Which letter represents the result of subtracting zz from 21?
6
imaginary
A
B
OB
4
o
2-
D
22
real
LE
2
4
8
10
42
Save and Exit
NARI
Submer
Mark this and return

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Which of these triangle pairs can be mapped to each other using two reflections?

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)