The right pyramid shown has a square base, and its lateral faces are triangles. A right pyramid has a square base with 4-centimeter sides and 4 triangular faces. The height of each face is 8 centimeters.

The surface area of the pyramid is
cm2 .

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2