So, -(a-3b) becomes -1(a-3b). Then, this becomes 5a-1a+3b. There is +3b because there is a double negative. So, 5-1=4, so your answer is 4a+3b. Pls brainliest
Answer:
Step-by-step explanation:
Is there a question somewhere in there?
Answer:
Approximately 3 grams left.
Step-by-step explanation:
We will utilize the standard form of an exponential function, given by:

In the case of half-life, our rate <em>r</em> will be 1/2. This is because 1/2 or 50% will be left after <em>t </em>half-lives.
Our initial amount <em>a </em>is 185 grams.
So, by substitution, we have:

Where <em>f(t)</em> denotes the amount of grams left after <em>t</em> half-lives.
We want to find the amount left after 6 half-lives. Therefore, <em>t </em>= 6. Then using our function, we acquire:

Evaluate:

So, after six half-lives, there will be approximately 3 grams left.
Answer:
b. 4m
Step-by-step explanation:
congruent polygons means same shape, size, angles, and sides.
Answer:
24 1/6 - 19 5/12=
24 1/6÷12- 19 5/12÷12
24 2/2- 19 5/1= 5 3/1
3÷1= 3
5÷3= 3 1/2
Step-by-step explanation:
Step 1: Do the lcd and the number in between what you do is multiply the number next to it.
Step 2: Then subtract the mixed numbers and you get your answer.
Step 3: Divide 3 by 1
Step 4: Divide 3 by 5 and answer is 3 1/2