Simplify (8x2 - 1 + 2x3) - (7x3 - 3x2 + 1). I don't understand what I'm doing wrong.

F a regular polygon has exterior angles that measure approximately 17.14º each, how many sides does the polygon have

Identify the correct property of equality to solve each equation. 3 + x = 27 x 6 = 5

3. Find the compound amount. Round to the nearest cent. Amount: $23,400 Rate: 3% Compounded: semiannually Time (Years) : 10 $31,516.52 $27,156.64 $26,910.00 $31,447.73 4. Find the interest earned. Assume 3.5% interest compounded daily.

The vertex form of the equation of a parabola is x = 8 (y - 1) 2 - 15. What is the standard form of the equation? A:x = 8y^2 - 16y - 7 B. x = 16y^2 - 2y - 16 C. x = 8y^2 - 4y + 32 D. x = 16y^2 - 4y + 32

A group of 10 people ran an average of 2.7 miles in one week. if the first 4 people in the group averaged 3 miles, what did the last 6 people average

How is a relationship determined when looking at a scatterplot?

9/12 in simpilest form

4. The vertical line that passes through the vertex is called the u is the

For the function f (x) = - (x + 1) ^2 + 4, identify the vertex, domain, and range. a. The vertex is (-1, 4), the domain is all real numbers, and the range is y ≥ 4. b. The vertex is (-1, 4), the domain is all real numbers, and the range is y ≤ 4. c.

3[ (5) / (-9) (6) / (-2) ]-2[ (0) / (-2) (2) / (-4) ]