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
Arte-miy333 [17]
3 years ago
6

2. Factorise: a - b - a + b2.square ​

Mathematics
1 answer:
marshall27 [118]3 years ago
7 0
A - a removes both a’s from equation, then you’re left with b + bsquared, since they are unknown values you cannot combine them, even if it is the same letter, you can only add and subtract unknown values with their same letters together.
You might be interested in
How do I answer this
solniwko [45]

Answer:

can you put another screen shot its blurry on my end.

Step-by-step explanation:

4 0
3 years ago
2 eight and eleven hundredths as a decimal
german

Answer:

28.11

Step-by-step explanation:

6 0
3 years ago
Please help on question 12 or 13 as soon as possible
Anna007 [38]

Answer:

to know the summation of angles: (n-2)*180

here (n) represent numbers of sides

12)we have 5 sides (n=5)

(5-2)*180=540

x=540-(105+135+92+87)=121

13)we have 8 sides (n=8)

(8-2)*180=1080

x=1080-(116+158+141+124+136+132+129)=144

I hope it will help

3 0
3 years ago
g natasha is in a class of 30 students that selects 4 leaders. How many ways are there to select the 4 leaders so that natasha i
Papessa [141]

Answer:

<h2>3,654 different ways.</h2>

Step-by-step explanation:

If there are 30 students in a class with natasha in the class and natasha is to select four leaders in the class of which she is already part of the selection, this means there are 3 more leaders needed to be selected among the remaining 29 students (natasha being an exception).

Using the combination formula since we are selecting and combination has to do with selection, If r object are to selected from n pool of objects, this can be done in nCr number of ways.

nCr = n!/(n-r)!r!

Sinca natasha is to select 3 more leaders from the remaining 29students, this can be done in 29C3 number of ways.

29C3 = 29!/(29-3)!3!

29C3 = 29!/(26!)!3!

29C3 = 29*28*27*26!/26!3*2

29C3 = 29*28*27/6

29C3 = 3,654 different ways.

This means that there are 3,654 different ways to select the 4 leaders so that natasha is one of the leaders

5 0
3 years ago
Jamie drives to the dance to pick up his younger brother Mike. Because of the dance's
Vika [28.1K]

Answer:

Because of traffic, she averaged only 15 miles per hour on the way there but ... If the total travel time was 2 hours how long does it take her to drive to ...

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Write the verbal phrase as an algebraic expression/equation: a number m cubed
    7·1 answer
  • The function y=65x...
    15·1 answer
  • URGENT HELP PLS, would be so much appreciated:)))
    9·1 answer
  • What is the partial quotients of 258 divided by 6
    8·2 answers
  • If on a scale drawing 240 feet
    12·2 answers
  • Y ∝ <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7Bx%7D" id="TexFormula1" title="\frac{1}{x}" alt="\frac{1}{x}" align="absmi
    15·1 answer
  • WILL MARK BRAINLIEST PLSS HELPPP.Triangle RST has vertices R(–1, 1), S(3, 1), and T(3, –4). What
    14·1 answer
  • Graph y = 2x + 1<br> Help pleaee
    5·2 answers
  • Please solve this problem for me.
    9·2 answers
  • Which of the statements is true?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!