Answer:
arithmetic
Step-by-step explanation:
The points fall on a straight line. They won't do that for a geometric sequence.
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Normally the terms of either sort of sequence are numbered with counting numbers: 1, 2, 3, .... Your x-values are negative, so are obviously not term numbers of a sequence. The differences of x-values are 1, and the differences of y-values are 2.5, so we know the x- and y-values are linearly related. That relationship can be expressed in point-slope form by ...
y = 2.5(x +1) +12.5
which can be simplified to
y = 2.5x +15
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The arithmetic sequence with first term 17.5 and common difference 2.5 would be described by this same equation.
The population triples ( P × 3 ) every ten minutes...
So if ten minutes is reached there will be 1,200 bacteria.
Edited - missed the question
** The units for time should be in minutes.
P = 400 × 3^(t/10)
at t = 0 ; P = 400
at t = 10 ; P = 1,200
When P = 600
600 = 400 × 3^(t/10)
6/4 = 3^(t/10)
Log(3/2) = Log(3^(t/10))
power rule
Log(3/2) = (t/10) Log(3)
10 × Log(3/2)/Log(3) = t
3.69 minutes the population will be at 600 bacteria
Unites for time are in minutes.
Answer:
30
Step-by-step explanation:
The percent grade of the road will be 4.7692%.
<h3>How to calculate the percentage?</h3>
It should be noted that the difference will be:
= (1132 - 1070)/1.3 ÷ 1000
= 62/(1.3 × 1000)
= 62/1300
= 31/650
= 0.047692
Therefore, the percent grade of the road will be 4.7692%.
Learn more about percentages on:
brainly.com/question/24877689
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