About % of the area under the curve of the standard normal distribution is outside the interval z= [-0.43, 0.43] (or beyond 0.43 standard deviations of the mean).

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

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

What is the value of x in the following equation? -3x-2=2x+8