1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Verizon [17]
2 years ago
13

Suppose a lake contains blue and green algae. The blue algae has an initial mass of 20 kg and doubles its mass every hour. The g

reen algae has an initial mass of 160 kg and grows at a constant rate of 0.20 kg per minute.
1) Which algae has a larger mass at 3 hours, in kilograms?

A) The blue algae has 12 kg more mass at 3 hours.
B) The green algae has 12 kg more mass at 3 hours.
C) The blue algae has 36 kg more mass at 3 hours.
D) The green algae has 36 kg more mass at 3 hours.

2) Which algae has a larger mass at 4 hours, in kilograms?

A) The blue algae has 56 kg more mass at 4 hours.
B) The green algae has 56 kg more mass at 4 hours.
C) The blue algae has 112 kg more mass at 4 hours.
D) The green algae has 112 kg more mass at 4 hours.
Mathematics
1 answer:
loris [4]2 years ago
6 0

Answer:  1) D

2) C

Step-by-step explanation:

1. The blue algae has an initial mass of 20 kg and doubles its mass every hour. Then after t hours, the mass of blue algae is

2. The green algae has an initial mass of 160 kg and grows at a constant rate of 0.20 kg per minute. Then after t hours (60t minutes), the mass of green algae is

Part I) At t=3:

The mass of green algae has 196-160=36 kg more mass at 3 hours.

Part II) At t=4:

The blue algae has 320-208=112 kg more mass at 4 hours.

You might be interested in
A plane travelled at an average speed of 528.6 km/h on a flight. How far did the plane travel in 4.75 hours? Round off your answ
KatRina [158]

Answer: 2,511 km

Step-by-step explanation:

5828.6*4.75 = 2,510.85 rounded to 2,511

5 0
2 years ago
Alex has 905 stickers. some of them are animal stickers and the rest of them are airplanes stickers. how many of each could he h
Nookie1986 [14]
You could solve this by doing 905 divided by the total of animal stickers
6 0
3 years ago
Help QUICKLY please! ill mark brainliest
Schach [20]

Answer:

It should be 905m3

Step-by-step explanation:

Result

Volume =  

4  πr3

3

=  

4 ×π×63

3

=  288π

=  904.77868423386 feet3

Even if it says feet, the measure doesn't really matter on this one.

7 0
3 years ago
Multiply the complex numbers: (1∕2 + 4i)2
andrezito [222]

Step-by-step explanation:

153∕4 + 8i is the correct answer

3 0
3 years ago
Read 2 more answers
If f(x) =-2x+9 and g(x)=-4x^2+5x-3 ,find (f•g)(x)
madam [21]

Answer:

f(x)=-2x+9 g(x)=-4x^2+5x-3Now, f o g (x) = f{g(x)} = f(4x^2+5x-3) = 2(4x^2+5x-3) + 9 = 8x^2+10x-6 + 9

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • 1 - 4/7 or one minus 4 over seven
    14·2 answers
  • A bag has 2 blue marbles 3 red marbles and 5 white marbles. Which event has a probability greater than 1/5 select three options
    15·1 answer
  • Xhoose the word incorectlycomplete the sntence
    6·1 answer
  • A paper company needs to ship paper to a large printing business. The paper will be shipped in small boxes and large boxes. Each
    8·1 answer
  • What is an equivalent expression for 1.5(3x + 4) +0.25(6x + 8)?
    13·2 answers
  • HELp Help Help... fnljwbfjwopfowq
    10·1 answer
  • Enter an equation for the word sentence. Use the variable c for the cost.
    12·2 answers
  • Find the measure of the indicated angle to the nearest degree.
    6·2 answers
  • You bought your friend's bike and owe $60.00 to your friend to finish paying for it. You do chores and earn $4.00 per day (7 day
    11·1 answer
  • What value of n makes the equation true?<br><br> -1/5n + 7 = 2<br><br><br> n =
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!