Scientists studying biodiversity of amphibians in a rain forest have discovered that the number of species is decreasing by 2% per year. There are currently 74 species of amphibians in the rain forest. Which logarithmic function models the time, f(n) , in years, it will take the number of species to decrease to a value of n?
Answers
Answer:
Select the correct answer.
Scientists studying biodiversity of amphibians in a rain forest have discovered that the number of species is decreasing by 2% per year. There are currently 74 species of amphibians in the rain forest. Which logarithmic function models the time, , in years, it will take the number of species to decrease to a value of n?
The answer is D.
Step-by-step explanation:
The logarithm function that models the time, f(n) , in years is [tex]\rm f(n) = log_{0.98} (\dfrac{n}{74})[/tex], the correct option is D.
What is an Exponential Function?An exponential function can be represented in the form f(x) = abˣ.
The number of species is decreasing by 0.02
Current number of species = 74
The time f(n) years is given by
f(n) = 74 (0.98)ⁿ
Converting exponent to logarithm form
x = aⁿ
y = logₓ a
f(n) = 74 (0.98)ⁿ
[tex]\rm f(n) = log_{0.98} (\dfrac{n}{74})[/tex]
To know more about Exponential Function
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HELP ASAP OTS DUE IN 5 MINUTES!!!!
Find the slope of the line.
0-5
0 -1
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None of the above
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Answer:
0 -1
Step-by-step explanation:
because the line is going down which is negative
Solve the equation for y.
4x+6y=12
Answers
Answer:
your answer when you solve for y will be: y=-2+ 2x/3
The equation can represent as y = 2 - 2x/3 after solving for y if the equation is 6y = 12 - 4x.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that:
The equation is:
4x+6y=12
To solve for make the subject as y:
6y = 12 - 4x
Divide by 6 on both sides
y = (1/6)[12 - 4x]
After simplification:
y = 2 - 2x/3
Thus, the equation can represent as y = 2 - 2x/3 after solving for y if the equation is 6y = 12 - 4x.
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Tell whether 15/7 and 16/8 form a proportion yes or no
Answers
Answer:
yesStep-by-step explanation:
it can be written either as 15/7 or 15:7 to be a proportion, same goes for 16/8 and 16:8
Answer:No.
Step-by-step explanation:15 x 8 is 120 and 16 x 7 is 112 which isn’t equivalent
which pair of triangles that are congruent that are using the hypotenuse leg congruence criteria?
Answers
Answer:
2 and 3
Step-by-step explanation:
Does anyone think they can help?
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Paris and seven of her classmates went out to lunch. They decided to divide the bill evenly. Each person paid $6.36. What was the total bill?
Show or explain your work.
Answers
Answer: $50.88, assuming they don’t pay tax, including Paris
Step-by-step explanation: 6.36 x 8 = 50.8k
Answer: $.50.88
Because each of her clasmates are gonna pay $6.36 each.
Determine which of the lines, if any, are parallel. Explain.
8. Line a passes through -1, 4 and 1, 5. 9. Line a: 6 y = -x + 12
Line b passes through -2, 7 and 0,4 . Line b: x = 6y + 5
Line c passes through 0, 4 and 2, 5.
Line c: -6 y + x = 5
Answers
Answer:
8) a and c
9) b and c
Step-by-step explanation:
Explanation and work are in the picture :)
What is the most accurate anwser for 2+2= ???
I got it on me tes a scwool todays
somebwod hewlp my
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Answer:
Fish (4) is the correct answer.
Step-by-step explanation:
Travis Jamison earns $42,500 annually as a new staff attorney.
He is single. The state tax rate in his state is 3.5% of taxable
income. What amount is withheld from his monthly pay for
state income tax?
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Answer:
The answer would be 8
Answer:
The amount withheld is 8
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Answer:
a and c
Step-by-step explanation:
ASAP plzzz thanks
What is the next number in the sequence below?
3,6,9,12,?
O A. 21
O B. 14
O C. 18
O D. 15
Answers
Answer:
its 15 ur counting by 3's
Step-by-step explanation:
Answer:
it is 15
Step-by-step explanation:
just go by 3's 3,6,9,12,15,18,21,24,27,30
I'm not sure what this means, please help me I'll give you 10 points ;)
(also i'm new to this brainly thing and so far I'm liking it)
Answers
Answer:
So all the possible solutions are:
[tex]\bold{523,~400,~379~and,~378.6}[/tex]Solution Steps:
First you need to solve the real inequality to understand how to find the rest of the possible equations.
Add 78 to both sides:
[tex]78+78=[/tex] Cancels Out[tex]300+78=378[/tex]So now we know the real answer, but it ask for all possible answers.
(Means anything larger than 300 when you plug it into x - 78 > 300.)
