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
Makovka662 [10]
3 years ago
10

Find the value of x in the equation 2√ x + 20 = 15 + 3√ x .

Mathematics
1 answer:
VikaD [51]3 years ago
8 0
It would be B

It wouldn't be A, C or D because...
16 is a square number and can be simplified to a whole number... 4
-5 cannot be inside a surd and neither can any other negative numbers
25 is a square number and can be simplified to a whole number... 5
You might be interested in
True or false the values [x] and [-x] are always equal
RoseWind [281]

Answer:

If you mean |x| and |-x| yes they are equal.

Step-by-step explanation:

Brackets do not exactly specify the meaning of absolute value.

On most keyboards, above the enter button on the main keyboard part (not the keypad one) there is a back slash symbol \ and if you hold shift, there might be another symbol | which more accurately represents absolute value,

If you aren't talking about the absolute value, then no.

4 0
3 years ago
Find the inflection point of the function of f(x) = x³ -6x² +12x
Wewaii [24]

Points of inflections are zeroes of the second derivative. We have:

f(x)=x^3-6x^2+12x\implies f'(x)=3x^2-12x\implies f''(x)=6x-12

So, the second derivative equals zero if and only if

f''(x)=0\iff 6x-12=0 \iff 6x=12 \iff x=2

So, this is the only point of inflection of this function.

5 0
3 years ago
The length of a rectangle solid is 3.0 m the width is 0.6 meter, and the height is 0.4 meter. Find, to the nearest tenth, the nu
Ad libitum [116K]

Answer:

0.72\,\,m^3

Step-by-step explanation:

Given:

Length of a rectangle solid = 3 m

Width of a rectangle solid = 0.6 m

Height of a rectangle solid = 0.4 m

To find: Volume of the solid

Solution:

Volume of the solid = length × breadth × height

=3\times 0.6\times 0.4=0.72\,\,m^3

So, the number of cubic meters in the volume of the solid is 0.72\,\,m^3

3 0
3 years ago
PLEASE HELP!!!!!!!!!!!!
gulaghasi [49]

Answer:

I didnt get what the photo shows....

Step-by-step explanation:

7 0
3 years ago
What is 13x - 7y + 4x?
AlladinOne [14]
17X-7Y. You add or subtract the same variables, in this case you only have two x's and one y. So you add them, because you have a addition sign. 13x+4x and you leave the Y alone, because there is not another Y variable.
4 0
3 years ago
Other questions:
  • Solve y = x2 + 23 for x
    9·1 answer
  • Sophie has a hard rubber ball whose circumference measures 13 inches. she wants to store it in a box. what is the number of cubi
    12·1 answer
  • The distance between two cities is 220km. There are approximately 8km in 5 miles. What is the distance in miles?
    5·1 answer
  • 2512=3.14(r2)(8)<br> What is the diameter???<br> Help please!!!!!!
    9·1 answer
  • Write an equation for a line perpendicular to f(x)=5x−1 and passing through the point (5,20)
    12·1 answer
  • Blank=1cm<br> 1cm=4ft<br> How long is the table?<br><br> 6 feet<br><br> 5 feet<br><br> 8 feet
    13·2 answers
  • Please help i dont get thissss!!!
    11·1 answer
  • ? X 1/4 = 1/3 <br><br> Need help please
    7·1 answer
  • 13 - 4x = 1 - x<br><br>Step by step please​
    12·2 answers
  • Graph transformations GCSE maths. Please helpppp. Thanks
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!