Answer:
x=-5 & y=3
Step-by step explanation:
Answer:
Step-by-step explanation:
weight (x) 
12.05 0.00123
12 0.00019
11.96 0.00292
12.14 0.0159
12.12 0.00112
11.97 0.0019
11.96 0.0029
12.11 0.0092
11.94 0.0055
11.82 0.038
12 0.00019
12.18 0.028
11.91 0.0108
12.06 0.0021
11.99 0.0029

Sample size = 15

Sample standard deviation











replacing our values:



Cos( 30 ) = 19√3 / x
√3 / 2 = 19√3 / x
Simplify √3 from both sides
1 / 2 = 19 / x
Multiply both sides by x
1 /2 × x = 19 / x × x
x / 2 = 19
Multiply both sides by 2
x / 2 × 2 = 19 × 2
x = 38
_____________________________
Sin( 30 ) = y / x
1 / 2 = y / 38
Multiply both sides by 38
38 × 1 / 2 = 38 × y / 38
38 / 2 = y
19 = y
y = 19
Answer:
15
Step-by-step explanation:
the angle is opposite to 60 so it is also 60
60-45 = 15
Hope this helps :)
Yes you should use the first choice