A very rapid climate change is most likely to lead to mass extinction in which vast numbers of species of all kinds die off.
What is ECOLOGICAL SUCCESSION?An ecosystem can change its structure and composition over a particular period. This term is called ECOLOGICAL SUCCESSION.
Succession refers to the gradual change that occurs in a community over time. Succession is of two types; primary and secondary succession.
Climate change and succession are causes of change in the ocean ecosystem. Hence, the succession represents the gradual change that occurs in the structural composition of the ocean ecosystem over time.
The risk of future extinction through rapid global warming is primarily expected to occur by the interaction between the climates to which organisms are adapted in their current range and the future distribution of those climates.
Thus the correct option is D.
A very rapid climate change is most likely to lead to mass extinction in which vast numbers of species of all kinds die off.
Learn more about climate change here;
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the amount people pay for cable service varies quite a bit but the mean monthly fee is $142 and the standard deviation is $29. the distribution is not normal many people pay about $76 for basic cable and about $160 for premium service but some pay much more. a sample survey is designed to ask a simple random sample of 1,500 cable service customers how much they pay. let x hat be the mean amount paid.
Part a: what are the mean an standard deviation of the sample distribution of x hat show your work and justify your reasoning.
Part b: what is the shape of the sampling distribution of x hat justify your answer.
Part C: what is the probability that the average cable service paid by the sample of cable service customers will exceed $143? show your work.
Answer:
a) By the Central Limit Theorem, the mean is $142 and the standard deviation is $0.7488.
b) By the Central Limit Theorem, approximately normal.
c) 0.0901 = 9.01% probability that the average cable service paid by the sample of cable service customers will exceed $143
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal probability distribution
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
The mean monthly fee is $142 and the standard deviation is $29.
This means that [tex]\mu = 142, \sigma = 29[/tex]
Part a: what are the mean an standard deviation of the sample distribution of x hat show your work and justify your reasoning.
Sample of 1500(larger than 30).
By the Central Limit Theorem
The mean is $142
The standard deviation is [tex]s = \frac{29}{\sqrt{1500}} = 0.7488[/tex]
Part b: what is the shape of the sampling distribution of x hat justify your answer.
By the Central Limit Theorem, approximately normal.
Part C: what is the probability that the average cable service paid by the sample of cable service customers will exceed $143?
This is 1 subtracted by the pvalue of Z when X = 143. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{143 - 142}{0.7488}[/tex]
[tex]Z = 1.34[/tex]
[tex]Z = 1.34[/tex] has a pvalue of 0.9099
1 - 0.9099 = 0.0901
0.0901 = 9.01% probability that the average cable service paid by the sample of cable service customers will exceed $143
Turn this into a formula and step by step on how to solve it.
Answer:
1080
Step-by-step explanation:
if you are trying to find the volume the formula is
width x length x height
if you plug in 6x15x12 you get 1080 so the volume of the figure is 1080
Please answer these 2 word problems for BRAINLIEST AND IF CORRECT I WILL GIVE EXTRA POINTS
Answer:
150
Step-by-step explanation:
what is the volume of a sphere with a radius of 16 cm use 3.14
Answer:
volume is 17157.28 :)
Step-by-step explanation:
Please help me someone
Answer:
A
Step-by-step explanation:
PV(1+i)^n
2000(1+.015)^x
2000(1.015)^x
A
what is the best equation?
Dan and Becca have cups that are the same size. Dans cup is 1/4 full of water. Beccas cup is 1/6 full of water. Compare the amount of water in each cup using <,>, or =.
I-Ready™
Answer:
>
Step-by-step explanation:
1/4 is greater than 1/6.
Sixty is a composite number. Use division by primes to find the prime of 60.
Answer:
Here your ansStep-by-step explanation:
Prime factorization of 60 2×2×3×5=60The actual prime factors of 60 are 2,3,5Hope it's helpfullyAnswer:
60 is composite
2,3,5 are prime
Step-by-step explanation:
Eddie opens a bank account with $1,000. Every year he doubles the amount of money in the account.
