Some of the steps in the derivation of the quadratic
formula are shown
Which best explains or justifies Step 4b2
Step 3-4--02244
Step 43 -0+ -az-
Step 40 - Landes et = a[v+
factoring a polynomial
multiplication property of equality
converting to a common denominator
addition property of equality
]

99 points at a zoo, the leopard pen has a ring-shaped sidewalk around it. the outer edge of the sidewalk is a circle with a radius of 12 m. the inner edge of the sidewalk is a circle with a radius of 8 m. (1 point for showing all of your work) a. write and simplify an expression for the exact area of the sidewalk. (1 point for the answer) b. find the approximate area of the sidewalk. use 3.14 to approximate π. (1 point for the answer)

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Find the value of x for which abcd must be a parallelogram -9-6x x-30