Answer:
Step-by-step explanation:
Looking at the diagram,
Line DT is parallel to line line BM, therefore, triangle DHT is similar to triangle BHM. This means that
DH/DB = TH/MH
DH = 15 + 6 = 21
TH = 9 + x
Therefore
(9 + x)/21 = 9/6
Cross multiplying, it becomes
6(9 + x) = 21 × 9 = 189
54 + 6x = 189
Subtracting 54 from the left hand side and the right hand side of the equation, it becomes
6x + 54 - 54 = 189 - 54
6x = 135
Dividing the left hand side and the right hand side of the equation by 6, it becomes
6x/6 = 135/6
x = 22.5
Answer: -5
Step-by-step explanation: alrite so when u graph it, the line crosses -5 on the y axis
Answer:
B) trapezoid is the right answer
Step-by-step explanation:
usatestprep my boy
Answer:20,24,28,32
Step-by-step explanation:
Answer: a) 0.7878, b) 0.8723
Step-by-step explanation:
Since we have given that
Nicotine present Nicotine absent
Self-reported non smoker 82 14
Self-reported smoker 12 52
(a) What is the sensitivity of the self-reported smoking status?

(b) What is the specificity of the self-reported smoking status?

Hence, a) 0.7878, b) 0.8723