Answer:
40
Step-by-step explanation:
use slope formula (4-12)/(7-21) = 8/14 (8/14)*70 = 40
<span>Answer:
Let P be the proportion of correct results of all polygraph results
H0: P ≥ 0.80
Ha: P < 0.80
Estimated p = 74 / 98 = 0.7551
Variance of proportion = p*(1-p)/n
= 0.8(0.2)/98 =0.0016327
S.D. of p is sqrt[0.001633] = 0.0404
z = ( 0.7551 - 0.8 ) / 0.0404 = -1.1112
P-value = P( z < -1.1112) = 0.1335
Since the p-value is greater than 0.05, we do not reject the null hypothesis. Based on the results there is no evidence that polygraph test results should be prohibited as evidence in trials.</span>
Oliver traveled 124.25 miles in 3.5 hours at a constant speed
Rate = 124.25 / 3.5 = 35.5 miles per hour (MPH)
Answer:
The constant of proportionality is 35.5 miles per hour (MPH)
The figure is a parallelogram.
