Discuss how the least squares line is used to predict $y$ on the basis of $x.$

There are six categories and 500 observations in a specific chi-square goodness-of-fit test. Use a significance level of .01. How many degrees of freedom are there?

Rewrite $0.007$ as a percent.

The farther you pull a spring beyond its equilibrium point, the more work you do on it.

Write as a percent.

0.16

For the equation, solve for $y$ and identify the new coefficient of $x$ and new constant term.

$9 y-4 x=18$

Howell hopped to the hostel at 5 miles per hour and hobbled back to the helicopter at 2 miles per hour. How far was it to the hostel if the round trip took 28 hours? Begin by drawing a diagram of distances traveled and writing the distance equation.

Give the meanings for the following combining forms.

xer/o ________________

When an equilibrium shifts to the right, what happens to each of the following? a. the concentration of the reactants b. the concentration of the products

A 3.0-cm-tall object is placed 22.0 cm in front of a concave mirror having a focal length of 12.0 cm. Find the image position and height by drawing a ray diagram to scale. Verify your answer using the mirror and magnification equations.

Find the third and seventh terms of the sequence defined by $a_n$ .

$$a_n=n^3-2 n$$

Show that the additive group $\mathbb{Z}$ acts on itself by $z \cdot a=z+a$ for all $z, a \in \mathbb{Z}$.

Give the meaning of the following combining forms.

pupill/o _____________________________________________

Which number in each group is not a prime number? 23, 33, 43