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
Naily [24]
3 years ago
15

Factorise 400x^2-49y^2

Mathematics
2 answers:
sattari [20]3 years ago
6 0

Answer:

(20x - 7y)(20x + 7y).

Step-by-step explanation:

This is the difference of 2 squares;

a^2 - b^2 = (a - b)(a + b). So:

400x^2-49y^2

= (20x - 7y)(20x + 7y).

bazaltina [42]3 years ago
3 0

Answer:

(20x + 7y) (20x - 7y)

Step-by-step explanation:

400x²-49y² = (20x + 7y) (20x - 7y)

You might be interested in
Help pleaseeeee
Pavel [41]

Answer:

3419.46

Step-by-step explanation:

(pir^2h)/3

(3.14(121)(27)/3

3419.46

4 0
3 years ago
The radius of the circle whose equation is (x-3)^2 + (y+1)^2 = 16 is
Firdavs [7]

Answer:

4

Step-by-step explanation:

The general equation of a circle with center (a, b) and radius r is given by the equation;

(x-a)^{2}+(y-b)^{2}=r^{2}

The constant in the right hand side of the equation is simply the square of the radius;

We have been given the following equation;

(x-3)^2 + (y+1)^2 = 16

Comparing this with the general equation above;

r^{2}=16\\\\r=\sqrt{16}=4

4 0
3 years ago
If possible may someone help me please?
Orlov [11]

Answer:

Given, ∠MNP=107 degree.

Therefore, ∠QPN= 107 degree. [as, MN=PQ]

We know, sum of four angles of a quadrilateral is 360 degree.

And as MN=PQ, ∠NMQ=∠MQP.

Therefore, ∠MQP= {360 degree-( 107degree+ 107 degree)}/2

                             =( 360 degree-214 degree)/2

                            = 146 degree/2

                            =73 degree.

hope this will help you.

                           

Step-by-step explanation:

4 0
3 years ago
Help plz lol? 15 ponts :)
Brrunno [24]

Answer:

The scale factor is 2.

Step-by-step explanation:

Divide 2 by 1 then you get 2. I got the 2 and the one from the shapes. So don’t get confused ;)

6 0
2 years ago
Which triangle is a rotation of triangle 3?<br><br><br><br> Δ1<br> Δ2<br> Δ3<br> Δ4
nikdorinn [45]

Answer:

1

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • The population of rabbits in a national forest is modeled by the formula P= 12,000 + 1000 (t+1) where t is the number of years f
    11·1 answer
  • Malcolm has $638.54 in his checking account. He must maintain a $500 balance to avoid a fee. He wrote a check for $159.50 today.
    6·1 answer
  • How to find the side of a rhombus with given diagonals?
    15·1 answer
  • There are a total of 63 bikes in a store. If the ratio of blue bikes to red bikes is 4 to 5, how many of the bikes are blue?
    9·1 answer
  • Convert an annual rate of 6.4% to a quarterly rate.
    11·2 answers
  • Which of the following is an equivalent form of the compound inequality −33 &gt; −3x − 6 ≥ −6?
    13·1 answer
  • Explain how you got the answer first two gets branliest
    10·1 answer
  • Maria's Starting wage for her new job is $8.50 per hour. Each month during her first year. her hourly wage will increase by $.50
    6·1 answer
  • The function f is defined by f(x)=x^2+3x-10
    12·1 answer
  • Hm uh I dont get it help ?????..........
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!