Answer:
Of the liquid surface fresh water, 87% is contained in lakes, 11% in swamps, and only 2% in rivers.
Step-by-step explanation:
The distribution of water on the Earth’s surface is extremely uneven. Only 3% of water on the surface is fresh; the remaining 97% resides in the ocean. Of freshwater, 69% resides in glaciers, 30% underground, and less than 1% is located in lakes, rivers, and swamps. Looked at another way, only one percent of the water on the Earth’s surface is usable by humans, and 99% of the usable quantity is situated underground.
3% of the earth's water is fresh. 2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost. 0.5% of the earth's water is available fresh water.11
Rain and seasonal flooding cause water levels to fluctuate. In the wet soil, water-tolerant vegetation grows and helps maintain a moist, swampy condition. In many freshwater swamps in the southeastern United States, cypress and tupelo trees grow. ... Alligators, frogs, and many other animals live in these swamps.
Somebody help me pls is due in 20 minutes!
Answer:
18x + 6 = 2( 9x + 3 )
18x + 6 = 3( 6x + 2 )
18x + 6 = 6( 3x + 1 )
Step-by-step explanation:
Answer:
1. 2(9x+3)
2. 3(6x+2)
3. 6(3x+1)
Step-by-step explanation:
Okay so in the first one there is a 2 outside of the parentheses which means we will multiply whatever is inside of the parentheses by 2.
9x*2=18x
3*2=6
18x+6=2(9x+6)
Okay so in the second one there is a 3 outside of the parentheses which means we will multiply whatever is onside of the parentheses by 3.
6x*3=18x
2*3=6
18x+6=3(6x+2)
Okay so in the third one there is a 6 outside of the parentheses which means we will multiply whatever is inside of the parentheses by 6.
3x*6=18x
1*6=6
18x+6=6(3x=1)
Help me! I will give brainilest
Answer:
a)1/25 b)9/49 c)121/64 d)1/100
Step-by-step explanation:
Just square all the values since the area of a square is a²
match each function with its rate of growth or decay
Answer:
y=5(1.05)^t=5% rate of growth
f(t)=50(0.95)^t=5% rate of decay
g(t)=50(1.5)^t=50% rate of growth
y=5(.5)^5=50% rate of decay
Step-by-step explanation:
y=5(1.05)^t= 1+x=1.05. x=0.05. 0.05= 5%, 5% rate of growth,
f(t)=50(0.95)^t=1-x=0.95, x=-0.05=-5%=5% rate of decay
g(t)=50(1.5)^t=1+x=1.5, x=0.5=50%, 50% rate of growth
y=5(.5)^5=1+x=0.5, x=-0.5=50%, 50% rate of decay
If this helps please mark as brainliest
The correct matching of the functions y = 5 · (1.05)ⁿ, y = 50 · (0.95)ⁿ, y = 50 · (1.5)ⁿ, and y = 5 · (0.05)ⁿ will be growth rate is 5%, the decay rate is 5%, the growth rate is 50%, and the decay rate is 50%, respectively.
What is an exponent?Consider the function:
y = a (1 ± r)ˣ
Where x is the number of times this growth/decay occurs, a = initial amount, and r = fraction by which this growth/decay occurs.
If there is a plus sign, then there is exponential growth happening by r fraction or 100r %
If there is a minus sign, then there is exponential decay happening by r fraction or 100r %
The functions are given as,
y = 5 · (1.05)ⁿ
y = 5 · (1 + 0.05)ⁿ
The growth rate is 5%.
y = 50 · (0.95)ⁿ
y = 50 · (1 - 0.05)ⁿ
The decay rate is 5%.
y = 50 · (1.5)ⁿ
y = 50 · (1 + 0.5)ⁿ
The growth rate is 50%.
y = 5 · (0.05)ⁿ
y = 5 · (1 - 0.5)ⁿ
The decay rate is 50%.
The correct matching of the functions y = 5 · (1.05)ⁿ, y = 50 · (0.95)ⁿ, y = 50 · (1.5)ⁿ, and y = 5 · (0.05)ⁿ will be growth rate is 5%, the decay rate is 5%, the growth rate is 50%, and the decay rate is 50%, respectively.
More about the exponent link is given below.
https://brainly.com/question/5497425
#SPJ2
2.4n + 1.2n - 0.12 = 7.08
Answer:
n=2
Step-by-step explanation:
Answer:
The answer is n=2.
Step-by-step explanation:
First, combine like terms, so the problem then looks like 3.6n-0.12=7.08.
Then, add 0.12 to both sides, which now looks like 3.6n=7.2.
Finally, divide both sides of the equation by 3.6, and the final answer is n=2.
A bracelet is now reduced to £600. This is 80% of the original price.
a) Work out the original price of the bracelet.
Answer:
the original is 1080.
