If the population of a country increases at a rate of 1.5% annually, and its current population is 430,000, how many years will it take for the population to triple?

Answers

Answer 1
Answer:

Answer:

Hence, it will take about 73 years  for the population to triple.

Step-by-step explanation:

For this case we have an exponential function P(t) which represents the population at time 't' ; which is given as:

i.e. the equation is represented of the form:

 P(t)=Ab^t

 Where,

 A: initial amount ( Here we have A=430000)

 b: growth rate  (Here we have b=1.015)

 t: time in years.

As the population has to triple over the time.

 Hence, Substituting values we have:

 3* 430000=430000* (1.015)^t

⇒  3=(1.015)^t

Taking logarithmic function on both side we have:

\log3=t\log1.015

( Since \log m^n=n \log m )

⇒  t=(\log 3)/(\log 1.015)\n\nt=73.78876233

Hence, It will take for the population to triple about:

 t = 73 years

Answer 2
Answer: 3p=p(1+0.015)^n
3=(1.015)^n
n=Log(3)/log(1.015)
n=??

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Is -4.67 a rational number

Answers

Answer:

No

Step-by-step explanation:

2. Hessa was playing a computer game. She scored 43 points in Round 1 and 26 points in Round 2. Which sum could she use to add the points together? a. 40 + 20 + 3 + 6 b. 4 + 3 + 2 + 6 c. 40 + 30 + 20 + 60 d. 30 + 4 + 60 + 2

Answers

Answer:

a. 40 + 20 + 3 + 6

Step-by-step explanation:

Points scored by Hessa is as shown below;

Round 1 = 43 points

Round 2 = 26 points

Total points for both rounds = 43 + 26 = 69 points

To determine the sum she could use to add the points together, we must select the sum that will give us the same total of points for both rounds i.e 69 points.

The Round 1 score (43 pt)can also be expressed as (40+3) points

The Round 2 score (26 pt)can also be expressed as (20+6) points

The sum she could use to add the points together will be  (40+3)+(20+6)

which is also equal to  40 + 20 + 3 + 6  = 69points

Hence, option a is correct

HELP with this math QUICK

Answers

x=19
(x+13)=32
(4x-44)=32

Answer:

memers will always dance

Step-by-step explanation:

(I’ll give brainliest)

Answers

Answer:

i cant read it sorry

Step-by-step explanation:

Amanda’s dad is twice as old as she is today. The sum of their ages is 66. Find the ages of Amanda and her dad.

Answers

Let amanda's age be x and her dad's age be y.

Amanda’s dad is twice as old as she,  therefore 2x=y

The sum of their ages is 66, therefore x+y=66

x+y=66

2x=y,

substitute.

2x+x=66

3x=66

Divide.

x=22.

plug it back in, 22+y=66, y=44.

Amanda's age is 22 and her dad's age is 44.

The height of an object after it is released can be modeled by the function f (x) = negative 16 t squared v t s, where t is the number of seconds after the object is released, v is the upward speed in feet per second at release, and s is the starting height in feet. if a quarterback throws a ball from his hand 6 feet in the air at an upward speed of 25 feet per second, how much time does his teammate have to catch the ball?

Answers

The amount of time his teammate have to catch the ball is equal to 1.774 seconds.

Given the following function:

  • f(x) = -16t² + vt + s.
  • Displacement, s = 6ft.
  • Velocity, v = 25 ft/s.

How to calculate the amount of time?

In order to determine the amount of time his teammate have to catch the ball, we would evaluate the given position-time function as follows:

f(t) = -16t² + 25t + 6.

In Mathematics, the standard form of a quadratic equation is given by;

ax² + bx + c =0

Where:

a = -16.

b = 25.

c = 6.

Solving the function by using the quadratic formula, we have:

t = [-b ± √(b² - 4ac)]/2a

t = [-25 ± √[(25² - 4(-16)(6))]/2(-16)

t = [25/32 ± (-1/32)√1009]

t = 25/32 ± (-0.993)

t = 0.781 ± 0.993

t = 0.781 + 0.993

Time, t = 1.774 seconds.

Note: We ignored the negative value because time cannot be negative.

Read more on quadratic equation here: brainly.com/question/1214333

Answer:

B

Step-by-step explanation:

The verified dude saisd so