need this for homework
1.What happens when fertilizer ends up in waterways?
2. Describe eutrophication.
3. What has happened at the mouth of the Mississippi River?
Answer:
1.When manure or commercial fertilizers enter surface water, the nutrients they release stimulate microorganism growth. Without sufficient dissolved oxygen in surface water, fish and other aquatic species suffocate. The resulting dead fish and other aquatic species degrade the water quality and cause unpleasant odors.
2.Eutrophication is a significant increase of algae (microscopic organisms similar to plants) due to the greater availability of one or more growth factors necessary for photosynthesis, such as sunlight, carbon dioxide and nutrients (nitrogen and phosphorus)
3. I don't know I am way to tired sorry
Step-by-step explanation:
1. When manure or fertilizers enter water, the nutrients they release stimulate microorganism growth. These microorganisms reduce the dissolved oxygen content of the water body. Without sufficient dissolved oxygen in water, fish and other animals living in water suffocate.
2. Eutrophication is the process by which water bodies are enriched with minerals and nutrients.
Sorry I don't know the answer to question 3
Which situation would require determining volume?
A Nick wants to know how much tile it takes to cover the floor of a room.
B Sarah wants to know how much water her fish tank can hold.
C Min wants to know how much fence is needed to go around the edges of his yard.
D Kiki wants to know how wide her window is.
Answer:
b
Step-by-step explanation:
because volume is like filling and 3d everything else is area and perimeter
Out of all the situations described, the only one where volume would need to be determined is B Sarah wants to know how much water her fish tank can hold.
When it comes to any measurement involving how much water is needed for something, volume is always the best measurement because water is measured in volume. Sarah's situation is therefore the situation that requires volume.
The other options are wrong because:
Knowing how much tile to use requires area Knowing how much fence will go around a year requires perimeter Knowing how wide a window is requires measuring the width of the windowIn conclusion, Sarah needs to determine volume to know how much water the tank can hold.
Find out more at https://brainly.com/question/15533435.
please help i dont know how to do this!! will give brainleist if you show work
Bob sets the price of the plants according to their height in inches. A plant that is 9.5 inches high costs $2.28 in his store.What is the price per inch of a plant? 0.24
What is the price of a plant that is 5.5 inches high? Show your calculation.
Answer:
1.32
Step-by-step explanation:
.24×5.5=1.32
Answer:
0.24 and 1.32
Step-by-step explanation
I'm pretty sure :)
PLS HELP easy math PLEEEEEEEEEEEEEEEEEAASSSSSSSSSSSSEEEEEEEEEEEE
Answer:
A is 23x+2=94
B is 4
C is 20.5 by 26.5
Step-by-step explanation:
To solve get the equation, you have to combine the two equations, which gets you 5.5x -1.5 + 6x +2.5
Then you combine like-terms, which is 5.5x+6x and -1.5 +2.5 and that equals 11.5x + 1 and then multiply that by 2 {2(11.5x +1) } and you should get
23x+2 and then put the 94 at the end (23x + 2 = 94). Then just solve the equation and you get the rest of the answers.
Please help please please help and actually answer please
A 12,000-gallon pool is being filled at a rate of 40 gallons per minute. At this rate, how many minutes will it take to fill the pool 3/4 full?
Answer:
It would take 225 minutes to fill up 3/4 of the pool
Step-by-step explanation:
100 points, (1-7, I need help with all of them please, you can explain stuff too)
1. "The number of years from the start of the Great Depression to the first presidential election of Richard Nixon is six years less than three times Raul's age. Nixon's first presidential election happened 39 years after the Great Depression. Using the given information, write an equation to find Raul's age, r."
2. "Rewrite the equation from part A by factoring the side that contains the variable r."
3. "Solve the two previous equations for r. What value does each equation give for Raul's age. Are the two values the same?"
4. "Raul's grandfather is Miguel, and Raul's sister is Paula. Raul's age is the same as his grandfather's age minus 60 times the age of his sister. Miguel is 65 years old. Using the results from question 2, write an equation to find Paula's age, p, in years."
5. "Rewrite the equation from question 4 by factoring the side that contains the varible p."
6. "Solve the equation for p to find Paula's age. Express her age in years as a fraction."
7. "How many months old is Paula?"
Answer:
Answer:
Raul's age is 15 years.
Step-by-step explanation:
r represents Raul's age.
