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
Trava [24]
3 years ago
11

What is the a3+b3 equal to? verify by an activity

Mathematics
1 answer:
uranmaximum [27]3 years ago
3 0
a³ + b³ = ( a + b ) ( a² - a b + b³ )
For example:
a = 1, b = 2
a³ + b³ = 1³ + 2³ = 1 + 8 = 9
( a + b ) ( a² - a b + b² ) = ( 1 + 2 ) ( 1² - 1 * 2 + 2² ) =
= 3 * 3 = 3
The formula is true. 
You might be interested in
A bakery sells 6350 muffins in 2010. The bakery sells 8310 muffins in 2015. Write a linear model that represents the number $y$
Korvikt [17]

Answer:

y = 392x + 6350

Step-by-step explanation:

Here, we calculate the average rate of change in the number of muffins sold between the two years

Mathematically that will be the difference in number of muffins divided by the number of years

We have this as;

(8310-6350)/(2015-2010)

= 392

an average of 392 muffins were sold in a year

The general form of the equation of a straight line is;

y = mx + c

we have m as 392

so;

y = 392x + c

To get c, we make a substitution

2015 is 5 years after 2010, so x will be 5 and y will still be 8310

so;

8310 = 392(5) + c

c = 8310 - 2960

c = 6350

So the equation is;

y = 392x + 6350

8 0
3 years ago
Use the order of operations to solve the problem. 3 x 2 + 7​
IceJOKER [234]

Answer:

13

Step-by-step explanation:

3 x 2 + 7

6 + 7  (Do multiplication first)

13 (Then add from left to right)

4 0
3 years ago
82 tens is the same as what?
Feliz [49]
82 tens in the same thing as 820 because if you multiply 82 by 10 you get 820
8 0
3 years ago
Read 2 more answers
The Holt family is purchasing 4 cell phones. Store A sells 3 cell phones that cost $165 each, which includes a fourth phone for
Scilla [17]

Answer:Store A

Step-by-step explanation:

Given

Store A sells 3 cells phones that cost $165 each and offer 4 th one free

i.e. Effective cost of each cell phone is  \frac{165\times 3}{4}=\$ 123.75

Store B sells each cell phone at \$ 135 each

clearly, store A provides a better deal than B because the cost of 4 cell phones is less for Store A i.e.

\Rightarrow 165\times3

6 0
3 years ago
Which ordered pair is in the solution set of the system of linear inequalities?
enyata [817]

Answer:

Step-by-step explanation:

y>3/2 x-1

y<3/2 x-1

graphs do not intersect any point.

so no solution.

8 0
3 years ago
Other questions:
  • A rectangle has a length of 5 yards and width of 3 yards. What is the perimeter
    6·1 answer
  • Can someone answer part A and part B?
    5·1 answer
  • Find the equation, (f(x) = a(x - h)2 + k), for a parabola containing point (2, -1) and having (4, -3) as a vertex. What is the s
    5·1 answer
  • Trees in urban areas help keep air fresh by absorbing carbon dioxide. A city has $2100 to spend on planting spruce and maple tre
    10·1 answer
  • How to write 12.25 as a mixed number
    15·2 answers
  • What is the solution set of the quadratic inequality 6x? + 1 0?
    10·1 answer
  • Choose which of the following functions has a domain of all real numbers. Select all that apply. y = x, y = 2x^2 + x - 3, y = 3x
    7·1 answer
  • What is 25% of 140? 14 30 35 40
    5·2 answers
  • Write the equation of the line in slope-intercept form
    8·1 answer
  • Find the area of the figure. All intersecting sides meet at right angles. a. 1,440 m2 c. 76 m2 b. 106 m2 d. 46 m2
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!