What is an equation of a line, in point-slope form, that passes through (1, −7) and has a slope of −2/3 ? a)y−7=2/3(x−1) b)y+7=−2/3(x−1) c)y+7=2/3(x+1) d)y−7=−2/3(x+1)

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4