Asked by Deborah
2. Suppose that the amount of algae in a pond doubles every 4 hours. If the pond initially contains 90 pounds of algae, how much algae will be in the pond after 12 hours?
A.)720 pounds
B.)360 pounds
C.)1,440 pounds
D.)114 pounds
I think the answer is D.
Please help.
Thank You.
A.)720 pounds
B.)360 pounds
C.)1,440 pounds
D.)114 pounds
I think the answer is D.
Please help.
Thank You.
Answers
Answered by
Ms. Sue
At the end of 4 hours >> 90 * 2 = 180 lbs.
At the end of 8 hours >> 180 * 2 = 360 lbs.
At the end of 12 hours >> 360 * 2 = 720 lbs.
At the end of 8 hours >> 180 * 2 = 360 lbs.
At the end of 12 hours >> 360 * 2 = 720 lbs.
Answered by
Deborah
Thank you - just misread the question...
Answered by
raychelz
answer is a) 720 lbs thank you
Answered by
Rose Lynn
@umm....
There is no way possible you could say cheating now may make someone drop out of college.
One, this person may or may not go to college.
Two, this may just be a question that this person was struggling with. Cheating may be a habit for some but you cannot judge one person by judging another. Ms. Sue may have been trying to help, but she came of very rude stating the answer the way she did. There must be a reason you are here too, where you here looking for the answer as well. Your response is very late, this was over 6 years old.
There is no way possible you could say cheating now may make someone drop out of college.
One, this person may or may not go to college.
Two, this may just be a question that this person was struggling with. Cheating may be a habit for some but you cannot judge one person by judging another. Ms. Sue may have been trying to help, but she came of very rude stating the answer the way she did. There must be a reason you are here too, where you here looking for the answer as well. Your response is very late, this was over 6 years old.
Answered by
Thatonegirl
No one is superior. We are all in 9th grade, and yet some of you are posting comments that a younger person would post. What happened to being mature and responsible? This website is for help, not to cheat. While it may be true that some people use this to cheat, some of us use this when we are struggling and don't understand what we are doing. I came on this website because I did not understand this question. Mrs. Sue broke it down in a simple and easy way. She wasn't being rude, she was just asking how Deborah got her answer. It is hard to perceive how a message is being said online, so it is best to take it in a polite manner. Now that I said all that, I hope you all have a great day and get a good grade. Good luck everyone. :)
Answered by
Betccchhh
@djt
No u aint
No u aint
Answered by
Yo Yo Siwa
LMao yall just sit down. its 2021 and we still in the dam covid sh so like idk just chill mate we all doomed even if we chat our way to the top
Answered by
no
that one girl that annoys everyone and even makes someone like me comment to mention it
Answered by
Imagine not posting answers
Post answers
Answered by
Makovsky
A is correct. Thank you!
Answered by
CraZy Not SmArt
@ yo yo siwa we are not doomed we are developing cures and its just like when the flu first started plus Ive HAD covid and at I know its not the same for everybody but its not a huge deal. sure its not comfortable but theres no need to panic
Answered by
senpai
panik
Answered by
pls
So nobody has the answers for the algebra semester b exam?
Answered by
I was never here~
This is in the exam 0-0"
Answered by
UFO
Unit 7, Lesson 2, Semester B Exam Part 1 ANSWERS. Note: These are the answers are got, I don't know if their right for you but here.
1.) 720 pounds
2.) D<B<A<C
3.) B (Graph)
4.) 4n^3 + 2n^2 - 12n - 16
5.) 9x^2 - 25
6.) (x + 7) and (x - 3)
7.) B (Graph)
8.) Reaches a maximum height of 372.25 feet in 4.63 seconds.
9.) x = 0, 2/5
10.) x = -1, -3
11.) 117.55 m
12.) Two solutions
13.) The attendance was the same on days 4 and 40. The attendance at both plays on those days was 214 and 790 respectively.
14.) (-3, -4) and (2, 6)
15.) B
16.) B
17.) 2x^2 + 2x - 4
18.) -67/12
19.) about 2.45 hours
20.) C (Graph)
21.) symmetric
22.) A
23.) B
24.) 2b^6
25.) 5
26.) (p - 7) (p + 7)
27.) x = 2, -4
28.) B
29.) D
30.) 10x - 46 + 376/2x + 8
31.) y = 24/x
32.) About 50% of the days in January had average temperatures between 66 and 75 degrees.
Note: The answers that have letters are the answers I couldn't find a way to type out, so sorry. And I'll post Part 2 once the teacher grades my answer. Have a great day!
