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
Ket [755]
3 years ago
11

The average human body contains about 40 L of water. What is the total amount of water contained in the 6.4 billion people in th

e world? Show each step in your solution. Express your answer in scientific notation.
Mathematics
1 answer:
vesna_86 [32]3 years ago
7 0

Answer:

2.56 * 10^11 L

Step-by-step explanation:

1 body has 40 L

Thus, the amount in 6.4 billion would be;

40 * 6.4 * 10^9

= 256 * 10^9

= 2.56 * 10^2 * 10^9

= 2.56 * 10^11 L

You might be interested in
Is 2/3 an improper fraction or a mixed number
Drupady [299]
It's neither. 
If it were to be an improper fraction, it would be something like 3/2 instead of 2/3.
If it were to be a mixed number, it would look like 1 1/3.
7 0
3 years ago
Read 2 more answers
It cost Alexandra $9.90 to send 198 text messages. How many text messages did she send if she spent $2.35?
tatiyna

Answer:

77

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Why is the vertex of vertex form y=a(x-h)^2+k (h,k) rather than (-h,k)? If that was y=2(x-5)^2+6, the vertex would be at (5,6) w
Sindrei [870]

9514 1404 393

Answer:

  (5, 6) is (h, k)

Step-by-step explanation:

Vertex form is an instance of the transformation of parent function f(x) = x². It is vertically scaled by a factor of 'a', and translated so the vertex is point (h, k). That is, the transformed vertex is h units right and k units up from that of the parent function (0, 0).

Parent:

  f(x) = x^2

Transformed:

  f(x) = a(x -h)^2 +k

__

When you compare the form to your specific instance, you need to pay attention to what it is that you're comparing. As the attachment shows, ...

  • a = 2
  • -h = -5   ⇒   h = 5
  • k = 6

Hence the vertex is (h, k) = (5, 6). The second attachment shows this on a graph.

7 0
3 years ago
Solve the equation. 2x squared-3x+1=0
natali 33 [55]

2x^2-3x+1=0\\\\2x^2-2x-x+1=0\\\\2x(x-1)-1(x-1)=0\\\\(x-1)(2x-1)=0\iff x-1=0\ \vee\ 2x-1=0\ \ \ \ |+1\\\\x=1\ \vee\ 2x=1\ \ \ |:2\\\\\boxed{x=1\ \vee\ x=0.5}

4 0
3 years ago
What is the sum of the geometric series 2^0 + 2^1 + 2^2 + 2^3 + 2^3 + 2^4 + … + 2^9?
mars1129 [50]
The nth term is
an=a1(r)^(n-1)
an=1(2)^(n-1)
a1=1
r=2

the sum of a geometric seequence is
S_{n}=\frac{a_{1}(1-r^{n})}{1-r}
a1=1
r=2
we want to find S_{10} (since we minus 1, the highest exponet is 9 so add 1 to make it correct)

S_{10}=\frac{1(1-2^{10})}{1-2}
S_{10}=\frac{(1-1024}{-1}
S_{10}=\frac{(-1023}{-1}
S_{10}=1023

3 0
3 years ago
Read 2 more answers
Other questions:
  • Drag the tiles to the correct boxes to complete the pairs.
    14·1 answer
  • A 45 foot ladder is used to clean the
    6·2 answers
  • A newsletter publisher believes that above 41A% of their readers own a personal computer. Is there sufficient evidence at the 0.
    10·1 answer
  • Evaluate the expression for the given values. (12x+5y)/3z, where x = 12, y = 6, and z = 4. (write answer in decimal form)
    12·1 answer
  • PLEASE HELP!!!!!!
    11·2 answers
  • The drama club is selling tickets to their annual talent show. They sold adult tickets (a) for $12.50 each and student tickets (
    13·1 answer
  • Which is the quadratic equation in standard form which has roots of 7 and 10?
    15·1 answer
  • What is the answer to 5x6+8+9-5 Pls help i dont remember pemdas mean
    8·2 answers
  • Differentiate the following with respect to x<br><br>irrelevant answers will be reported​
    12·1 answer
  • What is the perimeter of the polygon shown below?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!