Fill in the blank(s) using elementary row operations to form a row-equivalent matrix.

$$\left[\begin{array}{rrrr}{1} & {1} & {4} & {-1} \\ {3} & {8} & {10} & {3} \\ {-2} & {1} & {12} & {6}\end{array}\right] \\ \left[\begin{array}{cccc}{1} & {1} & {4} & {-1} \\ {0} & {5} & {?} & {?} \\ {0} & {3} & {?} & {?}\end{array}\right] \\ \left[\begin{array}{llll}{1} & {1} & {4} & {-1} \\ {0} & {1} & {?} & {?} \\ {0} & {3} & {?} & {?}\end{array}\right]$$

D. Write the correct form of each verb in the space provided.

1. Lolis _____________________ (correr) en el parque todos los dias.

Find the first partial derivatives of the following functions. f(x, y)=ln (x/y)

Prove each polynomial identity. $(2 x+1)(3 x+1)+(x-1)=6 x(x+1)$

Which order of integration would you use to find the area of the region bounded by the x-axis and the lines y=2x+3 and y=3x-4 using a double integral?

Identify the vertex and axis of symmetry of the graph of each function. h(x) = (x - 5)² - 2

Haz las preguntas usando las siguientes palabras: la biodiversidad / la sequía / el petróleo / la erosión / la inundación / el aire puro
cuando llueve demasiado

Find each quotient. −35 ÷ 5

Solve each system of equations using the method of substitution or the method of elimination. If the system has no solution, say that it is inconsistent.

$$\left\{\begin{array}{l}{y=2 x-5} \\ {x=3 y+4}\end{array}\right.$$

Find the union of the sets.

$$\{ a , e , i , o , u \} \cup \emptyset$$

(a) determine the domain of the function, (b) find all intercepts, if any, of the graph of the function, and (c) identify any asymptotes of the graph of the function. $f(x)=8^{-x+1}+2$

Factor each expression.

$$2 x ^ { 2 } + 13 x + 6$$

What advantages did the Haitian slaves have over the French soldiers?

Simplify the expression.

$$-12n^3/5·n^4/3$$