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
Furkat [3]
3 years ago
9

When adding two numbers, such as 123 and 423, care is taken to first line them up and then add like digits. How does expanding t

his expression to [(1 × 10^2 ) + (2 × 10^1 ) + (3 × 10^0 )] + [(4 × 10^2 ) + (2 × 10^1 ) + (3 × 10^0 )] make the operation more like a polynomial addition problem?
Mathematics
1 answer:
Ivanshal [37]3 years ago
4 0
Since a polynomial is where we have like terms such as (1 x 10²) and (4 x 10²), we can add these up using the distributive property to get (5 x 10²) but still keep the 10². For example, it's similar to if we had 2x²+3x²=5x². The x² is still there, but we add up the 2 and 3. Similarly, we can add these up for 10^1 and 10^0
You might be interested in
Abby counts 12 large boxes and 18 small boxes of pencils in the supply cabinet. Each large box contains 144 pencils . Each small
BigorU [14]

Answer:

2,160 pencils

Step-by-step explanation:

Large boxes = 12

Small boxes = 18

Each large box contains 144 pencils . Each small box contains 24 pencils

Total pencil in large boxes = Total large boxes × number of pencils per box

= 12 × 144

= 1,728 pencils

Total pencil in small boxes = Total small boxes × number of pencils per box

= 18 × 24

= 432 pencils

Estimate the total number of of pencils

Total number of pencils = total pencils in large boxes + total pencil in small boxes

= 1,728 pencils + 432 pencils

= 2,160 pencils

It is better to have an underestimate than an overestimate so that you won't disappoint your buyers when they request for a quantity of supply. If it is underestimated; you can meet demand, if it is overestimated; you can't meet demand

3 0
3 years ago
Helppp please :(((((
DedPeter [7]

Answer:

Step-by-step explanation:

6 0
3 years ago
Plane A is descending toward the local airport, and plane B is ascending from the same airport. Plane A is descending at a rate
Bas_tet [7]

Answer: 2 minutes

Step-by-step explanation:

Given the following :

Plane A's descent :

y = -2,500x + 14,000

Plane B's Ascent :

y = 4,000x + 1,000

where y = altitude x = minute

Time to be at the same altitude :

Being at the same altitude means ;

Plane A's descent = Plane B's Ascent

-2,500x + 14,000 = 4,000x + 1,000

-2500x - 4000x = 1000 - 14000

-6500x = - 13000

x = 13000 / 6500

x = 2

x = 2minutes.

5 0
3 years ago
Caiden wants to use the distributive property to find the value of 28⋅19+28⋅6528·19+28·65. Which expression can he use?
MakcuM [25]
28 times 28 times (19+65)

4 0
3 years ago
1. Steven delivers 56 newspapers every day of the week except Sunday. How
Dvinal [7]

Answer: 336 papers

Step-by-step explanation:

A week except Sunday = 6 days

56 newspapers * 6 days = 336 newspapers in all

3 0
3 years ago
Read 2 more answers
Other questions:
  • Solve using a proportion. Round to the nearest hundredth.
    14·1 answer
  • Help, please. I’m confused!
    9·1 answer
  • Solve the equation.<br> 8 – 2x = -8х + 14<br> A) x= -1<br> B) x= -3/5<br> C) x= 3/5<br> D) x= 1
    15·2 answers
  • If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen
    13·1 answer
  • The picture shows a feeding trough that is shaped like a right prism.
    10·1 answer
  • Identify which Quadratic Form this Function is in.<br> y = 4(x + 2) (x - 6)
    12·1 answer
  • Find the measurement indicated in each parallelogram
    9·2 answers
  • F(x)=x^2+5x what are the real zeroes of this function?
    7·1 answer
  • Exchange rates help you to know ____.
    5·1 answer
  • A pound of chocolate costs 6 dollars. Dante buys p pounds. Write an equation to represent the total cost c that Dante pays.​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!