(x2 +1) (x2-4) (mark as brainiest)
Answer:
Q1) D Q2) The final statement Q3) first statement Q4) (0,14) and (10,1)
Step-by-step explanation:
Q1) in this D has the most points therefore highest correlation
Q2) there is no correlation because the points cannot form a linear line
Q3) it does not touch all points but is extreamly close ans is therefore considered a correct linear correlation.
Q4) these points have the closest linear correlation
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Answer:
5hours
Step-by-step explanation:
At constant speed, distance speed= distance/time taken
therefore, time will be obtained by the division of distance traveled by the speed.
in this question the distance is provided but time is not hence time is calculated as follows. time= distance/time taken
=275miles/55miles/hour
= 5hours
Answer:
225.78 grams
Step-by-step explanation:
To solve this question, we would be using the formula
P(t) = Po × 2^t/n
Where P(t) = Remaining amount after r hours
Po = Initial amount
t = Time
In the question,
Where P(t) = Remaining amount after r hours = unknown
Po = Initial amount = 537
t = Time = 10 days
P(t) = 537 × 2^(10/)
P(t) = 225.78 grams
Therefore, the amount of iodine-131 left after 10 days = 225.78 grams
