Ask question

Ask question

All categories

3 years ago

13

A lake has a population of a rare endangered fish. The lake currently has a population of 14 fish. The number of fish is increas

ing at a rate of 8% per year. How long will it take for the population to be 56 fish?

1 answer:

alex41 [277]3 years ago

4 0

14^ 0.08t = 56.

From here, you can rewrite it as log base 14 argument 56 = 0.08t.

When you plug it in t is about 19

Answer: ≈19 years

You might be interested in

ayyyy everybody drop what yo type of “aesthetic” is :) i wanna see if any body got the same type of “aesthetic” as me :)

FromTheMoon [43]

Answer:

my aesthetic is kinda like a hello kitty aesthetic :)

Step-by-step explanation:

ye

3 0

3 years ago

Find the area of the figure below

Ber [7]

Answer:

you can write 28.5

Step-by-step explanation:

calculate the squared you can find it

4 0

3 years ago

A study was conducted to determine whether magnets were effective in treating pain. The values represent measurements of pain us

gregori [183]

Answer and Step-by-step explanation: The null and alternative hypothesis for this test are:

$H_{0}: s_{1}^{2} = s_{2}^{2}$

$H_{a}: s_{1}^{2} > s_{2}^{2}$

To test it, use F-test statistics and compare variances of each treatment.

Calculate F-value:

$F=\frac{s^{2}_{1}}{s^{2}_{2}}$

$F=\frac{1.26^{2}}{0.93^{2}}$

$F=\frac{1.5876}{0.8649}$

F = 1.8356

The <u>critical value of F</u> is given by a F-distribution table with:

degree of freedom (row): 20 - 1 = 19

degree of freedom (column): 20 - 1 = 19

And a significance level: α = 0.05

$F_{critical}$ = 2.2341

Comparing both values of F:

1.856 < 2.2341

i.e. F-value calculated is less than F-value of the table.

Therefore, failed to reject $H_{0}$ , meaning there is <u>no sufficient data to support the claim</u> that sham treatment have pain reductions which vary more than for those using magnets treatment.

4 0

3 years ago

6n + 8 and 2(3n + 4)<br> Are the two expressions equivalent

lara [203]

Yes, they are equivalent

3 0

3 years ago

Read 2 more answers

What is the ratio of 5 rectangles and 13 circles

Lera25 [3.4K]

What is the ratio of 5 rectangles and 13 circles?

A ratio can be written 3 ways, and when working with ratios we have to be very careful and put the answer the way the questions is asking.

Way # 1
a to b

Way # 2
a: b

Way # 3
a/b

5 rectangles to 13 circles
5 rectangles:13 circles
5 rectangles/13 circles. <span />

6 0

3 years ago