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Semenov [28]
3 years ago
11

Solve using the quadratic formula. Write answers as an exact value and as a decimal rounded to the nearest hundredth.

Mathematics
1 answer:
vichka [17]3 years ago
4 0

Answer:

\frac{-2±\sqrt{3} }{2}

dec form: -0.13

Step-by-step explanation:

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snow_tiger [21]

This is a perfect example of exponential decay. In this case the growth factor should be represented by a fraction, and it is! This forest, starting out with apparently ( 800? ) pine trees, has a disease spreading, which kills 1 / 4th of each of the pine trees yearly. Therefore, the pine trees remaining should be 3 / 4.

Respectively 3 / 4 should be the growth factor, starting with 800 pine trees - the start value. This can be represented as such,

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Thus, the function P( t ) = 800( \frac{3}{4} )^t can model this problem. The forest after t years should have P( t ) number of pine trees remaining.

3 0
3 years ago
the sum of the squares of two consecutive negative even integers is 52. Find the integers. show all work!!!
Alex
The two numbers are -4 and -6.

- two negatives make a positive. in this case -4×-4 equals 16 and -6×-6 equals 36. these are the squares

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please vote my answer branliest. Thanks!
3 0
3 years ago
The sum of two numbers is 61 . The larger number is5 more than the smaller number. What are the numbers?
vodka [1.7K]

Answer: 33 and 28


Step-by-step explanation:

so, all we know is ? + ? = 61

if the larger number is 5 more than the smaller number, we can assume that..

33 + 28 = 61


8 0
3 years ago
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A jacket cost £70 but is reduced by 12% in a sale. What is its new price
klemol [59]
100% = 70
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Hope this helped! Got any questions just ask!


8 0
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Alenkinab [10]
They're called powers of ten. they're easy to represent as exponents. 
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4 years ago
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