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
Dmitry [639]
3 years ago
9

The Empire State Building weighs about 7.3×108pounds. The One World Trade Center building weighs about 88,200,000 pounds. What i

s the total weight, in pounds, of these two buildings? Expressing your answer in scientific notation in the form a×10b, what are the values of a and b?
Mathematics
1 answer:
In-s [12.5K]3 years ago
4 0

Answer:

8.182X10^8 $pounds

a=8.182 and b=8

Step-by-step explanation:

Weight of the Empire State Building =7.3X 10^8 pounds.

Weight of the One World Trade Center building= 88,200,000 pounds.

=8.82 X 10^7

The addition of the two:

=7.3X 10^8+8.82 X 10^7\\$To make it easier to add, express both as powers of 8\\=7.3X 10^8+0.882 X 10^8\\=(7.3+0.882)X10^8\\=8.182X10^8 $ pounds

Comparing with the form: aX10^b

a=8.182 and b=8

You might be interested in
Find the rate of change of this line
GuDViN [60]
The slope/rate of change is m=2
6 0
2 years ago
Read 2 more answers
When two objects reach the same time-space coordinates, they generally collide with each other. How is this different from what
nikklg [1K]

Answer:

Waves superimpose upon each other when they collide, while objects do not

Step-by-step explanation:

The main difference between the collision of waves and the collision of objects is simply the superposition principle.

When waves collide, they do not do so in the same way objects do. The superposition principle explains that waves can either collide in a constructive or destructive manner.

Case A: Waves colliding in a constructive manner

When waves collide in a constructive manner, this means that they are in phase, in simpler terms, it means that they have the same shape as they move through space-time. Constructive collision leads to a formation of a bigger wave with a higher amplitude. This is how stereo speakers operate. They produce louder sounds by releasing the same audio waves, causing them to superimpose upon each other.

Case B: Waves colliding in a destructive manner:

When waves are out of phase(i.e do not have the same shape as they move through space-time) and they collide, they try to cancel each other out, leading to a new wave with a weaker amplitude. This is how noise-cancelling headphones work. They emit an equal and opposite wave sound to the noise around your ears, thus cancelling it out.

4 0
3 years ago
What is 60,978 in expanded form
lana66690 [7]

Expanded Notation Form: 60,978= 60,000 +0 +900 +70 +8 

Expanded Factors Form:  60,978= 6 × 10,000 +0 × 1,000 +9 × 100 +7 × 10 +8 × 1 

Expanded Exponential Form: 60,978 = 6 × 104+0 × 103+9 × 102+7 × 101+8 × 100

Word Form:60,978 =sixty thousand nine hundred seventy-eight

7 0
2 years ago
it took 8 hours for karl and lou to finish a project for science class together. if karl had worked alone on the project it woul
kkurt [141]
It would take 10 hours just like it did for Karl .
4 0
3 years ago
Which system is equivalent to the system shown and could be used to solve the system of equations correctly using the eliminatio
Bumek [7]

Answer:

The solution is (2, -2)

Step-by-step explanation:

In order to solve this, multiply the second equation by -5 and then add through.

5x - 4y = 18

-5x - 15y = 20

------------------

-19y = 38

y = -2

Now that we have the value of y, we can solve for x.

x + 3y = -4

x + 3(-2) = -4

x - 6 = -4

x = 2

5 0
3 years ago
Other questions:
  • Simplify 3/4(3x+6)-1/4(5x-24)
    15·1 answer
  • Guys help plz i need to pass my class
    6·1 answer
  • does anyone know how to solve (and find the domain) a math problem like this: (7^5-x)^6-x = 49 (pls include explanation I have a
    14·1 answer
  • Which of the following phrases are equations
    15·1 answer
  • Please help asap 40 pts
    12·2 answers
  • Using a six sided die the chance of rolling an odd number over 4 is 3/6 is true or false
    7·1 answer
  • Fwam answered 142 questions correctly on his multiple choice science final that had
    7·1 answer
  • Dina started swimming at 3:35 P.M. She swam until 4:20 P.M. How long did Dina swim for?
    6·1 answer
  • An object is moving at a speed of 7100 kilometers per minute. Express this speed in miles per second
    8·1 answer
  • A parabola opening up or down has vertex (0, -2) and passes through (8, -18). Write its
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!