Divide: $31_{\text { seven }} \sqrt{2426_{\text { seven }}}$.

How might LH level and ovulation be related?

A car travels $d(t)=10 t^{2}$ feet in the first t seconds after it starts moving. Calculate the average velocity of the car by evaluating $\frac{\Delta d}{\Delta t}$ on the following intervals. a. $3 \leq t \leq 4$ b. $3 \leq t \leq 3.1$ c. $3 \leq t \leq 3.01$ d. $3 \leq t \leq 3.001$ e. $2.99 \leq t \leq 3$ f. $2.999 \leq t \leq 3$ g. Estimate the exact velocity of the car three seconds after it starts.

In the context of a survey, what is bias?

Two point charges are locate on the x-axis: a charge of +6.. nC at x=0 and an unknown charge q at x=0.50 m. No other charges are nearby. If the electric field is zero at the point x=1.0 m, what is q?

Simplify the given expression.

$$\left(\sqrt{y^{\frac{1}{4}}}\right)^{8}$$

Find each value. Round to the nearest tenth if necessary.

Simplify each expression. State any excluded values.

$$\frac { 5 - x } { x ^ { 2 } - 2 x - 15 }$$

Suppose $f(x)=a x^{2}+b x+c,$ where a, b, and c are real numbers and $|f(x)| \leq 1$ for $|x| \leq 1,$. Show that $\left|f^{\prime}(x)\right| \leq 4$ for $|x| \leq 1$.

Name the following ionic compounds:

$$CaSO_3$$

Find the particular solution of the linear system that satisfies the stated initial conditions.

$$\begin{array}{l}{x^{\prime}=3 x+5 y} \\ {y^{\prime}=-2 x+5 y} \\ {x(0)=5, y(0)=-1}\end{array}$$

Solve each equation by the square root property.

$$2 x ^ { 2 } - 3 = 125$$

Solve the given initial value problem for y = f(x). $\frac{d y}{d x}=\frac{\ln \sqrt{x}}{x}$ where y = 2 when x = 1

There are 3 apples, 4 oranges, and a pear in a bag. Determine each probability. You select an apple, then an orange, and then another apple without replacement.