Solve x2 + 2x + 7 = 0 using the Quadratic Formula. Select any solutions that apply. SELECT ALL THAT APPLY!
A. x=-1+i√6
o B. x=-1+ √5
C. x = -1- i √6
D. x=-1- √6

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

1. what is the phythaforean theorem? 2.what do we use it for? 1.what is the distance formula ? 2.what do we use it for?

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years