Numbers that are greater than 378:
1.) [tex]377-78=299 > 300[/tex] (False)
2.) [tex]523-78=445>300[/tex] (True)
3.) [tex]0-78=-78>300[/tex] (False)
4.) [tex]-62-78=-140>300[/tex] (False)
5.) [tex]400-78=322>300[/tex] (True)
6.) [tex]379-78=301>300[/tex] (True)
7.) [tex]222-78=144>300[/tex] (False)
8.) [tex]378.6-78=300.6>300[/tex] (True)
______________________________
[tex]\bold{Hope~this~helps!}\\\bold{If~you~need~help~with~anything~else,~feel~free~to~ask!}\\\\\bold{~~~~~-TotallyNotTrillex}[/tex]
Need answer for this please.
Answers
Answer:
y= - 5x+40
Step-by-step explanation:
I graphed this out. Remember that in parallel lines, the slopes are always the same.
One digit is chosen from the digits 0 through 9. The sample space S is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. List the elements in the following events. (See Example 2 in this section. Enter your answers as comma-separated lists.)
(b)
The number is divisible by 3.
{ }
Answers
Answer:
The numbers divisible by 3 are
{0,3,6,9}
Step-by-step explanation:
Here, out of the sample space, we want to list the numbers which are divisible by 3
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P (0,?)
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Answers
Answer:
P(0, 4 ), Q(2, 0 )
Step-by-step explanation:
To find P, with an x- coordinate of 0
Substitute x = 0 into the equation and solve for y
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x = 2
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Answer:
so sorry
Step-by-step explanation:
wish I could help but I don't know how to do it
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Answers
Answer:
20 hours
Step-by-step explanation:
400/20 is 20 which means to bake 400 cakes, he needs 20 hrs
Which chemical equation is balanced?
Question 2 options:
CH4 + O2 → H2O + CO2
CH4 + O2 → 2H2O + CO2
6CH4 + O2 → 2H2O + 2CO2
CH4 + 2O2 →2H2O + CO2
help
Answers
Step-by-step explanation:
CH4 + 2O2 →2H2O + CO2
the answer
Answer:
The balanced chemical equation of the given reaction are;
b.CH4 + 202-> 2H20 + CO2
Step-by-step explanation:
C=C
H4=2H2
2O2=O2+2O(2O2)
I Think it helps you.
PLEASE HELP
Answer two questions about Equations A and b
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1) How can we get Equation BBB from Equation AAA?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Add/subtract the same quantity to/from both sides
(Choice B)
B
Add/subtract a quantity to/from only one side
(Choice C)
C
Rewrite one side (or both) by combining like terms
(Choice D)
D
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(Choice A)
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(Choice B)
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The first one is Add/Subtract the same quantity to/from both sides and the second one is Yes
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Answer:
1)(-2,8)
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Step-by-step explanation:
For number one since the image is a reflection on the y-axis, the x-coordinate becomes the opposite so the point (2,8) becomes (-2,8)
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Answers
Answer:
27.74 is the difference
Step-by-step explanation:
23.3° C - (-4.44° C)
23.3 + 4.44
27.74
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18 + 4(28)
Answers
Answer:
Well on of the properties states that unless there are parenthesis, you multiply and divide first then you add and subtract. So, first we multiply 28*4 and that leaves use with 112, now if there is no more multiplication, division, or parentheses, and there's not. We can continue all we do is add 18+112 and we get our answer of 130.
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Answers
Step-by-step explanation:
yes
Please help!!!!!!!!
Answers
Answer:
1 [tex]\frac{14}{15}[/tex]
Step-by-step explanation:
Given
[tex]\frac{4}{5}[/tex] × 2 [tex]\frac{5}{12}[/tex] ← change the mixed number to an improper fraction
= [tex]\frac{4}{5}[/tex] × [tex]\frac{29}{12}[/tex] ( cancel 4 and 12 by 4 )
= [tex]\frac{1}{5}[/tex] × [tex]\frac{29}{3}[/tex]
= [tex]\frac{29}{15}[/tex]
= 1 [tex]\frac{14}{15}[/tex]
4/5x22/12 turn into improper
Cross multiply turns into
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I need somebody to double check this for me
1x-23+84+1x+23= 180
I got x= 48
Thank you! :)))
Answers
48-23+84+48+23=180
Find the volume of the solid. *
Answers
Answer:
144 in cubed
Step-by-step explanation:
you do 8 * 9 * 2 to find area and then by doing that you get 144
Explanation: LxWxH , 9x2x8 , 144
Which equation represents the line that passes through points B and C on the graph?
Answers
Answer:
y= -2x-6
Step-by-step explanation:
Answer:
y = -2x - 6
Step-by-step explanation:
Took the quiz on Edge. Have an amazing day! ^w^
HELP DUE IN 5 MINUTES!!!!
Find the slope of a roof of a home that rises 6 feet for every horizontal change of 24 feet.
O -4
0 1
0 4
O None of the above
Answers
Marisa made 60 mums for homecoming. These mums took 48 hours to make. Each mum takes the same amount of time to make. How many hours will it take Marisa to make 20 mums?
Answers
Answer: 25
Step-by-step explanation: 60/48=1.25, 1.25 x 20=25