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
GREYUIT [131]
4 years ago
11

Expand and simplify the following expression:

){3}" alt="(a-2b){3}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
bazaltina [42]4 years ago
7 0
(x-y)^3=x^3-3x^2y+3xy^2-y^3\\--------------------------\\(a-2b)^3=a^3-3a^2\cdot2b+3a\cdot(2b)^2-(2b)^3\\\\=a^3-6a^2b+12ab^2-8b^3
You might be interested in
There were 135 cars in a rally each driver paid a $25 fee to participate in the rally how much money did the drivers play in all
charle [14.2K]

Total numbers of cars present in the rally is  135

Amount paid by a single driver to participate in the rally = $25

Total amount generated by the participation fee from each driver is equal to the sum of amount paid by all the 135 cars.

Since we cannot add $25 for 135 times, we use multiplication operation.

Total amount = amount paid by one single driver multiplied by the total number of cars.

Total amount = 135 * 25 = 3375 $ .... Answer


7 0
3 years ago
Помогите, пожалуйста
Cerrena [4.2K]

1.

6 - 2х² = 6 - 2(-8)² = 6 - 2(64) = 6 - 128 = -122

2.

\displaystyle\tt a^{11}\cdot a^{14}=a^{11+14}=a^{25}\\\\a^{18}:a^{14}=a^{18-14}=a^4\\\\(a^5)^4=a^{5\cdot4}=a^{20}\\\\(5x)^4=5^4\cdot x^4=625x^4\\\\\bigg(\frac{a}{3}\bigg)^6=\frac{a^6}{3^6}=\frac{a^6}{729}

3.

\displaystyle\tt \frac{14^{16}\cdot14^{6}}{14^{21}}=14^{16+6-21}=14^1=14\\\\\\ \frac{7^{8}\cdot7^{5}}{7^{11}}=7^{8+5-11}=7^2=49\\\\\\ (12^2-11^2)^2+(6^5+2^9)^0=(144-121)^2+1=23^2+1=529+1=530

4.

\displaystyle\tt 3^{8x}=81\\\\3^{8x}=3^4\\\\8x=4\\\\x=\frac{4}{8}=\frac{1}{2}=0.5

5.

\displaystyle\tt \frac{64^{6}}{4^{4}\cdot4^{16}}=\frac{(4^3)^{6}}{4^{4+16}}=\frac{4^{3\cdot6}}{4^{20}}=\frac{4^{18}}{4^{20}}=\frac{1}{4^{2}}=\frac{1}{16}

5 0
4 years ago
5 × 10/12 what is the product?
joja [24]

Answer:

Step-by-step explanation:

10 divided by 12= 0.83

0.83 times 5= 4.16 or  26/625

3 0
4 years ago
2 cups of oats
Marrrta [24]

Answer:

=8 oats to 1 flaxseed

= 4 oats to 1 quinoa

= 3 oats to 1 soy protein

Step-by-step explanation:

given

2 cups of oats  

1/4 cup of flaxseed  

1/2 cup of quinoa

2/3cup of soy protein

the ratios for the amount of oats to the amount of each of other grain =

2 cups of oats   : 1/4 cup of flaxseed  

=2 : 1/4

=2 / 0.25

=8 : 1

= 8 oats to 1 flaxseed

2 cups of oats   : 1/2 cup of quinoa

= 2 : 1/2

= 2 : 0.5

= 4 : 1

= 4 oats to 1 quinoa

2 cups of oats   : 2/3cup of soy protein

= 2 : 2/3

= 2 : 0.667

= 3 : 1

= 3 oats to 1 soy protein

8 0
4 years ago
How do you do 7-12? How do you do 13-18?
eimsori [14]
7-12 is like a negative number so it will be -5. And 13-18 would be -5 also. 
7 0
4 years ago
Read 2 more answers
Other questions:
  • I know that is my answer but how do I work it out on notebook paper
    14·2 answers
  • Petra jogs 3 miles in 27 min. At this rate, how long would it take her to jog 5 miles
    6·2 answers
  • If x=34y and y=16, what is the value of 3x-1?
    6·1 answer
  • What’s the range of these temperatures -15, -6, 22, 10, -11
    14·1 answer
  • Am I correct? Will give brainliest
    10·1 answer
  • What is the rate of change?<br><br> a. -2<br> b. -1/2<br> c. 1/2<br> d. 2
    12·2 answers
  • I WILL GIVE U BRAINLIEST AND THANKS AND 5 STARS
    8·2 answers
  • Solve for X <br><br> PLEASE HELP DUE IN 10 MINS
    6·1 answer
  • I need help and I’ll give 100 points
    6·1 answer
  • I suck at math ik but i need anyones help please
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!