Identify the y-intercept of the graph. ( look at picture)

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125

What is the area of the triangle 10 13 12

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.