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
Serjik [45]
3 years ago
11

Factorise21x squared - 14x​

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
6 0

Answer:

7x(3x - 2)

Step-by-step explanation:

21 {x}^{2}  - 14x \\  \\  = 7x(3x - 2)

You might be interested in
Plug in the point to determine if it is on the circle<br> (x – 3)² + y2 = 4<br> (5,0)
Butoxors [25]

Answer:

yes

Step-by-step explanation:

(5_3)^2+2(0)=4

substitute with the 5 to x and 0 to y

8 0
3 years ago
What is the value of x?
Alisiya [41]
Simplify the first numerator first
-2(x+1)
-2x-2

Then you can set up an equation using cross multiplication
5(-2x-2)= 3x

Simplify and solve
-10x-10=3x
-10=13x
-10/13=x

Final answer: x=-10/13
3 0
2 years ago
Five friends equally shared half of one large pizza and 1/4 of another large pizza. what fraction of each pizza did each friend
attashe74 [19]
1/2 divide by 5= 1/10
1/4 divide by 5=  1/20                              so    1/10 is also 2/20+1/20=3/20

so the answer is 3/20 of a pizza
 hope this helped and plz leave a thank you

3 0
3 years ago
Determine the distance between point (x1, y1) and point (x2, y2), and assign the result to point distance. the calculation is: d
Ronch [10]

we are given two points as

(1.0, 2.0) and (1.0, 5.0)

so,

(x1, y1)= (1.0 , 2.0)

(x2, y2)= (1.0 , 5.0)

x1=1 , y1=2

x2=1 , y2=5

now, we can use distance formula

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

now, we can plug values

and we get

d=\sqrt{(1-1)^2+(5-2)^2}

d=\sqrt{(0)^2+(3)^2}

d=\sqrt{(3)^2}

d=3

so, distance between points is 3...........Answer

5 0
3 years ago
Plz help.......................
True [87]
Let's use the slope intercept form of a line which is:

y=mx+b where m=slope and b=y-intercept.

Mathematically m=(y2-y1)/(x2-x1) and the y-intercept is just the value of y when x is equal to zero, where the line intercepts the y axis...

First you want to find the slope by finding two clearly identifiable points on the graph...I'll pick (4,4) and (0,1), now we can calculate the slope or "m"...

m=(4-1)/(4-0)=3/4 so now we can say our line is:

y=0.75x+b, using point (4,4) we can now solve for b.

4=0.75(4)+b

4=3+b

b=1 so the line is"

y=0.75x+1
4 0
3 years ago
Other questions:
  • When is the substitution method a better method than graphing for solving a system of linear equations?
    13·1 answer
  • Help!!!!!!!!!!!!!!!!!!!!!!!!!!!
    11·1 answer
  • If f(x)=3-2xand g(x)= 1/x+5, what is the value of f/g (8)?
    11·1 answer
  • Plz solve this <br>ans = 4400​
    9·1 answer
  • Please help . Put step by step workings please. Also I need help with both questions
    8·1 answer
  • Need this ASAP thanks
    6·1 answer
  • Need help with these types of questions
    12·2 answers
  • A bag contains red marbles and black marbles. For every 1 black marble,
    12·1 answer
  • Nth term of the sequence 8,48,288
    7·1 answer
  • 3/a times x -4 equals 20
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!