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Zarrin [17]
1 year ago
7

How much of a radioactive kind of francium will be left after 44 minutes if you start with 2,616 grams and the half-life is 22 m

inutes?
Mathematics
2 answers:
Andrei [34K]1 year ago
8 0
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Katyanochek1 [597]1 year ago
6 0

Step-by-step explanation:

sorry but I dont know

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Stem question, can you plz tell me 3 types of natural water vapor other that steam, fog, and clouds, thanks.
alisha [4.7K]

Answer:

Smoke, Condensation, mist

Step-by-step explanation:

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5 0
3 years ago
0.067 as a fraction
tangare [24]

Answer: 67/1000

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which one of these is not congruent to angle 5?
Artemon [7]

Answer:

Step-by-step explanation:

The answer is 1 and 3

7 0
3 years ago
(Adding and Subtracting Polynomials)
andrey2020 [161]

Adding and subtracting big polynomials like these are pretty easy. You just need to combine like terms. For example:

1.)

{5x}^{2}  +  {3x}^{2}  =  {8x}^{2}

2.)

({3x}^{2}  + 5xy) + (7xy + 2) =

{3x}^{2} + 12xy + 2

(The 3x^2 and the 2 stay intact while the 5xy and 7xy combine together)

All you have to do is combine the numbers that have the same powers of x and y with each other. x^2 will combine with x^2 and xy^2 wil combine with xy^2 exc. If there is no other number with the same x and y's, then you just leave it as it is in the answer.

Now with the original question, I see a -9xy^3, and thats gonna combine with the 3xy^3 in the second polynomial and the 2xy^3 in the third one.

- 9x {y}^{3}  + 3x {y}^{3}  + 2x {y}^{3} = \\  - 4x {y}^{3}

So far we have -4xy^3, the next term is going to be a -9x^4y^3, and that's gonna combine with the 3x^4y^3 in the third one.

- 9 {x}^{4} {y}^{3}  + 3 {x}^{4}  {y}^{3}  =  - 6{x}^{4}  {y}^{3}

We now finished adding the like terms that were in the first polynomial, we will move onto the second polynomial. The first term in this one is 3xy^3, in which we already added in the first step. At this point, it doesn't look like there are any other terms that have the same x and y behind them. So we can move on and write the final answer:

- 4x {y}^{3} - 6 {x}^{4} {y}^{3}  + 7 {y}^{4}  \\ - 8 {x}^{4} {y}^{4}

(All on the same line of course)

Also, for your second question, the order does not matter in which you write the terms. I could write the 7y^4 behind the -8x^4y^4 and it would still be the same answer.

If you have any other questions let me know :) while I double check my work.

6 0
3 years ago
Is this a percent increase or decrease? How do you know? 5 cups to 8 cups
kicyunya [14]

Answer:

increase

Step-by-step explanation:

Increase definition: become or make greater in size, amount, intensity, or degree.

Decrease definition: make or become smaller or fewer in size, amount, intensity, or degree.

5 0
2 years ago
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