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tekilochka [14]
3 years ago
7

A hiker in Africa discovers a skull that contains 32% of its original amount of C-14. Find the age of the skull to the nearest y

ear.
Mathematics
1 answer:
kap26 [50]3 years ago
6 1

Answer:you know that N=0.41No so if you sub that in the No's cancel and you get 0.41=e^-kt.

solving for t you get t=(ln0.41)/(-k)=8915.98=8916 (to the nearest year)

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I don’t understand this can someone please give me and example on how to do it please?
olga55 [171]
For the first one,

you multiply 5x and -5 to get -25.

Then you move the constant to the right and change the sign to get 3x= -21 +25.

Calculate the sum of -21+25 to get 4.

Divide both sides of the equation by 3 to get x=4/3.

So then your final answer is x=4
——
3


For the second one,

Distribute 7 through the parentheses to get 14x + 14+8=120

The you add 14+8 to get 22. Your equation should be 14x+22=120

Move the constant to the right side and change its sign to get 14x=120-22

Subtract 120-22 to get 98. Now your equation should be 14x=98

Divide both sides of the equation by 14 to get x=7.

Your finial answer for the second one should be x=7.
—————————————————————-
I hope this made sense.
5 0
3 years ago
Find the polynomial f(x) of degree 5 that has the following zeros -3(mulitiplicity 2),5,8,-7
noname [10]

Answer:

Step-by-step explanation:

(x + 3)²(x - 5)(x - 8)(x + 7)

4 0
2 years ago
Given the Arithmetic sequence A1,A2,A3,A4A1,A2,A3,A4
Bad White [126]
The given sequence is
a₁ = 29
a₂ = 39
a₃ = 49
a₄ = 59

This sequence is an arithmetic sequence. Th first term is a₁ = 29, and the common difference is d= 10.

The n-th term is
a_{n}=a_{1}+(n-1)d
The 33-rd termis
a₃₃ = 29 + (33 - 1)*10
     = 29 + 320
     = 349

Answer: a₃₃ = 349
7 0
3 years ago
Use the following model.
kaheart [24]
Answer:
B.4
Step-by-step explanation:
the base is the bottom and on the bottom are what looks to be 4 bases

Hope this helps have a nice day
8 0
3 years ago
Read 2 more answers
You are having a conference call with the CEO of a paper company. You have interpreted the number of trees cut down versus profi
loris [4]
You can only cut down a integer number of trees. So you might look at a few integer values for x. As x get large the –x4 term dominates the expression for big losses. x = 0 is easy P(x) = -6. Without cutting any trees you have lost money Put x = 1 and you get for the terms in order  -1 + 1 + 7 -1 -6 = 0. So P(x) crosses zero just before you cut the first tree. So you make a profit on only 1 tree. However when x=10 you are back into no profit. So compute a few values for x = 1,2,3,4,5,6,7,8,9.
8 0
3 years ago
Read 2 more answers
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