1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
o-na [289]
3 years ago
7

The population of a city (in millions) at time t (in years) is P(t)=2.6 e 0.005t , where t=0 is the year 2000. When will the pop

ulation double from its size at t=0 ?
Mathematics
1 answer:
lora16 [44]3 years ago
7 0

Answer:

  year 2139

Step-by-step explanation:

The population will double when the factor e^(.005t) is 2.

  e^(.005t) = 2

  .005t = ln(2)

  t = ln(2)/0.005 = 138.6

The population will be double its size at t=0 when t=138.6. That is the population will be about 5.2 million in the year 2139.

You might be interested in
high contrast toggle How many window coverings are necessary to span 50 windows if each window covering is 15 windows long?
raketka [301]
We know that
<span>If each window covering covers 15 windows, and there are a total of 50 windows to be covered,
it will take -------> 50/15=3.33  windows coverings 
</span>So,
you need more than 3 coverings,
and so take the next whole number --------> 4 window coverings

the answer is
4 window coverings

5 0
2 years ago
Translate the algebraic expression shown below into a verbal expression x/10?
sladkih [1.3K]
I believe it is verbally expressed as x divided by ten.
4 0
3 years ago
Nationwide magazine sells 60,000 subscriptions in march at $15 each. the entry is made in march to record the sale of the subscr
katrin [286]
<span>the entry is made in march to record the sale of the subscriptions would include a: </span><span>Credit to unearned subscription revenue for $900,000

in subscription business model, the customers could pay the subscription within a large time period and it would be impossible to predict the exact date when the revenue should be recorded. Therefore, we should recorded is as 'unearned revenue</span>
7 0
3 years ago
Which equation is related to √x+10-1=x ? The square root is over the x+10
Sergio [31]

Answer:

  (b)  x + 10 = x^2 + 2x + 1

Step-by-step explanation:

The equation can be transformed to one without the radical by isolating the radical and squaring both sides.

__

  \sqrt{x+10}-1=x\qquad\text{given}\\\\\sqrt{x+10}=x+1\qquad\text{add 1 to both sides}\\\\x+10=(x+1)^2\qquad\text{square both sides}\\\\\boxed{x+10=x^2+2x+1}\qquad\text{eliminate parentheses}

_____

<em>Additional comment</em>

In typeset formulas, radicals, fraction bars, and superscript formatting serve to group expressions. In plain text, the only available grouping symbol is parentheses.

  \sqrt{x+1}}\ \Rightarrow √(x+1)

3 0
2 years ago
A and b share the cost in a ratio of 3:2. the cost is £85 how much does A pay?
Rufina [12.5K]
A pays 3/5 x 85 = £51,-
b pays 2/5 x 85= £34,-
So the answer is £51,-
8 0
3 years ago
Other questions:
  • Amanda drove 355 miles using 17 gallons of gas. At this rate how many gallons of gas would she need to drive 284 miles?
    7·1 answer
  • A jewelry supply shop buys silver chains from a manufacturer for C dollars each,and then sells the chains at a 40% markup . Writ
    7·1 answer
  • The monthly fees for single rooms at five colleges are $370, $310,$380,$340, and $310, respectively what is the mean of these mo
    6·2 answers
  • I need help with this question... phenobarbital elixir contains 2 grams in 1 liter of elixir. How many milligrams of phenobarbit
    7·2 answers
  • PLEASE HELP IM FAILING!!!!!!
    14·1 answer
  • What is 2gh−(3+7)+ 4 x ​
    10·2 answers
  • Your store cost on a dozen eggs is $0.75, and your retail price is $2.99. You are having a promotion that discounts the
    10·1 answer
  • In the middle school debate club, 30% of the members are in sixth grade. If there are 12 sixth graders in the debate club, how m
    9·2 answers
  • There are 3 white marbles, 4 yellow marbles and 5 blue marbles. What's the probability of having one blue marble when we randoml
    11·1 answer
  • What’s the measure o angle 1 if angle 4 is 155 degrees
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!