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Dimas [21]
2 years ago
9

Rabbits can exhibit a number of colors in their coats: black, white, tan, brown, red, and grey. A disease randomly kills off mos

t of the population and leaves only black and grey rabbits. Future generations are only black or grey. What is the term used to describe this phenomenon
Mathematics
1 answer:
Marysya12 [62]2 years ago
4 0

Answer:

Genetic drift

Step-by-step explanation:

I took da test

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Gary has a field on his property that he wants to sod. His field is 20 yards long and 40 yards wide.
Brilliant_brown [7]

Answer:

a) 800 square yards

b) 7200 square feet

Step-by-step explanation:

a) 40*20= 800 square yards

b) Each yard is 3 feet.

(40*3)*(20*3)=120*60=7200 square feet

5 0
2 years ago
Please help me and the answer is not the first one
Anna11 [10]
I think it’s the second one!!!
5 0
3 years ago
Read 2 more answers
10. A perfect circle measuring 38 feet across was discovered on Brickell Avenue in Miami in 1998. Known as the Miami Circle at B
vivado [14]

Using an exponential function, it is found that the Tequesta settlement is 1845 years old.

<h3>What is an exponential function?</h3>

The exponential equation for a decaying amount of a substance is given by:

A(t) = A(0)e^{-rt}

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

Researching on the internet, the half-life of carbon 14 is of 5,730 years, hence A(5730) = 0.5A(0), which we use to find r.

A(t) = A(0)e^{-rt}

0.5A(0) = A(0)e^{-5730r}

e^{-5730r} = 0.5

\ln{e^{-5730r}} = \ln{0.5}

5730r = -\ln{0.5}

r = -\frac{\ln{0.5}}{5730}

r = 0.00012096809

Hence, the equation is:

A(t) = A(0)e^{-0.00012096809t}

The wood chips were found to contain 80% of the atmospheric carbon-14, hence we have to find t for which A(t) = 0.8A(0).

A(t) = A(0)e^{-0.00012096809t}

0.8A(0) = A(0)e^{-0.00012096809t}

e^{-0.00012096809t} = 0.8

\ln{e^{-0.00012096809t}} = \ln{0.8}

-0.00012096809t = \ln{0.8}

t = -\frac{\ln{0.8}}{0.00012096809}

t = 1845

The Tequesta settlement is 1845 years old.

You can learn more about exponential functions at brainly.com/question/25537936

8 0
2 years ago
based on the graphic, what can be inferred about the relationship between braking distance and tread depth of tires ?
Reil [10]

Answer: A

Step-by-step explanation:

5 0
2 years ago
Help me please! (Look at image.)
Svetradugi [14.3K]
4^2 = 16
so x must be greater than 16
answer
E. 17
F. 19
8 0
2 years ago
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