A rectangle’s area is represented by the expression x2 + 5x + 6. Brian believes that the rectangle could have dimensions of either (x + 1) by (x + 6) or (x + 2) by (x + 3). Do you agree or disagree? Justify your opinion.

Thinking The Willowbrook Arch is shaped like a parabola. The arch spans 60 metres across its base and reaches a maximum height of 45 metres. Determine the equation of a quadratic function in standard form that models the shape of the arch.

If an ECG shows ST segment depression, what may be occurring?

Identify the internal root structure labelled C.  

The Equator is a latitude line.

Where is 25ºN latitude, 80ºW longitude? 

What causes the phases of the moon?

Which gene is considered a common tumor suppressor gene?

How do malignant tumors primarily spread to other parts of the body?

Which of the following is a common characteristic of malignant tumors?