The score on a standardized test for a certain year is modeled using the normal distribution shown below. The mean of the distribution is 71.5 points and the standard deviation is 5.1 points.
In the figure, V is a number along the axis and is under the highest part of the curve.
And. U and Ware numbers along the axis that are each the same distance away from V.

Can someone check my answer? you : )

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?