Elizabeth puts x dollars into an investment with an interest rate of 6 percent per year and y dollars into an investment with an interest rate of 8 percent per year. She invests a total of $9400, and her interest earnings after one year are $652. From this information, we can create two equations: one for the total investment and one for the interest earned. State both equations, and then solve the system to determine how much Elizabeth invested in each. The equation that describes the total investment is

The equation that describes the interest earned is

Amount invested at 6 percent interest is $

Amount invested at 8 percent interest is $

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.

If angle b measures 25°, what is the approximate perimeter of the triangle below? 10.3 units 11.8 units 22.1 units 25.2 units