Dana enjoys taking her dog for a walk, but sometimes her dog gets away and she has to run after him. dana walked her dog
for 7 miles but then had to run for 1 mile, spending a total time of 2.5 hours with her dog. her running speed was 3 mph
faster than her walking speed. find her walking speed.

If a translation of t-3,-8(x, y) is applied to square abcd what is the y-coordinate of b'? the y-coordinate of is 43 mark this and return save and exit next submit

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.

If the class creates a histogram of the data in table, how many students are in the range 12cm to 13.9 cm