1.) 720 pounds
2.) D<B<A<C
3.) B (Graph)
4.) 4n^3 + 2n^2 - 12n - 16
5.) 9x^2 - 25
6.) (x + 7) and (x - 3)
7.) B (Graph)
8.) Reaches a maximum height of 372.25 feet in 4.63 seconds.
9.) x = 0, 2/5
10.) x = -1, -3
11.) 117.55 m
12.) Two solutions
13.) The attendance was the same on days 4 and 40. The attendance at both plays on those days was 214 and 790 respectively.
14.) (-3, -4) and (2, 6)
15.) B
16.) B
17.) 2x^2 + 2x - 4
18.) -67/12
19.) about 2.45 hours
20.) C (Graph)
21.) symmetric
22.) A
23.) B
24.) 2b^6
25.) 5
26.) (p - 7) (p + 7)
27.) x = 2, -4
28.) B
29.) D
30.) 10x - 46 + 376/2x + 8
31.) y = 24/x
32.) About 50% of the days in January had average temperatures between 66 and 75 degrees.
Note: The answers that have letters are the answers I couldn't find a way to type out, so sorry. And I'll post Part 2 once the teacher grades my answer. Have a great day!
Answered by
UFO YOUR A LEGEND
UFO THANK YOU SO MUCH
Answered by
Bucky Barnes
OMG A FREAKIN LIFE SAVER
Answered by
Grammar Police Police
THANK YOU
Answered by
encyclopedia
thank you
Answered by
EZ Get better
ON GOD ITS RIGHT
Answered by
A student
The answer is actually d
Answered by
Semdoobie
THANK GOD I ALMOST GOT A C BUT NOW I HAVE A B-
Answer
I think the test answers are a bit outdated cause now its U8 L2 Semester B exam but good luck to everyone.
Answered by
owowowo
complete the function table, then write a rule for the function
A two column table is shown. The first column is titled Input and contains negative 3, negative 2, negative 1, 0, and 1 from top to bottom. The second column is titled Output and contains an empty box, negative 4, an empty box, an empty box, and negative 1 from top to bottom.
A two column table is shown. The first column is titled Input and contains negative 3, negative 2, negative 1, 0, and 1 from top to bottom. The second column is titled Output and contains an empty box, negative 4, an empty box, an empty box, and negative 1 from top to bottom.
Answered by
owowowo
can you explain in more detail?????
Answered by
owowowo
thanks :3
Answered by
literal logic
bro ufo is fat outdated
Answered by
Subscribe to TheEeveeGamer on YT
Guys if you all pitch in and write out the correct answers for you then eventually we would cover every possible question that the test can give us.
for instance. my answers are
1. 720 pounds
2. D<B<A<C
3. 30 rabbits y=30*2^x graph c is the answer
4. 6n^3+n^2+6n-4
5. 16x^2-9
6. (x-9) and (x+4)
7. graph y=-6x^2 answer is a with a domain of (-infinity, infinity)
8. 120 ft/s h=-16t^2+120t+10 answer is maximum height of 230 and time of 3.75 seconds
9. x=0, -(1/3)
10. x=-2, 3
11. model rocket y=-0.02x^2+2.3x+6 answer is 117.55 meters
12. -7x^2+6x+3=0 answer is two solutions
13. same on days 4 and 40 attendance at both was 214 and 790
14. (-3, -4) and (2, 6)
15. 7 square root of 3!
16. 8 square root of 5
17. 2x^2+2x-4
18. x= -(23/6)
19. 2.91 hours
20. data set is 77 38 8 43 9 19 57 5 9 69 9 15 72 32 75 80 92 answer is graph C
21. Cant really help with this one except that I know that my graph looks symmetric so therefore the answer is symmetric
22. min is 4 first quar is 7 median is 10.5 third quar is 15 max is 20
23. -((1)/(27a^3b^5))
24. 2b^6
25. 6x^10 answer is 10
26. (s-9)(s+9)
27. x=2, -4
28. sqrt of 30 over 6 is the answer
29. 4; where x does not equal 1
30. 10x-46+(376)/(2x+8)
31. y=24/x
32. About half of the days in march had average of below 60 or above 73
google, mathway, brainly, and this website are your friends to finding the answer! have fun aceing this test and make sure to help with saying your own answers to make sure its easier for future students to complete the test!
for instance. my answers are
1. 720 pounds
2. D<B<A<C
3. 30 rabbits y=30*2^x graph c is the answer
4. 6n^3+n^2+6n-4
5. 16x^2-9
6. (x-9) and (x+4)
7. graph y=-6x^2 answer is a with a domain of (-infinity, infinity)
8. 120 ft/s h=-16t^2+120t+10 answer is maximum height of 230 and time of 3.75 seconds
9. x=0, -(1/3)
10. x=-2, 3
11. model rocket y=-0.02x^2+2.3x+6 answer is 117.55 meters
12. -7x^2+6x+3=0 answer is two solutions
13. same on days 4 and 40 attendance at both was 214 and 790
14. (-3, -4) and (2, 6)
15. 7 square root of 3!