Step-by-step explanation:
80%×600=480
480+600=1080
PLS PLS HELP FIND THE VOLUME!!! PLS PLS I GIVE U ALL MY POINTS
Answer:
1232
Step-by-step explanation:
Step 1: 8x14 to find the base
Step 2: Base times Height
Good Luck! And have a great day!
Answer:
[tex]410\frac{2}{3}[/tex] cm³
Step-by-step explanation:
8 × 4 × 11 = 1232 cm³
1232 cm³ ÷ 3
[tex]410\frac{2}{3}[/tex] cm³
Given the graph below, which of the answer choices is closest to the actual distance between point A and point C?
65
33
the square root of 65
the square root of 33
Answer:
[tex]\sqrt{65}[/tex]
Step-by-step explanation:
d = √(5+2)²+(0+4)²
d = √7² + 4²
d = √49+16
d = √65
Answer:
square root of 65
Step-by-step explanation:
So remember, the pythagreons theorm is A^2+B^2=C^2.
A and B are the side lengths, and C is the long, sloped line.
Lets count the side lengths, and plug them into the formula.
Line CB is 4, and counting AB, its 7. So lets plug them in:
4^2+7^2=C^2
Square the values(except for the missing one):
16+49=C^2
=
65=c^2
Now, we need to get C on its own.
To do this, we must get the square root of both sides:
[tex]\sqrt{65} =\sqrt{C^2}[/tex]
=
[tex]\sqrt{65} =C[/tex]
So C equals the square root of 65!
This is C, the third answer down(the square root of 65).
Hope this helps! :)
Please help me on this.
A cone has a height of 10 yards and a diameter of 8 yards. What is the volume?
Answer: 167.55 units cubed
Step-by-step explanation:
To find this, you must know the formula for a cone. The area is A=πr(r+h2+r2). We can get that the A=π4(4+102+(4)2). We got this from plugging in the numbers. The radius is equal to half the diameter, so the radius is 4. The answer is 167.55 units cubed.
Triangle ABC is shown below, with the angle measures as marked.
B
(3n-10)
(n+20)
no
A
Use the drop-down menus to select the measures for ZA and LB.
Answer:
picture of the triangle
I need help with this question
Answer:
15.28
Step-by-step explanation:
first we divide 96 by 3.14 to get the diameter
96÷3.14=30.57
now we have the diameter we divide by two to get the radius
30.57÷2=15.28
15.28 is your radius
Evaluate the expression below when x = 4 and y = 12.
5x2−3y
Answer:
Step-by-step explanation:
Put x = 4, y = -5 and z = 2 to the expression 3x² - 4y + xz and use PEMDAS:
3(4)² - 4(-5) + (4)(2)
= 3(16) + 20 + 8
= 48 + 20 + 8
= 76
Answer:
44
Step-by-step explanation:
Alright let’s do this!
Expression: 5x^2 - 3y and x = 4, y = 12
First let’s plug in the missing values of x and y!
5(4)^2 - 3(12)
Then, get rid of exponent! From this point forward follow PEMDAS
5(16) - 3(12)
80 - 36 =
44
And there you go! Hope I helped, Good Luck! :)
A bag of marbles contains 4 red
marbles, 5 green marbles, and 3
blue marboles. Karen pulls two
marbles out one after the other
without replacing the first marble,
what is the probability the first one
is red and the second is blue?
Will mark brainliest if provided fraction and right answer.
Answer:
Probably 50% that she pulls out a red one because there are more red marbles than green and blue. And probably about 10-15% that she pulls out a blue because that is the least amount of marbles.
Step-by-step explanation:
What is the complementary angle of:
- 6 degrees
- 21 degrees
Answer:
The complementary angle of
-6 degrees is 84
-21 degrees is 69
Step-by-step explanation:
to solve this question complementary angles sum up to 90 degrees, when 2 angles come together to form a 90 degree right angles they are complementary.
90-6= (84)
90-21=(69)
Hope my work helped, good luck on your work and have a great day :)
The box plot on this page shows the total amount of time, in minutes, the students of a class surf the Internet every day:
Part A: List two pieces of information that are provided by the graph and one piece of information that is not provided by the graph. (4 points)
Part B: Calculate the interquartile range of the data, and explain in a sentence or two what it represents. (4 points)
Part C: Explain what affect, if any, there will be if an outlier is present. (2 points)
Answer:
A)-there is a time going from 35 to 60
-25 minutes
B) 75
C) ?
Step-by-step explanation:
i hope this helps :)
Sally purchases 3 bags of Doritos for $3.96. What is the unit rate
Answer:
the unit rate is 1.32 per bag
Step-by-step explanation:
divide 3.96 by 3
Answer:
The unit rate or the cost of one bag of Doritos is 1.32
Step-by-step explanation:
3.96 ÷ 3 = 1.32
please help me asap thanks!! <3
if Gordon types 2,976 words in 48 minutes. what is the unit rate.
A movie theater owner made this box plot to represent attendance at the matinee movie last month.
