Asoundproofing tile is made of 8 identical solid right pyramids with square bases. the length of the whole tile shown is x inches. which expression shows the area of the base of each pyramid? a. 1/3x^2 in.2 b. 1/4x^2 in.2 c. x2 in.2 d. 1/2x^2 in.2 a solid right pyramid has a square base with an edge length of x cm and a heigt of y cm. which expression represents the volume of the pyramid? a. 1/3x2y cm3 b. 1/2xy2 cm3 c. 1/3xy cm3 d. 1/2x2y cm3 this is all the info i am given

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

Which of the following statements must be true about this diagram? check all that apply. x°, y°, z°, & w°

What is the measure of angle a and angle c ?