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
Phantasy [73]
3 years ago
7

How does 4 digit addends have a 5 digit sum

Mathematics
1 answer:
denpristay [2]3 years ago
3 0
A 4 digit addends could have a 5 digit sum because of the rule of regrouping.
Regrouping is a situation where carrying and borrowing is involves. So let’s have an example

  8999
<span>+5678
</span>14677

so in this example, we added 8999 to 5678.
9+8 = 17, so we bring down 7 and carry 1
9 + 7 = 16 + 1 = 17 , so again we bring down 7 carry 1
9 + 6 = 15 + 1 = 16, bring down 6 carry 1
8+5 = 13 + 1 =14, since this is our last number, bring down 14..
=> 14, 677
You might be interested in
1/2 •x=1/2•7 what is the property
AleksandrR [38]
Distributive property
3 0
3 years ago
Let f(x)=x2−2x−4 . What is the average rate of change for the quadratic function from x=−1 to x = 4?
goblinko [34]

Answer:

The average rate of change for f(x) from x=−1 to x = 4 is, 1

Step-by-step explanation:

Average rate A(x) of change for a function f(x) over [a, b] is given by:

A(x) = \frac{f(b)-f(a)}{b-a}

As per the statement:

f(x) = x^2-2x-4

we have to find the average rate of change from x = -1 to x = 4

At x = -1

f(-1) = (-1)^2-2(-1)-4 = 1+2-4 = -1

and

at x = 4

f(4) = (4)^2-2(4)-4 = 16-8-4 = 4

Substitute these in [1] we have;

A(x) = \frac{f(4)-f(-1)}{4-(-1)}

⇒A(x) = \frac{4-(-1)}{4+1}

⇒A(x) = \frac{5}{5}

Simplify:

A(x) = 1

Therefore, the average rate of change for f(x) from x=−1 to x = 4 is, 1

4 0
3 years ago
Read 2 more answers
2. Consider the line segment below.
PtichkaEL [24]
If AB is 128 centimeters long what is xe
3 0
2 years ago
A triangle with sides lengths of 17, 21, and 10. is this a right triangle?
USPshnik [31]
Use Pythagorean thrm
17^2+10^2=21^2
289+100=441
389≠441
This is not a right triangle
3 0
3 years ago
The price of a stock dropped 20% in one month the following month it’s price increased by 20% is the stock above or below it’s s
MArishka [77]
The price of the stock is below its starting price because the price will decrease before it increases
5 0
3 years ago
Other questions:
  • The length of a rectangle is 3 inches more than it width.The perimeter of the rectangle is 34 inches. The length of the rectangl
    12·1 answer
  • A clock face has a circumference of 39.88 cm. Find the diameter of the clock. Use 3.14 as an approximation of pie
    6·1 answer
  • The average temperature in Washington, DC is 67 degrees Fahrenheit. Use the formula above and enter the temperature, rounded to
    15·1 answer
  • Please help quick!!!!!!!!!!!!1
    11·1 answer
  • Find the length of the third side to the nearest thenth
    7·1 answer
  • If 1/2 gallon of paint covers 1/8 of a wall, then how many quarts of paint are needed for the entire wall?
    15·1 answer
  • After 6 matches a volley ball team has an average score of 2.5 goals.How many goals has the team scored
    5·1 answer
  • Which choice is a correct congruence statement for the triangles?
    15·1 answer
  • Find the cost price of an article sold at $360 with a profit of 20%.
    10·1 answer
  • 5. Determine the area of the square that would be attached to the hypotenuse of each right triangle. a) 17 cm 26 cm m ^ 2 + 15 ^
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!