Find the indefinite integral. $\int\left(1+u+u^{2}\right) d u$

Graph the linear system and estimate the solution. Then check the solution algebraically.

$$\begin{array}{l} 5 x-2 y=-1 \\ x-3 y=5 \end{array}$$

From each of the following ion concentrations in a solution, predict whether a precipitate will form in the solution. a. $\left[\mathrm{Sr}^{2+}\right]=0.012$ $\mathrm{M},\left[\mathrm{CO}_3{ }^{2-}\right]=0.0015$ $\mathrm{M}$ b. $\left[\mathrm{Pb}^{2+}\right]=0.0012$ $\mathrm{M},\left[\mathrm{Cl}^{-}\right]=0.041$ $\mathrm{M}$

How long ago were the first scientific observations about Earth made?

a. a few years ago

b. a few decades ago

c. hundreds of years ago

d. several thousand years ago

Solve the linear system by using elimination.

$$\begin{array}{l} x-\frac{1}{2} y=\frac{11}{2} \\ -x+4 y=26 \end{array}$$

Perform the operation and write the result in standard form.

$$2 y\left(4-\frac{7}{8} y\right)$$

What is a zoonosis?

Find the approximate side length of each square figure to the nearest whole unit. a mural with an area of

$$18 \mathrm { m } ^ { 2 }$$

Solve the inequality both algebraically and graphically. Draw a number line graph and give interval notation.

$$4(3 x-2) \leq 5 x-9$$

Explain the following observations:

(c) $\mathrm{HBrO}_3$ is a stronger acid than $\mathrm{HBrO}_2$;

To precipitate $\mathrm{Zn}^{2+}$ from $\mathrm{Zn}\left(\mathrm{NO}_3\right)_2(\mathrm{aq})$, add (a) $\mathrm{NH}_4 \mathrm{Cl} ;$ (b) $\mathrm{MgBr}_2 ;$ (c) $\mathrm{K}_2 \mathrm{CO}_3 ;$ (d) $\left(\mathrm{NH}_4\right)_2 \mathrm{SO}_4$.

Write the term (Perimeter / circle / circumference / center), that best completes the below sentence. $\newline$ "The distance around a circle is called the $\underline{\text{\quad ? \quad}}$"

Consider the function defined by $f(x)=-2^{x-1}+8$. Find the x - and y-intercepts analytically, and use the graph from part a to support your answers graphically.

Determine the volume to the nearest whole number. A cuboid with length 24 cm, width 7 cm and height 8 cm.