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diamong [38]
3 years ago
10

Need help with what I did they all add up to 4 which is what the question asks for but it says that it not right

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
6 0

Answer: Try putting the positive number and then the negative number after the and like the example.

Step-by-step explanation:

Your answers are right, it could be a glitch.

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PLEASE HELP ME I GIVE 20 POINTS AND BRAINLIST TO WHOEVER HELPS ME FIRSTS
Nina [5.8K]

Answer:

3712

Step-by-step explanation:

5 0
3 years ago
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Suppose that the amount of algae in a pond doubles every 3 hours. If the pond initially contains 50 pounds of algae, how much al
allochka39001 [22]

Answer:

After 8 hour there will be 317.64 pounds of algae.

y-intercept: (0, 50)

Step-by-step explanation:

At time = 0 hours, there are 50 pounds of algae, after 3 hour there will be 100 pounds of algae, after 6 hour there will be 200 pounds of algae, and so on.

Exponential growth is modeled by the following equation:

y = x0*(1 + r)^t

where x0 is the amount of algae at the beginning, r is the rate of change, and y is the amount of algae after t hours. Replacing with data:

100 = 50*(1 + r)^3

2 = (1 + r)^3

ln(2) = 3*ln(1 + r)

r = exp(ln(2)/3) - 1

r = 0.26

This result can be checked as follows

y = 50*(1 + 0.26)^6 = 200

After 8 hours:

y = 50*(1 + 0.26)^8 = 317.64

The y-intercept corresponds to t = 0

y = 50*(1 + 0.26)^0 = 50

8 0
3 years ago
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Alik [6]

Answer:

i am confusion

Step-by-step explanation:

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5 0
2 years ago
solve 1/5 (x+2) + 2x = 6x-10. Please solve showing step by step using the distributive property. thank you.
Archy [21]
<span>1/5 (x+2) + 2x = 6x-10
1/5x + 2/5 + 2x= 6x-10
2 1/5x + 2/5= 6x-10
-3 4/5x = -10 2/5
x=52/19</span>
4 0
3 years ago
A bag contains 8 red, 4 blue, and 4 yellow marbles. What is the probability of randomly choosing 2 blue marbles without replacem
sleet_krkn [62]
Bags = 8+4+4=16
firs step
p1=4/16
second step
p2=3/15
P=4/16*3/15=1/4*1/5=1/20=0,05 - correct answer

6 0
3 years ago
Read 2 more answers
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