{aligned} [/tex] The solution is ____. (Type the value of r.)

[Answered] The boiling point of water is $212^{\circ} F$. The boiling point of helium is $-452^{\circ} F$ How would you compare the temperatures using an inequality? (A) $-452^{\circ} F <212^{\circ} F$ (B) $-452^{\circ} F >212^{\circ} F$ (C) $212^{\circ} F <-452^{\circ} F$ (D) $212^{\circ} F >452^{\circ} F$

[Answered] $2+\frac{2}{5}=\frac{2 x-2}{15}

[Answered] a single power. 2. $\left(-5^5\right)^2$

[Answered] What is the solution to this system of equations? $\left\{\begin{array}{l} -3 x+y=-2 \\ -6 x+2 y=-4 \end{array}\right.$

[Answered] Problems 11-14: Determine whether each function is even, odd, or neither. 11. [tex]f(x)=x^2-2 x^4[/tex] 12. [tex]g(x)=\frac{1}{4} x^6-5 x^2+3 x[/tex] 13. [tex]h(x)=6 x^3-2 x^5[/tex] 14. [tex]k(x)=2 x^3-x^5+1[/tex]

[Answered] Solve the equation. Check your answer. [tex]\begin{array}{l} 1.5 x-0.25-0.5 x-1.75=2.5+2 x \\ x=\square \end{array}[/tex]

[Answered] Solve the equation. [tex]11+10=-3(5 x-7)[/tex]

[Answered] The main cable of a suspension bridge forms a parabola described by the equation [tex]y=a(x-50)^2+6[/tex]. What is the value of [tex]a[/tex]? -0.096 -0.0048 0.0048 0.096