The lifespans of gorillas in a particular zoo are normally distributed. The average gorilla lives 20.820.820, point, 8 years; the standard deviation is 3.13.13, point, 1 years. Use the empirical rule (68-95-99.7\%)(68−95−99.7%)left parenthesis, 68, minus, 95, minus, 99, point, 7, percent, right parenthesis to estimate the probability of a gorilla living less than 23.923.923, point, 9 years.

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

answer is c

step-by-step explanation:

81/12=324/x

x=48

77

step-by-step explanation: