Construiti cercurile C1 de centru O1 si C2 de centru O2 tangente interioare in punctul T. Cu ajutorul riglei stabiliti coliniaritatea punctelor O1, O2 si T si apoi aratati ca cele doua cercuri au aceeasi tangenta in punctul T. (trb facut de clasa 6 a)

Analyze the data sets below. data set a 25,25,25,26,26,26,27,28,28,29,30,31,31,32,33,33,34,35,35,35 data set b 25,25,25,26,26,26,26,27,27,27,27,28,28,29,29,30,31,31,32,34 which of the following statement are true? select all that apply. a. data set a is relatively symmetric and data set b is skewed left. b.the means of the data sets are within 3 units from eachother. c.the data sets have the same standard deviation. d.the mean of data set a is 27.95 and the mean of data set b is 30. e. the data set b has a higher standard deviation than data set a. f. the mean and median of data set a are close in value.

This question awards 100 ! i really don’t want to fail i will also mark you !

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2