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
Marrrta [24]
3 years ago
11

Homework help, one of the few I have

Mathematics
2 answers:
Alex73 [517]3 years ago
8 0

Answer:

x=4 and the solution is not extraneous

Step-by-step explanation:

\sqrt{2x+1}=3 \\\\2x+1=9 \\\\2x=8 \\\\x=4

This solution is not extraneous, because plugging it back in you get:

\sqrt{2(4)+1}=3 \\\\\sqrt{9}=3 \\\\3=3

Hope this helps!

Bogdan [553]3 years ago
7 0

Answer:

X = 4, solution is not extraneous

Step-by-step explanation:

3 = √9

so we get the following comparison;

2X + 1 = 9 (both minus 1)

2X = 8 (divide by 2)

X = 4

if we fill in 4 for X. we get

√2•4+ 1 = √9 = 3 so the solution is not extraneous

You might be interested in
If a car can go 33 miles on a gallon of gas, how much gas will it use for 198 miles?
Anni [7]
Just do 198 divide by 33. The answer is how much gas will be used.
7 0
3 years ago
Read 2 more answers
6,691 ÷28<br><img src="https://tex.z-dn.net/?f=6691%20%5Cdiv%2028" id="TexFormula1" title="6691 \div 28" alt="6691 \div 28" alig
slava [35]

The question you've asked and the question on the attachment are different.

6691 ÷ 28  = 238.9642857

2409 ÷ 19 = 126.7894737

6 0
3 years ago
What is the value of the expression? negative two to the sixth power -(six) to the second power Enter your answer in the box.
ziro4ka [17]
-2 ^ 6            -6 ^ 2        .............
  -64                -36
5 0
3 years ago
Through (2,-4), parallel to y=3x+2
Tanya [424]

Answer:

y=3x-2

Step-by-step explanation:

parallel is with the same slope

so plug in y and x into y-Y=m(x-X)

so it be y-(-4)=3(x-2)

y+4=3x-6

subtract 4 from both sides

y=3x-2

8 0
3 years ago
What are the cost and benefits of having insurance
juin [17]
The benefits of it is payment of losses and managing cash flow
4 0
2 years ago
Read 2 more answers
Other questions:
  • Please answer the question to the best of your ability :)
    8·1 answer
  • Can anyone solve part C?​
    6·2 answers
  • A certain taxi cab cost $2 per mile plus a $5 flat fee. The cab driver tells you you own him $11 m how many miles did you ride i
    14·1 answer
  • Solve for c. −18c=2<br><br> −16<br><br> −4<br><br> 4<br><br> 16
    13·2 answers
  • 6! + 2! <br><br> i need help. i have not learned this yet.
    15·1 answer
  • What is the equation for this
    15·2 answers
  • The solution for the following system of equations is shown on the graph. What is the solution?
    10·1 answer
  • 7. Stan is serving lemonade at the school's dance out of no
    8·2 answers
  • How to find the area of a triangle with given coordiantes? #5-50
    7·1 answer
  • Please help please....
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!