A student figures his chance of passing a history exam is about 0.9 if a question on the origins of the First World War appears. Otherwise his chances of passing is only about 0.7. He thinks there is a 0.6 chance that the question will appear. What is the probability of passing the exam?

Consider the integral: 4 0 16 − y2 − 16 − y2 4 1 x2 + y2 dz dx dy . (a) describe w. use the standard view of the x, y, and z axes. front half of a cone with a rounded top. full cone with a flat top. right half of a cone with a flat top. front half of a cone with a flat top. right half of a cone with a rounded top.

What two criteria are needed for triangles to be similar

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees