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
Elenna [48]
3 years ago
6

Aleksandra started studying how the number of branches in her tree grows over time. Every 1.5 years, the number of branches incr

eases by an addition of 2/7 of the total number of branches. The number of branches be modeled by a function, N, which depends on the amount of time, t (in years).
when aleksandra began the study, her tree had 52 branches.

Write a function that models the number of branches t years since aleksandra began studying her tree.
Mathematics
1 answer:
vova2212 [387]3 years ago
7 0

Answer:

N = 52 * (9/7)^(t/1.5)

Step-by-step explanation:

This problem can be modelated as an exponencial problem, using the formula:

N = Po * (1+r)^(t/1.5)

Where P is the final value, Po is the inicial value, r is the rate and t is the amount of time.

In our case, we have that N is the final number of branches after t years, Po = 52 branches, r = 2/7 and t is the number of years since the beginning (in the formula we divide by 1.5 because the rate is defined for 1.5 years)

Then, we have that:

N = 52 * (1 + 2/7)^(t/1.5)

N = 52 * (9/7)^(t/1.5)

You might be interested in
Which equation represents the relationship shown in the table?
Mila [183]
Y=4x because 20/5 equals 4
5 0
3 years ago
Read 2 more answers
The base diameter and the height of a cone are both equal
vampirchik [111]

Answer:

1/3 times x squared divided by 4 times pi times x.

Step-by-step explanation:

Hope this helps!

6 0
3 years ago
0.2(x+50)-6=0.4(3x+20)
podryga [215]
Distrivute 0.2 to x and +50 and you get 0.2x+10-6  now for the other side we do the same and we get 1.2x+8 or an easier way...  Let's solve your equation step-by-step.<span><span><span>0.2<span>(<span>x+50</span>)</span></span>−6</span>=<span>0.4<span>(<span><span>3x</span>+20</span>)</span></span></span>Step 1: Simplify both sides of the equation.<span><span><span>0.2x</span>+4</span>=<span><span>1.2x</span>+8</span></span>Step 2: Subtract 1.2x from both sides.<span><span><span><span>0.2x</span>+4</span>−<span>1.2x</span></span>=<span><span><span>1.2x</span>+8</span>−<span>1.2x</span></span></span><span><span><span>−x</span>+4</span>=8</span>Step 3: Subtract 4 from both sides.<span><span><span><span>−x</span>+4</span>−4</span>=<span>8−4                </span></span><span><span>−x</span>=<span>4  now you divide by negative x (technically it is -1x=4 so your answer is x=-4</span></span>
3 0
3 years ago
Charlotte has 85 stickers. Her brother has x times more stickers than her. Write
sergiy2304 [10]

Step-by-step explanation:

Her brother has 85 * x stickers.

8 0
2 years ago
- What is the equation of a cirde with a center
wlad13 [49]

Answer:

<h2>C.</h2>

Step-by-step explanation:

The equationof a circle:

(x-h)^2+(y-k)^2=r^2

<em>(h, k)</em><em> - center</em>

<em>r</em><em> - radius</em>

<em />

We have <em>center = (4, -1) → h = 4, k = -1</em>, and <em>r = 9</em>.

Substitute:

(x-4)^2+(y-(-1))^2=9^2\\\\\huge\boxed{(x-4)^2+(y+1)^2=81}

6 0
2 years ago
Read 2 more answers
Other questions:
  • Solve for x in simplest form. <br> 1 = (2/3) (10x-15)
    12·1 answer
  • What is the number has 8 zeros in it
    8·1 answer
  • The cone shown has a diameter of 18 meters and a slant height of 15 meters. Which choice is closest to the lateral surface area?
    7·2 answers
  • What is the factored form of the polynomial 27x2y – 43xy2?
    8·2 answers
  • 5 x (2+8) + (12- 6 : 3 ) x 3
    9·1 answer
  • Andrew got a 95% on the test. If there were 80 questions on the test, and every question worth the same, how many questions did
    10·2 answers
  • What type of conic is given by the equation 4x^2+9y^2=36
    6·1 answer
  • A wooden plank is cut into three pieces. The ratio of the length of the pieces of wood is 6:10:12. If the length of the original
    9·1 answer
  • Write as a mixed number 5.06
    13·2 answers
  • Imagina that the cook is using a potato-chopping machine instead of a knife, allowing him to chop a maximum of 120 potatoes inst
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!