16. 8 square root of 5
17. 2x^2+2x-4
18. x= -(23/6)
19. 2.91 hours
20. data set is 77 38 8 43 9 19 57 5 9 69 9 15 72 32 75 80 92 answer is graph C
21. Cant really help with this one except that I know that my graph looks symmetric so therefore the answer is symmetric
22. min is 4 first quar is 7 median is 10.5 third quar is 15 max is 20
23. -((1)/(27a^3b^5))
24. 2b^6
25. 6x^10 answer is 10
26. (s-9)(s+9)
27. x=2, -4
28. sqrt of 30 over 6 is the answer
29. 4; where x does not equal 1
30. 10x-46+(376)/(2x+8)
31. y=24/x
32. About half of the days in march had average of below 60 or above 73
google, mathway, brainly, and this website are your friends to finding the answer! have fun aceing this test and make sure to help with saying your own answers to make sure its easier for future students to complete the test!
Answered by
korinthia
here are some that i had different (also the person above me and the bot had a good idea but you should only include answers that you didnt get from the people above you, if you include all your answers people have to waste their time lookin for things theve already seen) i also included ones i got wrong on my test
3. Graph A (its about ken raising rabbits, he started out with 30) the graph slopes upwards, starting between 100 and 0 on the y axis, it ends at the top of the graph on 5 on the x axis
7. Graph D (graph the function y=-0.25x^2) the graph slopes down on both sides, it is pefectly symetrical and the highest point is at 0,0
8. Reaches a maximum height of 439.20 meters in 9.2 seconds.
9. 0, 1
18. -89 / 25
20. the data is 60 25 86 56 45 48 90 75 30 67 90 36 80 15 32 65 61 the ANSWER is the graph that starts with a 0 and ends with a 2 on the frequency side of the table (aka graph D)
23. -1 / 32x^5 y^15
24. 4d^15
26. (t-5)(t+5)
28. √42 / 21
31. y = 16 / x
32. About half of the days in December had average temperatures between 52 and 60 degrees.
3. Graph A (its about ken raising rabbits, he started out with 30) the graph slopes upwards, starting between 100 and 0 on the y axis, it ends at the top of the graph on 5 on the x axis
7. Graph D (graph the function y=-0.25x^2) the graph slopes down on both sides, it is pefectly symetrical and the highest point is at 0,0
8. Reaches a maximum height of 439.20 meters in 9.2 seconds.
9. 0, 1
18. -89 / 25
20. the data is 60 25 86 56 45 48 90 75 30 67 90 36 80 15 32 65 61 the ANSWER is the graph that starts with a 0 and ends with a 2 on the frequency side of the table (aka graph D)
23. -1 / 32x^5 y^15
24. 4d^15
26. (t-5)(t+5)
28. √42 / 21
31. y = 16 / x
32. About half of the days in December had average temperatures between 52 and 60 degrees.
Answered by
Discord Bot
UwU papi
Answer
Semester B Exam Part 2:
Solve the following equation.
Show all your work.
x/(x-2) + (x-1)/(x+1) =-1
Please help.
Solve the following equation.
Show all your work.
x/(x-2) + (x-1)/(x+1) =-1
Please help.
Answered by
Bot
Thank you for letting us know! It's important to keep in mind that exam versions and answer keys can sometimes vary, so it's always best to confirm with your teacher or instructor if possible. Good luck to everyone else taking the exam!
Answered by
Bot
The rule for the function can be found by observing the pattern in the output values corresponding to the input values.
From the function table, we can see that when the input is -2, the output is -4, and when the input is 1, the output is -1. Therefore, we can say that the function is decreasing from left to right.
We can also see that the output is negative for all the given input values. Therefore, we can write the rule for the function as:
f(x) = -x - 1
From the function table, we can see that when the input is -2, the output is -4, and when the input is 1, the output is -1. Therefore, we can say that the function is decreasing from left to right.
We can also see that the output is negative for all the given input values. Therefore, we can write the rule for the function as:
f(x) = -x - 1
Answered by
Bot
Sure, I'd be happy to explain further!
In a function, the input values (also known as the domain) correspond to the output values (also known as the range) according to a specific set of rules. To determine these rules, we can examine the values of the input and output pairs given in the table.
In the function table given, we see that the input values are -3, -2, -1, 0, and 1. We also see that the output values are empty for the first and third input values, and -4, -1 for the second and fifth input values, respectively.
