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Lynna [10]
3 years ago
8

Fraction that simplifies to 7/8. Numerator must be divisible by 5

Mathematics
2 answers:
dimulka [17.4K]3 years ago
4 0
35/40
........
I think that's it
NeTakaya3 years ago
3 0
35/40

That is one of them.
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Solve below for 50 points
Goryan [66]

Answer:

You can use the pythagorean theorem to determine the unknown value of the hypotenuse. 2. by taking advantage of their side ratios

Step-by-step explanation:

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PLz help me
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Answer:

The laboure was charging 22% per hour

Step-by-step explanation:

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Foxy used a calculator to evaluate (18+)x(49-39)-63•9 by entering C 18 +2*15-7
strojnjashka [21]
Ok what else before I can help
4 0
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In 2011, it was estimated that the number of U.S households which had dogs as pets was 4.33 x 10^7 and the average number of dog
poizon [28]

The right answer is

D. 6.93 X 10^7

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3 years ago
Ancient paintings were found on cave walls in South America. The Carbon-14 in the paintings was measured and was found to be 19%
balu736 [363]

Answer: C. 13,839 (the answer is not among the given options, however the result is near this value)

Step-by-step explanation:

The exponential decay model for Carbon- 14 is given by the followig formula:

A=A_{o}e^{-0.0001211.t}  (1)

Where:

A is the final amount of Carbon- 14  

A_{o}= is the initial amount of Carbon- 14

t is the time elapsed (the value we want to find)

On the other hand, we are told the current amount of Carbon-14 A  is 19\%=0.19, assuming the initial amount of Carbon-14 A_{o}= is  100\%:

A=0.19A_{o} (2)

This means: \frac{A}{A_{o}}=0.19 (2)

Now,finding t from (1):

\frac{A}{A_{o}}=e^{-0.0001211.t}  (3)

Applying natural logarithm on both sides:

ln(\frac{A}{A_{o}})=ln(e^{-0.0001211.t})  (4)

ln(0.19)=-0.0001211.t  (5)

t=\frac{ln(0.19)}{-0.0001211}  (6)

Finally:

t=13713.717years  This is the age of the paintings and the option that is nearest to this value is C. 13839 years

6 0
2 years ago
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