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AnnyKZ [126]
3 years ago
12

What property is (3×4) 5 =(5×4) 3

Mathematics
2 answers:
ozzi3 years ago
8 0
Associative property
maks197457 [2]3 years ago
7 0
Commutative property
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Ginny is studying a population of frogs. She determines that the population is decreasing at an average rate of 3% per year. Whe
Rama09 [41]

You can see how this works by thinking through what's going on.

 

In the first year the population declines by 3%.  So the population at the end of the first year is the starting population (1200) minus the decline: 1200 minus 3% of 1200.  3% of 1200 is the same as .03 * 1200.  So the population at the end of the first year is 1200 - .03 * 1200.  That can be written as 1200 * (1 - .03), or 1200 * 0.97

 

What about the second year?  The population starts at 1200 * 0.97.  It declines by 3% again.  But 3% of what???  The decline is based on the population at the beginning of the year, NOT based no the original population.  So the decline in the second year is 0.03 * (1200 * 0.97).  And just as in the first year, the population at the end of the second year is the population at the beginning of the second year minus the decline in the second year.  So that's 1200 * 0.97 - 0.03 * (1200 * 0.97), which is equal to 1200 * 0.97 (1 - 0.03) = 1200 * 0.97 * 0.97 = 1200 * 0.972.

 

So there's a pattern.  If you worked out the third year, you'd see that the population ends up as 1200 * 0.973, and it would keep going like that.

 

So the population after x years is 1200 * 0.97x

5 0
3 years ago
Hjhjhjhjhhhhhhhhhhhhhhhjjhkjhjjhhjjkjk
kiruha [24]

Answer:


Step-by-step explanation:


7 0
3 years ago
In circle M, diameters JL and HK each measure 16
creativ13 [48]

Answer:

3.5 cm

Step-by-step explanation:

In the picture attached, circle M is shown.

From the picture, minor arc JH measures 25°.

The length of the circle is π*Diameter = π*16 = 50.26 cm. This length is proportional to 360°. To find the length of minor arc JH, we have to use the next proportion:

50.26 cm / x cm = 360° / 25°

x = 50.26*25/360

x = 3.5 cm

5 0
3 years ago
2 +4 +5+400+888+953<br> what is it
Zolol [24]
The answer is 2,254!
7 0
3 years ago
Read 2 more answers
What is the answer to 336 is 48% of what number?
Doss [256]
Is means =
'of' means multiply
percent means parts out of 100 so 48%=48/100=4.8/10=0.48/1=0.48
 so it is
336=0.48 times something
divide both sides by 0.48
700=something
the numbe ris 700
7 0
3 years ago
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