A10-foot ladder is leaning against a tree. the bottom of the ladder is 4 feet away from the bottom of the tree. about how high up the tree does the top of the ladder reach?

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.

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?