Answer:
next year he'll add $2,000. to the bank account. the total amount would be $3,000.00
Step-by-step explanation:
$1,000.00 x 2 = $2,000.00 + $1,000.00 = $3,000.00
^w^
Ruic drinks 1/4 of a 16oz glass of water in 1/3 of an hour. How much water would he drink in one hour if he continued at the same rate?
Answer:
He would drink 12 oz of water or 3/4 of a 16 oz glass of water
Step-by-step explanation:
1/4 of 16 oz is 4fl oz
you drink 4 oz every 1/3 of an hour
4 x 3= 12
I need help quick this is hard
12inches including the history bonus make sure to include the politics
Can y’all help me on question 20?!
Answer:
372 miles
Step-by-step explanation:
brainliest please
What is 1/3 as a decimal? Give your answer rounded to 2 decimal places.
Answer:
Answer vary:
1/3 into a decimal = 0.3
Step-by-step explanation:
honestly in my opinion that my answer.
all you do to find it out is divide 1 to 3, so it’s pretty simple. and the dash between 1 and 3 in fractions means divide so yea that’s all you need to do.
what is cubed root of 27
Answer:
3 aaaaaaaaaaaaaaaaaa
Step-by-step explanation:
Andre is planting saplings (baby trees). It takes him 30 minutes to plant 3 saplings. If each sapling takes the same amount of time to plant, how long will it take Andre to plant 14 saplings? If you get stuck, consider using the table.
Answer:
140 minutes
Step-by-step explanation:
If it takes him 30 mins to plant three, then 30 divided into three equal groups is 10. Then we multiply 14 and 10 together since it takes Andre ten minutes to plant each sapling. This means that the 14 saplings takes ten minutes EACH to plant.
Answer: 140
Step-by-step explanation:
i got it right
Complete the table of values.
X
-1
NIW
0
d
e
4
f
d =
e =
f=
Answer:
Step-by-step explanation:
d=4
e=2
f=6
Evaluate 2/3x -16 when x= 18
A.-6
B.-4
C.2
D.4
Answer: the answer is -4
Step-by-step explanation:
Find five ordered-pair solutions to the linear equation 2x+y=6
Answer: (-2,10)(0,6)(3,0)(8,-10)(10,-14)
Step-by-step explanation:
Answer:
(0,6)
(1,8)
(2,10)
(3,12)
(4,14)
(5,16)
Step-by-step explanation:
first you have to put it in y=mx+b form y=2x+6
next put in your calculator
One year ago, Lindsey deposited $250 into a savings
account. Her balance
deposited $250 into
now $253, Two years ago, Jenn
savings account Her balance is
now $257.50. Which account has the greater simple
interest rate? Explain,
Answer:
Jenns account has the greater simple interest rate.
Step-by-step explanation:
The formula for simple interest is:
A = P * ( 1 + r * t )
Where A is the final amount after investment, P is the initial amount, r is the rate of interest and t is the time periods.
For Lindsey:
253 = 250 * ( 1 + r * t )
Solve for r
r = ( 253/250 ) - 1 = 0.012
Lindsey simple interest was 1.2% annually
For Jenn:
257.50 = 250 * ( 1 + r * 2 )
r = ( 257.50/250 ) - 1 )/2 = 0.015
Jenn simple interest was 1.5% annually
Therefore Jenns account has the highest simple interest rate.
Answer:
Lindsay’s interest is $3 for one year. Using the formula for interest, I = prt, Lindsey’s money is earning at a rate of 1.2%. Jenn has earned $3.75 for one year. Her money is earning at a rate of 1.5%, which is a higher interest rate.
Step-by-step explanation:
Sample response :)
Help me with my math**50 pts** i mark brainliest**
Answer:
3) Reflexive Property
4) SAS
Step-by-step explanation:
ST ≅ TS1. The Reflexive Property states that: a quantity is congruent (equal) to itself.
