With your team, review what you know about seasonal changes on Earth. How do those changes relate to Earth's orbit and the tilt of Earth's axis? Then make a plan for what information about Mars you need to gather to explain seasonal changes on that planet.

Match each description or case by choosing its corresponding disorder: (a) mania, (b) double depression, (c) persistent depressive disorder, (d) major depressive episode, and (e) bipolar I disorder. For the past few weeks, Jennifer has been sleeping a lot. She feels worthless, can't get up the energy to leave the house, and has lost a lot of weight. Her problem is the most common and extreme mood disorder. _____________

Use the Midpoint Rule with n=4 to approximate the area of the region bounded by the graph of f and the x-axis over the interval. Compare your result with the exact area. Sketch the region. $f(x)=3 x^2,[0,1]$

If you have monthly data over a number of years, how many dummy variables will you introduce to test the following hypotheses:

a. All the 12 months of the year exhibit seasonal patterns.

b. Only February, April, June, August, October, and December exhibit seasonal patterns.

(a) Sketch the region enclosed by the curves, (b) describe the cross section perpendicular to the x-axis located at x, and (c) find the volume of the solid obtained by rotating the region about the x-axis.

$$y = x ^ { 2 } ,$$

y = 2x + 3

Fill in the blanks.

Hardening of the arteries:_____________.

Read the definitions below. Write the key term that matches each definition in the column. ____ the buildup of electric charge on an object. ____ charge can be transferred, but not created or destroyed. ____ a region of force around an electric charge within which other charges are attracted or repelled. ____ a material in which electrons are able to move easily. ____ a material in which electrons are not able to move easily. ____ the process of transferring charge by touching or rubbing. ____ electrons on a neutral object are moved by a charged object. ____ a device that detects electric charge.

Do the annual variations in Earth-Sun distance adequately account for seasonal temperature changes? Explain .

Find out the lengths of the unknown sides in the following given pairs of similar triangles .

$$\textbf{\textcolor{#4257b2}{Mixed Review}}$$

Solve for the given replacement set.

$$w + 3911 = 4272\ \ \ \ \{361, 7183, 8183\}$$

Energetic particles, such as protons, can be detected with a silicon detector. When a particle strikes a thin piece of silicon, it creates a large number of free electrons by ionizing silicon atoms. The electrons flow to an electrode on the surface of the detector, and this current is then amplified and detected. In one experiment, each incident proton creates, on average, 35,000 electrons; the electron current is amplified by a factor of 100; and the experimenters record an amplified current of $3.5 \mu \mathrm{A}$. How many protons a re st riking the detector per second?

Specify whether each system is autonomous or nonautonomous, and whether it is linear or nonlinear. If it is linear, specify whether it is homogeneous or nonhomogeneous. $d y / d t=3 y z-2 z, \quad d z / d t=2 z+5 y$

The center angles of a target measure $45 ^ { \circ }$. The inner circle has a radius of 1 ft, and the outer circle has a radius of 2 ft. Assuming that all arrows his the target at random, find the following probabilities. a. Hitting a red region, b. Hitting a blue region, c. Hitting a red or blue region

Determine whether the following statement is true or false. A system of linear equations $Ax=b$ has the same solutions as the system of linear equations $Rx=c$, where $[R$ $c]$ is the reduced row echelon form of $[A$ $b]$.