An experiment was made to measure the mean number of axe strikes that is necessary to cut a tree trunk. A total of 16 identical tree trunks were cut by a randomly chosen person, and the following data (number of axe strikes) was collected: 52, 54, 56, 55, 57, 47, 53, 45, 46, 48, 55, 57, 51, 54, 56, 52. Is there sufficient evidence to conclude that the median number of strikes is 50?

In the diagram below, dab and dac are adjacent angles. if mdac = 25°, what is mdab in degrees? what is mbac in degrees?

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Solve the equation by completing the square. x^2+2x=17