OMG I REALLY NEED YOUR HELP PLEASE!! my question is Triangles ABC and DEF are similar. Find the length of EF. (Express your answer in two decimal places)

And the other question is
Triangles ABC and DEF are similar. Find the length of DF. (Express your answer in two decimal places) they have both the same images PLEASE HELP ME IM LITERALLY BEGGING YOU PLEASE!

Tiara buys the pizza shown below: a circular pizza is shown. the edge of one slice is marked ab. what does the curve ab represent?

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4

Needmax recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.