The number of years from the start of the Great Depression to the first presidential election of Richard Nixon is six years less than three times Raul's age.
The first presidential election happened 39 years after the Great Depression and six years less than three times Raul's age is 3r - 6.
Therefore, 3r - 6 = 39
Add 6 to both sides.
3r = 45
Divide both sides by 3.
r = 15
Hence, Raul's age is 15 years.
plz help me asap I will give the brainiest to a good answer
Me and my friend really don't understand this. If anyone can help within 5 minutes, it'd help a lot.
Thanks :)
Answer:
the ratio is 18:81
Step-by-step explanation:
Okay so when a question is asking for a ratio it is basically asking a number compared to another:
So if you had 14 green frosted cupcakes and 8 blue frosted cupcakes what is the ratio of total frosted cupcakes to blue cupcakes:
the answer would be 22:8
Because you are trying to compare the total number of cupcakes to the blue cupcakes.
So back to your equation it wants to know the ratio between empty spots and the total number of parking spaces
Since we know that 63 of the spots have cars and 18 spots are empty we are going to add 63 and 18 together to get the total amount of parking spaces:
18 + 63 = 81
And since they want to know the empty spots compared to the total number of parking spaces we are going to be putting 18:81.
Hope this helped you!!!
Answer:
18:81
Step-by-step explanation:
answer plz it a maath question
Answer:
28x +8y +2
Step-by-step explanation:
-2( 3x+12y-5-17x-16y+4)
Combine like terms
-2( -14x-4y-1)
Distribute
28x +8y +2
Which set of statements explains how to plot a point at the location (Negative 3 and one-half, negative 2)?
Start at the origin. Move 3 and one-half units right because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between 3 and 4. Move 2 units down because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units down because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units left because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units down because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units right because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units left because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units down because the y-coordinate is -2.
Answer:
Start at the origin. Move 3 and one-half units left because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units down because the y-coordinate is -2.
Step-by-step explanation:
Please help me I'm so confused
Answer:
a: 256
B: (1,4), (2,3), (3,2), (4,1)
c: $335.36
d: 2012.16in.
Step-by-step explanation:
a:2^3×2^5=2^8=256
b:2^1×2^4=2^2×2^3=2^3×2^2=4^1×2^1=32
c:2^8×2^8=2^16=33536 which means there are 33536 pennies which are equal to $335.36.
b:33536 pennies × 0.06 = 2012.16
Plz help quickly i need this by today at 9 pm or I'm grounded. brainliest i will give it to the first person with correct answers. I NEED ALL ANSWERS AND PLZ DONT ANSWER FOR THE POINTS I WILL REPORT YOU. fyi, the functions in the second picture go with the graphs you just need to tell me which functions goes with which graph. plz i already lost 32 points and read the instructions on the pictures.
Answer:
99% sure its D
Step-by-step explanation:
Answer:
i think its D
Step-by-step explanation:
PLEASE HELP ASAP!!!!
Answer:
1. [tex]\frac{46}{7}[/tex]
2. 6.6
3.6.8
4.[tex]\sqrt{47}[/tex]
Step-by-step explanation:
MATH-IXL , Look at the picture below to answer CORRECTLY. Only give me one right answer So i can mark yall as Brainliest!
SHOW HOW YOU DO THE MATH PROBLEM STEP BY STEP.
Write an equation that represents the relationship in the recipe above, using s for cups of soda water and p for cups of pineapple juice. *
this is for the soda one
Answer:
3/4
Step-by-step explanation:
please help!!!! im stuck on this oneeeeeeeeeeeeee and also explain
Answer: B. 3n + 9
Step-by-step explanation:
there are 3 with an unknown value so it is 3n and there are 9 pieces that are each equal to 1 witch makes it 3n+9. hope this helps have a good day
please help my work is almost dues and i dont understand it
Ms. Arvelo’s dog weighs too much! The vet says that he needs to be 50 pounds. He currently is 70 pounds. The vet wants him to lose weight in the next 4 weeks. Create an equation to determine the number of pounds, p, that Ms. Arvelo’s dog has to lose per week.
Answer:
5 pounds per week
Step-by-step explanation:
70 - 50 = 20 meaning he has to lose 20 pounds in 4 weeks so divide 20 by 4 you get 5 pounds per week.
A rectangular prism is shown below. What is the lateral surface area?
