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
frozen [14]
3 years ago
11

Australian glitter ants reproduce so that their population doubles every 15 days. If there are 3 ants initially, the equation is

represented by y=3(2)^t/15, where t represents the number of days. Rewrite the equation in the form y=a(1+r)^t and find the daily increase rate represented by r.
Mathematics
1 answer:
Firlakuza [10]3 years ago
5 0

Answer:

  4.73%

Step-by-step explanation:

  y = 3×2^(t/15) = 3×(2^(1/15))^t = 3×1.0472941^t

In this form, ...

  1 +r = 1.0472941

  r = .0472941 ≈ 4.73%

The daily increase is about 4.73%.

You might be interested in
How can you prove that csc^2(θ)tan^2(θ)-1=tan^2(θ)
Oxana [17]

Answer:

Make use of the fact that as long as \sin(\theta) \ne 0 and \cos(\theta) \ne 0:

\displaystyle \tan(\theta) = \frac{\sin(\theta)}{\cos(\theta)}.

\displaystyle \csc(\theta) = \frac{1}{\sin(\theta)}.

\sin^{2}(\theta) + \cos^{2}(\theta) = 1.

Step-by-step explanation:

Assume that \sin(\theta) \ne 0 and \cos(\theta) \ne 0.

Make use of the fact that \tan(\theta) = (\sin(\theta)) / (\cos(\theta)) and \csc(\theta) = (1) / (\sin(\theta)) to rewrite the given expression as a combination of \sin(\theta) and \cos(\theta).

\begin{aligned}& \csc^{2}(\theta) \, \tan^{2}(\theta) - 1\\ =\; & \left(\frac{1}{\sin(\theta)}\right)^{2} \, \left(\frac{\sin(\theta)}{\cos(\theta)}\right)^{2} - 1 \\ =\; & \frac{\sin^{2}(\theta)}{\sin^{2}(\theta)\, \cos^{2}(\theta)} - 1\\ =\; & \frac{1}{\cos^{2}(\theta)} - 1\end{aligned}.

Since \cos(\theta) \ne 0:

\displaystyle 1 = \frac{\cos^{2}(\theta)}{\cos^{2}(\theta)}.

Substitute this equality into the expression:

\begin{aligned}& \csc^{2}(\theta) \, \tan^{2}(\theta) - 1\\ =\; & \cdots\\ =\; & \frac{1}{\cos^{2}(\theta)} - 1 \\ =\; & \frac{1}{\cos^{2}(\theta)} - \frac{\cos^{2}(\theta)}{\cos^{2}(\theta)} \\ =\; & \frac{1 - \cos^{2}(\theta)}{\cos^{2}(\theta)}\end{aligned}.

By the Pythagorean identity, \sin^{2}(\theta) + \cos^{2}(\theta) = 1. Rearrange this identity to obtain:

\sin^{2}(\theta) = 1 - \cos^{2}(\theta).

Substitute this equality into the expression:

\begin{aligned}& \csc^{2}(\theta) \, \tan^{2}(\theta) - 1\\ =\; & \cdots \\ =\; & \frac{1 - \cos^{2}(\theta)}{\cos^{2}(\theta)} \\ =\; & \frac{\sin^{2}(\theta)}{\cos^{2}(\theta)}\end{aligned}.

Again, make use of the fact that \tan(\theta) = (\sin(\theta)) / (\cos(\theta)) to obtain the desired result:

\begin{aligned}& \csc^{2}(\theta) \, \tan^{2}(\theta) - 1\\ =\; & \cdots \\ =\; & \frac{\sin^{2}(\theta)}{\cos^{2}(\theta)}\\ =\; & \left(\frac{\sin(\theta)}{\cos(\theta)}\right)^{2} \\ =\; & \tan^{2}(\theta)\end{aligned}.

5 0
2 years ago
Who was the<br> President<br> in 1991?
ser-zykov [4K]
George H.W Bush.......................
6 0
3 years ago
Read 2 more answers
Answer the questions pls
Lapatulllka [165]
Here is the solutions for 3-11

7 0
3 years ago
Read 2 more answers
Find the area of the rhombus pls?
zhannawk [14.2K]

Answer:

imagine doing homework

5 0
3 years ago
Read 2 more answers
I need help on this question and i will mark brainlist
Wewaii [24]

Answer:

$11.40

Step-by-step explanation:

just do 1.90 x 6 = 11.40

5 0
3 years ago
Read 2 more answers
Other questions:
  • The inside of the container is 50 cm long, 20 cm wide, and 25 cm tall. How far from the top of the container is the surface of t
    7·1 answer
  • Which of the following could be the system of nonlinear inequalities graphed<br> below?<br> ASAP !!
    9·1 answer
  • What is a requirement of adjacent angles?
    8·2 answers
  • Jubal wrote the four equations below. He examined them, without solving them, to determine which equation has no solution. 7 x +
    11·2 answers
  • Help! I don’t know if I’m right
    11·2 answers
  • Simplify the following expression. (19x + 4y) + (49x + 32y)
    10·1 answer
  • What are the values of x in the equation x-6x + 9= 25?
    8·2 answers
  • A customer has $10 to insert in a jukebox that plays songs for $1 each. When x represents whole numbers less than 10, the functi
    11·2 answers
  • Someone pls help me I will make you brain
    11·2 answers
  • The first equation in the system models the height in feet, h, of a falling baseball as a function of time, t. the second equati
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!