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
Alex_Xolod [135]
1 year ago
9

Help me please it’s would be very appreciated!

Mathematics
1 answer:
Basile [38]1 year ago
3 0

Answer:

i believe its the last one 2 x 10 = 20

Step-by-step explanation:

You might be interested in
Three times n equals 45
prohojiy [21]
3n = 45 n= 15 super simple ;)
3 0
3 years ago
Read 2 more answers
Solve irrational equation pls
rusak2 [61]
\hbox{Domain:}\\
x^2+x-2\geq0 \wedge x^2-4x+3\geq0 \wedge x^2-1\geq0\\
x^2-x+2x-2\geq0 \wedge x^2-x-3x+3\geq0 \wedge x^2\geq1\\
x(x-1)+2(x-1)\geq 0 \wedge x(x-1)-3(x-1)\geq0 \wedge (x\geq 1 \vee x\leq-1)\\
(x+2)(x-1)\geq0 \wedge (x-3)(x-1)\geq0\wedge x\in(-\infty,-1\rangle\cup\langle1,\infty)\\
x\in(-\infty,-2\rangle\cup\langle1,\infty) \wedge x\in(-\infty,1\rangle \cup\langle3,\infty) \wedge x\in(-\infty,-1\rangle\cup\langle1,\infty)\\
x\in(-\infty,-2\rangle\cup\langle3,\infty)



\sqrt{x^2+x-2}+\sqrt{x^2-4x+3}=\sqrt{x^2-1}\\
x^2-1=x^2+x-2+2\sqrt{(x^2+x-2)(x^2-4x+3)}+x^2-4x+3\\
2\sqrt{(x^2+x-2)(x^2-4x+3)}=-x^2+3x-2\\
\sqrt{(x^2+x-2)(x^2-4x+3)}=\dfrac{-x^2+3x-2}{2}\\
(x^2+x-2)(x^2-4x+3)=\left(\dfrac{-x^2+3x-2}{2}\right)^2\\
(x+2)(x-1)(x-3)(x-1)=\left(\dfrac{-x^2+x+2x-2}{2}\right)^2\\
(x+2)(x-3)(x-1)^2=\left(\dfrac{-x(x-1)+2(x-1)}{2}\right)^2\\
(x+2)(x-3)(x-1)^2=\left(\dfrac{-(x-2)(x-1)}{2}\right)^2\\
(x+2)(x-3)(x-1)^2=\dfrac{(x-2)^2(x-1)^2}{4}\\
4(x+2)(x-3)(x-1)^2=(x-2)^2(x-1)^2\\

4(x+2)(x-3)(x-1)^2-(x-2)^2(x-1)^2=0\\
(x-1)^2(4(x+2)(x-3)-(x-2)^2)=0\\
(x-1)^2(4(x^2-3x+2x-6)-(x^2-4x+4))=0\\
(x-1)^2(4x^2-4x-24-x^2+4x-4)=0\\
(x-1)^2(3x^2-28)=0\\
x-1=0 \vee 3x^2-28=0\\
x=1 \vee 3x^2=28\\
x=1 \vee x^2=\dfrac{28}{3}\\
x=1 \vee x=\sqrt{\dfrac{28}{3}} \vee x=-\sqrt{\dfrac{28}{3}}\\

There's one more condition I forgot about
-(x-2)(x-1)\geq0\\
x\in\langle1,2\rangle\\

Finally
x\in(-\infty,-2\rangle\cup\langle3,\infty) \wedge x\in\langle1,2\rangle \wedge x=\{1,\sqrt{\dfrac{28}{3}}, -\sqrt{\dfrac{28}{3}}\}\\
\boxed{\boxed{x=1}}
3 0
2 years ago
5. Artie uses 1 1/3 yards of rope to make the bottom of his hammock stronger He uses 10 inches of rope to strengthen some areas
LenKa [72]
The correct answer is C 11/8 and 48 inches
7 0
3 years ago
Which expression represents the phrase ''4 times as much as the sum of 15 and 9'' A. 4 x (15+9) B. (4 + 15) x 9 C. 4 + 15 x 9 D.
expeople1 [14]
A. 4 × (15 + 9)
Is the correct answer.
3 0
3 years ago
Read 2 more answers
PLEASE HELP:
Kryger [21]
Alright so lets start with an arbitrary amount of students. Just to help us visualize the problem.

Say, 100 students for the first year when it was founded?

So far,
1996 - 100 students

From 96' to 97', it doubles. So:
1996 - 100 students
1997 - 200 students

From 97' to 98', it doubles AGAIN.
1996 - 100 students
1997 - 200 students
1998 - 400 students

So, what the percentage increase from 100, to 400?

Well, 100 x 4 gives us 400, so it's a 400 percent increase.
3 0
3 years ago
Read 2 more answers
Other questions:
  • I need help please.
    13·1 answer
  • Algebra 2 find the solution of the equation using a method of your choice
    14·1 answer
  • A farmer needs to enclose a section of land in the shape of a parallelogram by using one side of a barn for one side. The barn a
    5·1 answer
  • Find x of the triangle
    8·1 answer
  • THE THING ON THE TOP IS y=4/3x-4<br> Y=2/3x-6
    15·1 answer
  • 15 + (-15) = <br><br> SOLVEE<br><br> 10 points
    11·2 answers
  • Solve the system of equations below by graphing both equations with a pencil and paper what is the solution y= -2x +4 y=x-2
    8·1 answer
  • 1, 2, 3, or 4? <br><br> i need this ASAP!!<br><br> will give brainliest and a thanks to fast answers
    5·1 answer
  • HELPPPP!!!!!<br> my testt
    5·1 answer
  • Solve the equation: 5/x-1 - 3 = 4/x
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!