Answer:
the answer is 110 because 5 times 2 equals 10 and 10 times 11 is 110
Answer:
2(11)(5)+2(11)(2)+2(2)(5)=110+44+20=174
174 Square Centimetres
solve the equation -5y + 4 = -11
Answer:
y=3
Step-by-step explanation:
Answer: y=3
Step-by-step explanation:
-5y+4-4=-11-4
-5y=-15
y=3
Which is an equivalent expression of:
6(3x + 5) - 11
A.18x - 5
B.18x + 10
C.18x - 11
D.18x + 19
Enter the value of p so the expression 5/6 - 1/3n is equivalent to p(5-2n)
Answer:
I guess it's 1/6
Step-by-step explanation:
make it braintliest please
Combine like terms and simplify 4r - 6 - 2r + 5
A. 2r - 1
B. 10r + 5
C. 10r - 3
D. 2r + 1
Help Please (I needed 20 characters)
A die is rolled 200 times with the following results.
Outcome
1
2
3
4
5
6
Frequency
32
36
44
20
30
38
What is the experimental probability of rolling the given result?
a prime number
a.
0.45
c.
0.71
b.
0.55
d.
0.73
Please select the best answer from the choices provided
A
B
C
D
Answer:
∝∞°··········Hello wonderful person··········°∞∝
Your answer should be:
0.55
Step-by-step explanation:
I hope this answered your question
Please mark brainliest! It will be appreciated!
Have a wonderful and blessed day!
Collect like terms to simply the expression
3r + (-3r) =
Blank 1:
Question 8 (1 point)
Collect like terms to simplify the expression
2j + (-9j) =
Blank 1:
Question 9 (1 point)
Collect like terms to simplify the expression
12 + 4b - 3 + 2c =
Blank 1:
Question 10 (1 point)
Collect like terms to simplify the expression
7y + 8 - 2y + 4 =
Blank 1:
Question 11 (1 point)
Collect like terms to simplify the expression
2a + 3b - 3a + 4c - b =
(This is not the same as the question before. Look closely.)
Blank 1:
Question 12 (1 point)
What is the perimeter of this triangle (in simplest form)?
Your answer should not have parentheses or multiplication symbols !
Blank 1:
Question 13 (1 point)
Which TWO expressions below are equivalent? (Make sure to click TWO answers !)
a
2(x - 5) + (-7)
b
2x - 17
c
2x - 12
d
x + (-7) + x + 5
e
x + (-7) + (-10)
Question 14 (1 point)
What shows the proper factoring of this expression?
4d + 24
a
4(d + 6)
b
2(d + 12)
c
4d(4 + 6)
d
6(d + 4)
Question 15 (1 point)
What is the proper factoring for this expression?
50 + 25x + 75y
a
75(x + y)
b
25(2 + x + 3y)
c
25(2 + 2x + 3y)
d
25(x + 3y)
Question 16 (0 points)
How confident do you feel about your ability to master this material by January 19?
(Don't worry--by the time we get to the first quiz, you will have had many chances to practice the ideas from this pre-test.)
a
Very confident
b
Pretty confident
c
A little confident
d
Not very confident
Answer:
7. 3r+(-3r)=0
8. 2j + (-9j) =-7j
9. 12 + 4b - 3 + 2c = 4b+2c+9
10. 7y + 8 - 2y + 4 = 5y+12
11. 2a + 3b - 3a + 4c - b = -a+2b+4c
12. i cant see the triangle
13. a 2(x - 5) + (-7) and c 2x - 12
14. a 4(d+6
15. b 25(2 + x + 3y)
Step-by-step explanation:
Rearrange the equation so M is the independent variable
[tex]-2m-5n=7m-3n[/tex]
[tex]n=[/tex]
A right triangle has a hypotenuse of length 13 in. and a leg with length 4 in. What is the length of the other leg?
Answer:
Solution,
Let the hypotenuse of the right triangle be 'a' and its legs be 'b' and 'c'.
Here, a= 13, b = 4 and c=?
Using Pythagoras or Gogou theorem,
a² = b² +c²
or, 13² = 4² +c²
or, c² =153
or, c = 3√17 inch
need help ASAP!!!!!!!!
Answer:
This organism has many bright orange spikes on it's back. It had two antennas on its head. And is a mix of blue and purple for its body. Its body is skinny and long.
Step-by-step explanation: