What is the standard deviation of the data? The graph represents the distribution of the number of
questions answered correctly on a 50-question math
test.
O4
Math Test Scores
O 8
O 12
O 24
24
28
32
36
40
44
48
X

answer: a

step-by-step explanation:

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(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

r and t.

both are 64 degrees.