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
marin [14]
3 years ago
9

Plz help me with it

Mathematics
2 answers:
Gekata [30.6K]3 years ago
8 0

Answer:  a. 1

<u>Step-by-step explanation:</u>

\sqrt{2x+7}+1=\sqrt{2x+14}\\\\(\sqrt{2x+7}+1)^2=(\sqrt{2x+14})^2\\\\2x+7+2\sqrt{2x+7}+1=2x+14\\\\2x+8+2\sqrt{2x+7}=2x+14\\\\2\sqrt{2x+7}=6\\\\\sqrt{2x+7}=3\\\\(\sqrt{2x+7})^2=(3)^2\\\\2x+7=9\\\\2x=2\\\\x=1\\\\\\Check:\\\sqrt{2(1)+7}+1=\sqrt{2(1)+14}\\\\\sqrt9+1=\sqrt16\\\\3+1=4\ \checkmark

vovangra [49]3 years ago
5 0

\sqrt{2x + 7}  + 1 =  \sqrt{2x + 14 }  \\ x = 1
You might be interested in
What is -1.2 times 1 1/5 divided by 3/10
djyliett [7]

I think it would be easier to covert the fractions to decimals here

-1.2 * 1 1/5 / 3/10

= -1.2 * 1.2 / 0.3

= -1.44 / 0.3

= - 4.8 answer

6 0
3 years ago
I need help? anyone know the answer?
zloy xaker [14]

Answer:

the answer you are looking for is B

8 0
3 years ago
5 more than b divided by 2 is 5
gayaneshka [121]
We have an equation: (5+b)/2= 5
⇒ 5+b= 5*2
⇒ 5+b= 10
⇒ b= 10-5
⇒ b= 5

Final answer: b=5~
3 0
3 years ago
Given f(x)=½(8-2x), what is the value of f(-5)? help plez
guajiro [1.7K]

Answer:

9

Step-by-step explanation:

f(x)=½(8-2x)

Let x = -5

f(-5)=½(8-2* (-5))

     =½(8+10)

     =½(18)

     =9

8 0
3 years ago
Read 2 more answers
-5x+8y=42 find the value of y when x equals 6
marissa [1.9K]
Y=9 is the answer.....
5 0
3 years ago
Other questions:
  • Please help me now!!! Which equivalent fractions can you use to find the sum of 2/8 + 3/9
    5·1 answer
  • How do u solve <br>3 (x+8) - 3x ?
    7·2 answers
  • brooke has scores of 84,72,90,87, and 95 on her first five quizzes. After taking the sixth quiz, brookes mean score increased. w
    10·2 answers
  • I am a 2 dimensional shape that has 5 obtuse angles. I do not have any sides that are parallel.
    5·1 answer
  • Graph the line y = 2x.
    9·1 answer
  • What examine the rotation. which best describes point D​
    9·1 answer
  • PLEASE HELP ME ANSWER THIS QUESTION PLEASEEEE I WILL GIVE BRAINLIST!!!!!!!!!!!!!!
    12·1 answer
  • X−1.2=3 i dont understand this stupid math problem
    15·1 answer
  • PLEASE HELP ASAP RNNNN
    6·2 answers
  • Which expression below shows that 98 can be written as the product of prime numbers?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!