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
maks197457 [2]
3 years ago
7

Choose two values, a and b, each between 8 and 15. Show how to use the identity a^3+b^3=(a+b)(a^2-ab+b^2) to calculate the sum o

f the cubes of your numbers without using a calculator
I really need help with this
Mathematics
1 answer:
qaws [65]3 years ago
5 0

Answer:

Step-by-step explanation:

a = 8

b  = 10

a^3 =8^3 = 512

b^3= 10^3 =1000

a^3 + b^3 = 1512

a^2 = 64

-ab = - 80

b^2 = 100

a + b=18

(a + b) (64 -  80+ 100)

18 * (84)

1512'

You might be interested in
Plzzzzzzzzz help meeee
Rashid [163]
Table a is 3 b is 2 and c is 1
7 0
3 years ago
You are dealt one card from a satndard 52-card deck. Find the probability of being dealt an ace or a 7
ruslelena [56]

Answer:

2/13    or  15.38%

Step-by-step explanation:

Number of Aces in a deck = 4

Number of 7s in a deck = 4

Number of cards in a deck = 52

Probability of A or 7 = (4 Aces + 4 Sevens) / 52 cards                                          8 cards / 52 cards

This simplifies to                           2/13    or  15.38%

3 0
2 years ago
Help please and don't delete the question
Ahat [919]

Answer:

x = 2

Step-by-step explanation:

8(4-x) = 7x + 2

1) Distribute : 32 - 8x = 7x + 2

2) Subtract 32 : -8x = 7x - 30

3) Subtract 7x : -15x = -30

4) Divide 15 : x = 2 :)

4 0
3 years ago
Read 2 more answers
Find the value of x .<br><br> x/4 = 15/20<br><br> x=
OLga [1]

Answer:

its 3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
noah was asked to compute the product of two numbers. he misread the problem and entered the sum of the two numbers instead. luc
Vikki [24]

The other number is 1.25 .

proved to us , the first number is 5 .

let the other number is 'x' .

therefore we are having ,

the product of these numbers = 5x

the sum of these numbers = 5 + x

Also , the product of these two numbers is equal to the sum of these two numbers

so ,  5x = 5 +x

       4x = 5

        x = 5/4 = 1.25

so the second number is 1.25

verification :

product of the numbers = 5 x 1.25 = 6.25

sum of the numbers = 5 + 1.25 = 6.25

Hence the result is correct

Therefore the other number is 1.25.

learn more about misread problems here :

brainly.com/question/14369018

#SPJ4

8 0
1 year ago
Other questions:
  • PLEASE HELP ASAP!!! :)<br><br>Look AT THE PICTURE PLS HURRY
    14·1 answer
  • Statistics question, please help.
    14·2 answers
  • Write the prime factorization of 48. use exponents when appropriate and order the factors from least to greatest
    8·1 answer
  • What is the additive inverse ( opposite ) of -50​
    6·1 answer
  • Here are three number cards.
    13·1 answer
  • Please show work any help would be fine Thanks
    11·2 answers
  • Which of the following ordered pairs represents the x-intercept of the equation y = 2x - 8?
    11·2 answers
  • Joaquin saves 6 dollars for every 20 dollars he earns. How much would he save if he earns 240 dollars?
    15·1 answer
  • A town official claims that the average vehicle in their area sells for more than the 40th percentile of your data set. Using th
    12·1 answer
  • The circle graph shows how Emily spent one hour using her iPhone. How many minutes did Emily spend on research?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!