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
uysha [10]
3 years ago
6

What do you notice? Why did does this happen

Mathematics
1 answer:
tiny-mole [99]3 years ago
8 0

Answer:

The thing you should notice is that when we multiply a number by 10^n

(where n is the number of zeros that the number has) we move the decimal point on the first number n times to the right.

For example, if we have the number:

7.231 and we multiply it by 100 (there are 2 zeros) then the decimal point is moved two times to the right:

7.231*100 = 723.1

This happens because the base of our math is 10 (the decimal system).

You might be interested in
The count in a bacteria culture was 800 after 15 minutes and 1200 after 40 minutes. Assuming the count grows exponentially,
Maslowich

Answer:1) bacteria size = b(initial) * e^(r * t)  

initial size = 300  

final size = 1600.

 

Substituting the values into the main equation:

1600 = 300 * e^(r * 35 - 20)  

solving for 'r'.

1600 = 300 * e^(r * 15)  

1600/300 = e^(r * 15)  

taking natural log on both sides to eliminate the power

ln(16/3) = ln[e^(r * 15)]  

ln(16/3) = r * 15  

r  = ln(16/3) / 15

  = 0.11159843

  = 11.16%  

To find the initial bacteria size,  

Given: t = 20  

300 = b * e^(0.1116 * 20)  

Solving for b:

300 = b * e^2.232  

b = 300/e^2.232  

b = 32

Step-by-step explanation:

3 0
3 years ago
A runner ran 3000 m in exactly 8 minutes. What was his average speed in meters per second?
Scilla [17]
8 minutes has 8*60 or 480 seconds. If we divide 3000 meters by 480 seconds, we get an average speed of 6.25 m/s.

Answer is D.
7 0
3 years ago
Find the value of c that makes t – 22t+c a perfect square trinomial.
Verizon [17]

Answer:

c = 121

Step-by-step explanation:

Given

t² - 22t

To complete the square

add ( half the coefficient of the t- term )² to t² - 22t

= t² + 2(- 11)t + (- 11)²

= t² - 22t + 121

with c = 121

Thus

t² - 22t + 121 = (t - 11)²

7 0
3 years ago
For the given kite, find x.<br> Show all the work
STALIN [3.7K]

Answer:

x=4

Step-by-step explanation:

4x+1=17

4x=16

x=4

6x-3=21

6x=24

x=4

because GL and GT are congruent.

LO and OT are congruent.

8 0
3 years ago
What percent of 40 is 80?
antiseptic1488 [7]

Answer:

200% i think

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Carly bought a new house for $125,000. The value of the house appreciates approximately 3.5% each year. What will be the value o
    7·2 answers
  • Determine whether the given ordered pair is a solution of the equation (0,5); 5x-3y=15
    9·1 answer
  • What is the volume of the triangular prism? Round to the nearest tenth.
    13·2 answers
  • A 2-pack of board games cost $7.18. What’s the unit price
    15·2 answers
  • A line passes through the points (3, −1) and (−5, 3)
    11·1 answer
  • The intensity of the sound of a subway train was measured at 108 dB. Find the intensity in W/m2. (Give your answer in scientific
    5·1 answer
  • Find the length of the hypotenuse of a right triangle whose legs are 3 and sqrt 2
    13·2 answers
  • Are these transformations right and would there be any others?
    13·1 answer
  • Please help!! Question is shown in picture <br><br> Is it Step C or Step B??
    6·1 answer
  • What's the surface area ratio &amp; the volume ratio??<br><br> please help me ASAP!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!