Why must a scientist keep a complete record of an experiment?

What are the coordinates of the vertex of the parabola y = x² + 4x - 6? ((4, - 6) (-2 - 10) (2, 6) (-4, 6)

Simplify the expression. 7y+3x+3-2y+6 What is the coefficient of y What is the constant

The relative growth rate for a certain type of bacteria population is 85% per hour. A small culture has formed and in just 2 hours the count shows to be 12,500 bacteria in the culture. What is the initial number of bacteria in the culture?

Are the equations m+3=-5 and m=-2 equivalent. Why?

What is the value of y in the solution to the following system of equations? 2x + y = - 4 5x + 3y = - 6 Answer for Blank 1:

Center c of the circle above has coordinates of (4, 3). what is the circumference of the circle?

The perimeter of a rectangle is 68 cm. The length is 4 cm more then it's width. Find the dimensions of the rectangle

Dave buys a baseball for $15 plus an 8% tax. Mel buys a football for $20 plus an 8$ tax. How much did each person pay?

Simplify (-80/-20) -4 4 -40 40

Suppose that the following relations are defined on the set A = {1, 2, 3, 4}. R1={ (2,2), (2,3), (2,4), (3,2), (3,3), (3,4) }, R2={ (1,1), (1,2), (2,1), (2,2), (3,3), (4,4) }, R3={ (2,4), (4,2) }, R4={ (1,2), (2,3), (3,4) }, R5=