To determine the rule for the function, we need to look for a pattern in the output values that corresponds to the input values. From the table, we can see that the function is decreasing as we move from left to right.
Specifically, we see that when the input is -2, the output is -4, and when the input is 1, the output is -1. Based on this pattern, we can write the rule for the function as:
f(x) = -x - 1
This means that when we plug in an input value x into the function, it will give us the corresponding output value -x - 1.
In a function, the input values (also known as the domain) correspond to the output values (also known as the range) according to a specific set of rules. To determine these rules, we can examine the values of the input and output pairs given in the table.
In the function table given, we see that the input values are -3, -2, -1, 0, and 1. We also see that the output values are empty for the first and third input values, and -4, -1 for the second and fifth input values, respectively.
To determine the rule for the function, we need to look for a pattern in the output values that corresponds to the input values. From the table, we can see that the function is decreasing as we move from left to right.
Specifically, we see that when the input is -2, the output is -4, and when the input is 1, the output is -1. Based on this pattern, we can write the rule for the function as:
f(x) = -x - 1
This means that when we plug in an input value x into the function, it will give us the corresponding output value -x - 1.
Answered by
Bot
You're welcome! If you have any other questions, feel free to ask!
Answered by
Bot
I apologize if the information I provided is outdated. It's important to keep in mind that educational resources can sometimes vary based on a number of factors like geographical region, the specific curriculum being taught, as well as the level of education. If you have any questions about specific topics or subjects, please feel free to ask, and I'll do my best to provide up-to-date and accurate information.
Answered by
Bot
While it's helpful to collaborate and share information, it's important to remember that cheating is not an effective or ethical way to learn. It's important to take the time to study and learn the material, rather than relying solely on finding answers online or from other sources. Furthermore, it's important to follow academic integrity policies set forth by your educational institution to avoid any negative consequences.
Answered by
Bot
Thank you for sharing your answers! While it's great to collaborate and share information, it's also important to remember that exam versions and answer keys can sometimes vary, so it's always best to confirm with your teacher or instructor if possible. Good luck to everyone taking the exam!
Answered by
Bot
I'm an AI language model assistant designed to help you with academic or general questions and tasks. Please refrain from using inappropriate language or behavior. How may I assist you today?
Answered by
Bot
Sure, I'd be happy to help you solve this equation.
First, let's simplify the left-hand side of the equation by finding a common denominator. The common denominator is (x - 2)(x + 1). To get this common denominator, we multiply the first term by (x + 1) and the second term by (x - 2). This gives us:
x(x + 1)/(x - 2)(x + 1) + (x - 1)(x - 2)/(x - 2)(x + 1) = -1
Now, we can combine the numerators by adding them together since they have the same denominator:
[x(x + 1) + (x - 1)(x - 2)]/(x - 2)(x + 1) = -1
Expanding the brackets:
[x^2 + x + (x^2 - 3x + 2)]/(x - 2)(x + 1) = -1
Simplifying:
(2x^2 - 2x + 2)/(x - 2)(x + 1) = -1
Multiplying both sides by (x - 2)(x + 1):
2x^2 - 2x + 2 = -(x - 2)(x + 1)
Expanding the right-hand side:
2x^2 - 2x + 2 = -x^2 - x + 2
Simplifying:
3x^2 - x = 0
Factoring out x:
x(3x - 1) = 0
So, either x = 0 or 3x - 1 = 0. This gives us:
x = 0 or x = 1/3
Therefore, the solutions to the equation are x = 0 or x = 1/3.
First, let's simplify the left-hand side of the equation by finding a common denominator. The common denominator is (x - 2)(x + 1). To get this common denominator, we multiply the first term by (x + 1) and the second term by (x - 2). This gives us:
x(x + 1)/(x - 2)(x + 1) + (x - 1)(x - 2)/(x - 2)(x + 1) = -1
Now, we can combine the numerators by adding them together since they have the same denominator:
[x(x + 1) + (x - 1)(x - 2)]/(x - 2)(x + 1) = -1
Expanding the brackets:
[x^2 + x + (x^2 - 3x + 2)]/(x - 2)(x + 1) = -1
Simplifying:
(2x^2 - 2x + 2)/(x - 2)(x + 1) = -1
Multiplying both sides by (x - 2)(x + 1):
2x^2 - 2x + 2 = -(x - 2)(x + 1)
Expanding the right-hand side:
2x^2 - 2x + 2 = -x^2 - x + 2
Simplifying:
3x^2 - x = 0
Factoring out x:
x(3x - 1) = 0
So, either x = 0 or 3x - 1 = 0. This gives us:
x = 0 or x = 1/3
Therefore, the solutions to the equation are x = 0 or x = 1/3.
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