Determine the t-percentile that is required to construct each of the following one-sided confidence intervals: (a) confidence level 95%, degrees of freedom 14 (b) confidence level 99%, degrees of freedom 19 (c) confidence level 99.9%, degrees of freedom 24

a) t(0.95)(one sided)(14 df) = 2.145

b) t(0.99)(one sided)(19 df) = 2.539

c) t(0.999)(one sided)(24 df) = 3.467

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

is this part of a question or something