What value added to x2 + 2x would complete the square

The area of a rectangle is 60 cm2 If the width of the rectangle is 6 cm, what is its length? Find the perimeter of the rectangle.

Abigail made a quilt that has an area of 4800 square inches. The length of the quilt is 1 1/3 times the width of the quilt. What are the dimensions of the quilt

Create a graph of the sequence of triangular numbers (n) = n (n+1) / 2, where n is a positive integer.

A farmer has two similar cylindrical grain silos used for storing grain during winter. The dimensions of the smaller silo are 3/4 the size of the dimensions of the larger silo. The larger silo has a height of 60 feet and a diameter of 20 feet.

Write the quadratic equation in standard form - 8x+3x^2=-18

Which choice represents the solution for x2 = 676? A) x = 16 B) x = 676 C) x = ± 16 D) x = ± 676

Find all zeros of the function and write the polynomial as a product of linear factors. f (x) = 3x4 + 4x3 + 13x2 + 16x + 4

Which sentence is the most accurate definition of an identity? An identity is an equation that is true for all real numbers. An identity is an equation that is true for all real values in its domain.

How do I simplify - 5 (3p+3) + 9 (-7+p)

Round each number to the place indicated. Draw a number line to support your decision. 1. 0.235; Round to the nearest tenth 2. 3.492; Round to the nearest hundredth 3. 8.0769; Round to the nearest thousandth