The average person types 38 words per minute with a standard deviation of 7.8 words per minute. Assume typing times are normally distributed. What is the probability that a person chosen at random types between 24 and 35 words per minute?

Find the gradient of f(x, y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15