Complete the chart to find the mean, variance, and standard deviation. remember to use commas and round numbers
to the nearest tenth.
x-x
x-x?
1. 45
= -357.5
the mean is
2.340
=-62.5
the variance is
3.400
= -2.5
the standard deviation is
4. 825
= 422.5
ex=
ex - x)2 = 310,225.2

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.