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muminat
3 years ago
15

What is the equation of the line that passes through (4, 3) and (-4, -1)?

Mathematics
1 answer:
snow_lady [41]3 years ago
3 0
It should be y=1/2x+1
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On average, Tony the turtle completes a 15-foot course in 1 minute, and Antonio the turtle completes an 18-foot course in 1 minu
marishachu [46]

Answer:

15 feet.

Step-by-step explanation:

Tony's speed = 15 ft/min.

Antonio's = 18 feet /min.

So in 5 minutes Tony travels 5*15 = 75 feet and Antonio travels 5*18 = 90 feet.

So the answer is 90-75 = 15 feet.

8 0
3 years ago
A fossilized leaf contains 18% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as
Sati [7]

Answer: The age of the fossilized leaf is 13829 years.

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant = 100

a - x = amount left after decay process = \frac{18}{100}\times 100=18  

a) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{5600years}=0.00012years^{-1}

b) for finding the age

t=\frac{2.303}{0.00012}\log\frac{100}{18}  

t=13829years

The age of the fossilized leaf is 13829 years.

7 0
3 years ago
Use the diagram to answer the questions below.
PtichkaEL [24]
The answer is E hope this helps
5 0
3 years ago
An elevator is on the twentieth floor. It goes down 11 floors and then up five floors. What floor is the elevator on now?
love history [14]
The answer is -4

because when you minus 11 and 20 that will get you -9 and then you add 5 that get you the answer
8 0
3 years ago
Is (10,4),(-2,4),(-1,1),(5,6) a function?
lys-0071 [83]
No it is not a function.
7 0
1 year ago
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