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
Ray Of Light [21]
3 years ago
13

Factorise 49x²-y² class 8​

Mathematics
2 answers:
kondor19780726 [428]3 years ago
8 0

Answer:

(7x-y)(7x+y)

Step-by-step explanation:

Charra [1.4K]3 years ago
6 0

Answer:

(7x-y)×(7x+y)

Step-by-step explanation:

49x²-y²

7²x²-y²

(7x²)-y²

(7x-y)×(7x+y)

You might be interested in
,please help me solve these 2. problems I am having trouble
Harlamova29_29 [7]
Hi,

1) D

Working :
If the bell rings for 2 weeks straight that means it rings for 14 days.

The bell rings 48 times a day (2 * 24).

The answer is then: 48*14 = 672

2) C

Working:

144 cookies * 8 batches = 864 cookies

864 divided into boxes of 8 = 864 / 8 = 108


4 0
3 years ago
Two boys are running track. They decide to start in the northwest corner and go opposite directions around the rectangular track
Mariulka [41]

= <u>187.3 yards</u>

Step-by-step explanation:

The set-up will represent a triangle whereby the :

  • Width = Height = 150 yards
  • Diagonal = Hypotenuse = 240 yards
  • Length = Base = ?

{a}^{2}  =  {c}^{2}  -  {b}^{2}  \\ {a}^{2} =  {240}^{2}  -  {150}^{2}  \\ {a}^{2} = 57600 - 22500 \\  \sqrt{ {a}^{2} }  =  \sqrt{35100}  \\ a = 187.3yards \: (rounded \: off \: to \: 1dp)

3 0
3 years ago
It takes la’mya 4 hours to knit 2 yards of a blanket . How many yards can she knit in one hour ?
shtirl [24]

Answer:

she can knit 1/2 a yard of a blanket in 1 hour.

So it would look like this

1/2 a yard of blanket

-----

1 hour

It would be, she can knit one half of a yard of blanket in one hour

one half over oner hour

6 0
3 years ago
What is 9 + 2x = -x + 3
Sidana [21]

Answer:

x=-2

Step-by-step explanation:

3 0
3 years ago
Simplify: 2 (x+6) + 8x<br><br> when x = 3
IceJOKER [234]

Answer:42

Step-by-step explanation:

2(3+6)+(8)(3)

=(2)(9)+(8)(3)

=18+(8)(3)

=18+24

=42

leave a like if this helped please

8 0
3 years ago
Other questions:
  • First to answers gets marked brainliest
    14·1 answer
  • The pie chart to the right shows how adults rate their financial shape. suppose 4 people are chosen at random from a group of 12
    9·1 answer
  • Two times a number plus four is 22. What is the number
    5·2 answers
  • PLEASE HELP!!! Solve -(6)^x-1+5=(2/3)^2-x by graphing. Round to the nearest tenth.
    13·1 answer
  • Which equation represents y = x2 + 16x + 70 in vertex form?
    10·1 answer
  • PLEASSSSEEEE SOLVE AND EXPLAIN WILL GIVE BRAINLIEST
    10·1 answer
  • Multiple choice geometry help trig ?!!!!!!!!
    12·1 answer
  • Which is greater? 0.006 or 0.1
    11·1 answer
  • How many significant digits are in 0.000000567<br> 9<br> 8<br> 3<br> 2
    7·2 answers
  • The sum of two positive numbers is 16. What is the optimum value (maximum or minimum) for the sum of their squares?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!