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
Bas_tet [7]
3 years ago
11

In 2010, a city population was 55,210 and it was declining at a rate of 1.09 each year. What is the best prediction for when the

city population will first be below 48,000?
2019
2022
2025
2028
Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
5 0
48000=55210(1-0.0109)^t
Solve for t
t=12.77 =13 years
2010+13=2023

So the answer is c
Volgvan3 years ago
5 0

Answer:

The city population will first be below 48,000 in the year:

2022

Step-by-step explanation:

It is given that:

In 2010, a city  population was 55,210

in 2011 the city population will be

(100-1.09)×55210/100=98.91×55210/100

                                  = 0.9891×55210

in 2012 the city population will be

0.9891×0.9891×55210

we have to find number of years t such that

(0.9891)^{t}55210

i.e. the thirteen years from 2010 we will have city population less than 48000

i.e. in the year 2022

You might be interested in
Does anyone know how to solve for a proof like this??? PLEASE PLEASE HELP ME.
Sonbull [250]

You are supposed to make a claim then prove it using evidence you are already given.

5 0
3 years ago
What is the sum of £4(0.5) "1?<br> n=1<br> O S=1.5<br> OS = 2<br> O S = 4.5<br> O S= 8
Lelu [443]
B. 2 …………………………,.,,,,,.,.,.,.,.,,,.,
3 0
3 years ago
Write this as a power of 2. ex ( 2^n) requires knowledge of negative exponents
Snowcat [4.5K]

Answer:

<h3>22.627417</h3>

Step-by-step explanation:

\frac{32}{ \sqrt[8]{16} }  \\

Simplify

\frac{32}{1.414213562}  \\   \\ = 22.627417

Method 2 :

By rationalizing the denominator

7 0
3 years ago
What is the value of x to the nearest tenth? The figure is not drawn to scale
Nataly [62]

Answer:

x=10.5

Step-by-step explanation:

if the two triangles were ratios it would be like

19.3:7.2 to x:3.9

so 75.27 = 7.2x

whcih is 10.45 which is approximately 10.5

8 0
2 years ago
Step by step directions Square root for 480
m_a_m_a [10]
<span>  <span>first off your answer is 21.90 and the step by step i  wrote it for you:) Finding the square root of a number is the inverse operation of squaring that number. Remember, the square of a number is that number times itself. </span> The perfect squares are the squares of the whole numbers. The square root of a number, n, written below is the number that gives n when multiplied by itself.   </span>                                                                                                                                                                          <span>Many mathematical operations have an inverse, or opposite, operation. Subtraction is the opposite of addition, division is the inverse of multiplication, and so on. Squaring, which we learned about in a previous lesson (exponents), has an inverse too, called "finding the square root." Remember, the square of a number is that number times itself. The perfect squares are the squares of the whole numbers: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100 … </span> The square root of a number, n, written <span> is the number that gives n when multiplied by itself. For example,</span> <span>because 10 x 10 = 100</span> Examples Here are the square roots of all the perfect squares from 1 to 100. Finding square roots of of numbers that aren't perfect squares without a calculator 1. Estimate - first, get as close as you can by finding two perfect square roots your number is between. 2. Divide - divide your number by one of those square roots.
3. Average - take the average of the result of step 2 and the root. <span>4. Use the result of step 3 to repeat steps 2 and 3 until you have a number that is accurate enough for you.
</span> Example: Calculate the square root of 10 () to 2 decimal places. <span>1. Find the two perfect square numbers it lies between.
</span> <span><span>Solution:
</span><span>32 = 9 and 42 = 16, so lies between 3 and 4.</span></span> <span>2. Divide 10 by 3. 10/3 = 3.33 (you can round off your answer)</span> <span>3. Average 3.33 and 3. (3.33 + 3)/2 = 3.1667</span> <span>Repeat step 2: 10/3.1667 = 3.1579</span><span>Repeat step 3: Average 3.1579 and 3.1667. (3.1579 + 3.1667)/2 = 3.1623</span> Try the answer --> Is 3.1623 squared equal to 10? 3.1623 x 3.1623 = 10.0001 If this is accurate enough for you, you can stop! Otherwise, you can repeat steps 2 and 3. <span>Note: There are a number of ways to calculate square roots without a calculator. This is only one of them.</span>         <span><span>
</span> </span>
<span>  <span />Example: Calculate the square root of 10 () to 2 decimal places. <span>1. Find the two perfect square numbers it lies between.
</span> <span><span>Solution:
</span><span>32 = 9 and 42 = 16, so lies between 3 and 4.</span></span> <span>2. Divide 10 by 3. 10/3 = 3.33 (you can round off your answer)</span> <span>3. Average 3.33 and 3. (3.33 + 3)/2 = 3.1667</span> <span>Repeat step 2: 10/3.1667 = 3.1579
Repeat step 3: Average 3.1579 and 3.1667. (3.1579 + 3.1667)/2 = 3.1623</span> <span>Try the answer --> Is 3.1623 squared equal to 10? 3.1623 x 3.1623 = 10.0001</span> If this is accurate enough for you, you can stop! Otherwise, you can repeat steps 2 and 3.                             </span> <span> <span><span> <span>   </span></span></span></span>
6 0
3 years ago
Other questions:
  • This need to be correct plzzzzzzzzzzzz I got this answer wrong so send the new one
    12·1 answer
  • What is the distance between points (10,7) and (2,7) on a coordinate plane?<br> please help me
    10·2 answers
  • Helppppppppppppppppppp
    9·1 answer
  • Graph the function y=5x+4
    14·1 answer
  • Adam buys a bigger turkey than he needs. The turkey he buys weighs 7 kg. Below are the cooking instructions for the turkey. Cook
    12·2 answers
  • Please help its for algebra!
    11·1 answer
  • Solve both: 2x + y = 2 and y = 4x - 13
    6·2 answers
  • Given that log x = 3 and log y = 5, find log (x^2)(y^2)- log xy
    7·1 answer
  • A 52-in TV measures 52 inches along its diagonal (corner to corner measure). If that TV is 33.6 inches high, how wide is it?
    8·2 answers
  • What is the slope of a line that is parallel to the line y= 3/4 x + 2?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!