Example: a = a In this case, it could be seen as ST ≅ ST because they have/are the same side(s).RST ≅ UTS1. SAS theorem states that: two triangles are equal if two sides and the angle between those two sides are equal.
Example: RST ≅ UTS (both have S and T) Can be seen as RST ≅ UST as well to make their similarity more evident.2. Because it is given that RS ≅ UT and RT ≅ US, and it includes the same 2 lines being equal as given/said, RST ≅ UTS because of SAS (theorem).
kate buys 10 ticket to show. She also pays a 5$ parking fee. she spent $35 to see the show. What equation is this
Answer:
35 = 5 + 10x
Step-by-step explanation:
x = the ticket price.
Each ticket was $3
hope this helps :)
(35 - 5)/10 = 3 because She paid 35 all together + 5$ was for parking, we can subtract that. Then 30/10 is equal to 3 so she spent 3 dollars for each ticket
Find the distance between the two points rounding to the nearest tenth (8,−9) and (2,−7)
Answer:
negative 7 is first then comes 2. negative 9 is first then comes 8.
Step-by-step explanation:
Answer:
6.3
Step-by-step explanation:
Please need help with one
10. What is the slope-intercept form of y + 6 = 2(x + 2)?
Answer:
y=2x-2
Step-by-step explanation:
A Ferris vil can accommodate 55 people in 15 minute how many people could ride the Ferris ville in 2 hours what is the rate per hour
15 minutes is one quarter of an hour, so the number of people accommodated in an hour would be 4 x 55 = 220 people per hour
The cost of a business to make a greeting cards can be divided into one-time cost (e.g.,a printing machine) and repeated cost (e.g.,ink and paper )suppose the total cost to make 500 cards is 1,100 and the total cost to make 650 cards is 1,400 what is the total cost to make 1,000 cards round your answer to the nearest dollar
ASAP !
Answer:
$ 2,200
Step-by-step explanation:
If it cost $1,100 to make 500 then double that and you get $2,200
Answer:
$2100
Step-by-step explanation:
After 500 cards, there is a discount.
(1100/500 = 2.2) So, $2.20 per card for the first 500 cards.
For every 150 cards after the initial 500, it costs $300, or $2.00 per card. (300/150 = 2)
If you want 1,000 cards, you are ordering 500 of them at $2.20 per card and the second 500 cards at $2.00 per card.
(500x2.2) + (500x2)= 2100
You must have a common denominator when _______ fractions. Choose all that apply.
A) Subtracting
B) Multiplying
C) Adding
D) Dividing
Answer:
Adding and subtracting!!!
Step-by-step explanation:
i took math lol
PS plzz tell me if u got it right!!!
Answer:
Dividing, subtracting, adding
Step-by-step explanation:
the reason you can only multiply without a common denominator is that the multiplication process does it for you, normally, the quickest way to find an easy common denominator is to multiply the two, then simplify at the end.
Hopefully this helped!
Please this is due in 1 hr and 11 minutes...
Please don’t answer this with one answer, blank or ridiculous answer this is serious....
Answer:
Angle R is congruent to angle Y; line ZX is congruent to line SQ
Step-by-step explanation:
Order matters when listing sides and angles, as in the question.
R is second listed angle, and so is Y.
Line ZX is first and third listed, so congruent side is line SQ
Solve the following inequality: -7d + 8 > 29
Answer:
d<-3
Step-by-step explanation:
-7d + 8 > 29
subtract 8 from each side
-7d>21
multiply both side by -1 and reverse the inequality sign
7d<-21
divide both sides by 7
d<-3
hope this helps :)
2. A number decreased by eight is five
A CAB
BO-85
C-805
D-5
Complete Question:
A number decreased by eight is five.
Group of answer choices.
A. C + 8 = 5
C. -8c = 5
B. C - 8 = 5
D. S = 5
Answer:
B. C - 8 = 5
Step-by-step explanation:
Let the unknown number be C.
Translating the word problem into an algebraic equation, we have:
C - 8 = 5
Simplifying further, we find that;
C = 5 + 8
C = 13
Therefore, the unknown number is 13.