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
nata0808 [166]
3 years ago
6

1\ solve the system using elimination. 4x+5y=2 -2x+2y=8

Mathematics
1 answer:
il63 [147K]3 years ago
6 0
The answer would be 6x+3y=2
You might be interested in
Does there exist a di↵erentiable function g : [0, 1] R such that g'(x) = f(x) for all x 2 [0, 1]? Justify your answer
agasfer [191]

Answer:

No; Because g'(0) ≠ g'(1), i.e. 0≠2, then this function is not differentiable for g:[0,1]→R

Step-by-step explanation:

Assuming:  the function is f(x)=x^{2} in [0,1]

And rewriting it for the sake of clarity:

Does there exist a differentiable function g : [0, 1] →R such that g'(x) = f(x) for all g(x)=x² ∈ [0, 1]? Justify your answer

1) A function is considered to be differentiable if, and only if  both derivatives (right and left ones) do exist and have the same value. In this case, for the Domain [0,1]:

g'(0)=g'(1)

2) Examining it, the Domain for this set is smaller than the Real Set, since it is [0,1]

The limit to the left

g(x)=x^{2}\\g'(x)=2x\\ g'(0)=2(0) \Rightarrow g'(0)=0

g(x)=x^{2}\\g'(x)=2x\\ g'(1)=2(1) \Rightarrow g'(1)=2

g'(x)=f(x) then g'(0)=f(0) and g'(1)=f(1)

3) Since g'(0) ≠ g'(1), i.e. 0≠2, then this function is not differentiable for g:[0,1]→R

Because this is the same as to calculate the limit from the left and right side, of g(x).

f'(c)=\lim_{x\rightarrow c}\left [\frac{f(b)-f(a)}{b-a} \right ]\\\\g'(0)=\lim_{x\rightarrow 0}\left [\frac{g(b)-g(a)}{b-a} \right ]\\\\g'(1)=\lim_{x\rightarrow 1}\left [\frac{g(b)-g(a)}{b-a} \right ]

This is what the Bilateral Theorem says:

\lim_{x\rightarrow c^{-}}f(x)=L\Leftrightarrow \lim_{x\rightarrow c^{+}}f(x)=L\:and\:\lim_{x\rightarrow c^{-}}f(x)=L

4 0
3 years ago
Wendy needs to purchase 34 vases, which cost $3 each, and flowers for the vases, which cost $2 each. She has $442 to spend on he
SVETLANKA909090 [29]
It would be D. A wouldn’t fit the question
5 0
2 years ago
Read 2 more answers
Consider the following sets:
bagirrra123 [75]
U = {points on the coordinate plane}
A = {solutions to the equation y = 2x + 5}
B = {points on the line y = mx}

Value of the slope m so that  {2x + 5} ∩ {mx} =Ф
This means that {2x + 5} never intersects with {mx}
To that end m=2 (same slope), if so the 2 linear functions:

y = 2x+5 and y = 2x are PARALLEL


4 0
3 years ago
Read 2 more answers
Quick please I really need this
Kipish [7]

Answer:

y = 39

Step-by-step explanation:

550 x \pi = \pi r^{2} x 11 + y

550 x \frac{7}{22} = \frac{7}{22} x 11 x 11 + y

550 x \frac{7}{22} x \frac{22}{7} = 11 x 11 + y

550 = 11 x 11 + y

\frac{550}{11} = \frac{11}{11} x 11 + y

50 = 11 + y

50 - 11 = y

39 = y

6 0
2 years ago
The sum of the solutions of (12x - 4) = 8 is__
Natalija [7]

Answer:

Solution,

12x-4=8

or,12x=8+4

or,12x=12

or,x=12/12

therefore,x=1

hope it helped you

5 0
3 years ago
Other questions:
  • 5x23x2 is this associative?
    9·2 answers
  • The height of a cylinder is four times its radius. Find a function that models the volume V of the cylinder in terms of its radi
    13·1 answer
  • A pentagonal prism is cut be a plane perpendicular to the base . What is the shape of the cross section that is formed?
    10·1 answer
  • How do I solve for the answer?
    5·1 answer
  • R^2+3r+5-r^3/r is a quadratic/cubic/linear polynomial?
    10·1 answer
  • Can u plz solve it asap with explanation. Thank you. ​
    8·2 answers
  • The 7th grade class participated in the following
    15·1 answer
  • PLEASE HELP WILL GIVE BRAINLIEST
    13·1 answer
  • Please help me quick
    13·1 answer
  • A rectangular prism has length of 5 feet and a width of 9 feet. If the surface area of the prism is 174 square feet,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!