Without seeing the values, what conclusions can you make about whether attendance was mostly high or low at the matinee movie last month?
Which hill described in the table is the steepest and why?
Street
Horizontal Distance (ft)
Vertical Rise of Street (ft)
Dixie Hill
60
20
Bell Hill
60
40
Liberty Hill
60
30
A. Bell Hill; it rises two-thirds foot for every 1 foot of horizontal travel.
B. Dixie Hill; it rises 1 foot for every 3 feet of horizontal travel.
C. Bell Hill; it rises 3 feet for every 2 feet of horizontal travel.
D. Liberty Hill; it rises 2 feet for every 1 foot of horizontal travel.
Answer:
C
Step-by-step explanation:
I think it is C. Sorry if I'm wrong.
SCIENCE QUESTION BUT I HAD TO PUT IN MATH - I WILL GIVE BRAINLIEST TO CORRECT ANSWER
Light energy from the Sun is used by a plant to perform photosynthesis. Which structure of the plant helps it to absorb this energy?
A. chloroplast
B. root
C. stamen
D. xylem
PLEASE HELP ME!!!! I WILL MARK THE BRIANIEST!!!!!! PLEASE HELP ME!!!! PLEASE HELP!!! PLEASE!!!!!!!!!!
Answer:y=-14 brainlyest plz
Step-by-step explanation:
Jose set a goal of saving at least $200 in a savings account. He currently has $60 in the
account. If he invests $5 of his weekly allowance per week, how many weeks will it
take him to reach his goal?
Answer:
28 weeks
Step-by-step explanation:
subtract 60 from 200 to find the amount of money Jose needs to invest. Then, divide by 5 to find the number of weeks it will take him.
There is a bag of 50 marbles. Andre takes out a marble, records its color, and puts it back in the bag. In 4 trails, he gets a green marble time. Jada takes out a marble, records its color, and puts it back in the bag. In 12 trials, she gets a green marble 5 times. Noah takes out a marble, records its color, and puts it back in the bag. In 9 trials, he gets a green marble 3 times. Estimate the probability of getting a green marble from this bag. Explain your reasoning.
Answer:
1/4 or 25%
Step-by-step explanation:
Answer:
25%
Step-by-step explanation:
Victor wants to conduct a survey to find how much time the students of his school spent playing football. Which of the following is an appropriate statistical question for this survey?
- Who plays football on weekends?
- Who plays football the most on Mondays?
- How many hours per week do you play football?
- How many students play football for one hour every day?
Answer:
How many hours per week do you play football?
Step-by-step explanation:
help me out! Write an equation for line p :
Answer:
x = -4
Step-by-step explanation:
Since P is a straight vertical line, We know that the answer has to be about the x axis
Therefore, since the line is placed on -4 the equation will be
x = -4
Hope this helped :D
Ella conducted a survey to find out the amount of time high schoolers spend surfing the Internet. From the data collected, the range of time spent was 1 hour. What does this range say about the data?
- All the students surveyed spend exactly 1 hour surfing the Internet.
- All the students surveyed spend an average of 1 hour surfing the Internet.
- The difference between the greatest amount of time and the least amount of time spent surfing the Internet is 1 hour.
- The quotient between the greatest amount of time and the least amount of time spent surfing the Internet is 1 hour.
Answer:
I think its c...I hope so I'm taking the test rn
Step-by-step explanation:
Answer:
The answer you're looking for would be C. The difference between the greatest amount of time and the least amount of time spent surfing the Internet is 1 hour.
Step-by-step explanation:
I did the FLVS test, it was correct.
HELP ASAP I NEED HELP WITH MY MATH HW
Answer:
Step-by-step explanation:
I uploaded a picture hope it helps
Answer:
Question 8 is 21, Question 9 is 20.
Step-by-step explanation:
Ratios are very easy if you can find a relationship between them. For #8, to get from 2 to 6 is to multiply 3. Then we multiply 7 and 3 to equal 21. This will be equivalent ratios. The next one is the same thing, to get from 6 to 24, we must multiply 4. We know that to make it equivalent we must multiply 5 with 4 which equals 20. Also we can do this with proportions 2/7 = 6/x. We cross multiply which equals 2x=42. We solve it like an algebraic equation which equals 21. We set up proportions for 5/6 = x/24. We cross multiply which equals 6x = 120. We solve this like an algebraic equation which equals to 20.
help please/ no links if you send links i will report you
Answer:
Step-by-step explanation:
1:dang you got a lot of tabs open
2:charge your device
3:yo you need to put more info down you just send an image saying a thing with no explaination. and don't send links. so dont get upset when noone can answer your Q
4:im not trying to be mean
5:i hope you find your answer
Between which two numbers does √11 lie on a number line?
A 10 and 11
B 3 and 4
C 5 and 6
D 4 and 5
Answer:
B
Step-by-step explanation:
(can i have brainliest?)