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
Genrish500 [490]
3 years ago
7

HELP ME PLEASE, ILL GIVE BRAINLIEST TO YOU Each year, the Department of Water Works measures the chloride concentration level in

the water. The first year, they found the chloride concentration changed by −1 3/5 mg/L . It is estimated that the chloride concentration will change −2 1/15 mg/L the next year.
What is the total change that will likely occur in 2 years?

Enter your answer as a simplified mixed number in the box.
Mathematics
2 answers:
JulsSmile [24]3 years ago
7 0

Answer:

- 3 8/15

Step-by-step explanation:

Lunna [17]3 years ago
3 0
- 1 1/3 - 2  1/5

= -4/3 - 11/5

= -20/15 - 33/15

= -53/15 

= -3 8/15 mg/L


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
4 years ago
HELP FAST PLEASE
Nimfa-mama [501]

Answer:

a. 0

Step-by-step explanation:

1.  To find the slope given two points, use the following formula:

\frac{y^{2}- y^{1} }{x^{2}-x^{1}  }

2. y^{2} would be the second y-value (in the second ordered pair), 2, and y^{1} would be the first y-value (in the first ordered pair), also 2.

3. Same for the x-values. x^{2} is -2 and x^{1} is 4

4. Now plug in the values.

\frac{2-2}{(-2)-4}

5. This equals \frac{0}{-6} which simplifies to 0

8 0
3 years ago
Read 2 more answers
A temperature record in Antarctica was -120.the temperature recorded in the Sahara desert was 129.how many degrees warmer is 129
DanielleElmas [232]

This is   129 - (-120)

= 129 + 120

= 249  degrees warmer

7 0
3 years ago
Kyra observed that 85% of the students at a library liked reading mystery stories. If 30 students at the library did not like re
boyakko [2]
First  calculate that numeric value. It cannot be done immediately without calculations.

if 85% of studends liked mystery that means that 100% - 85% = 15% didnt like.

Those 15% are 30 that were given in text. Now we can calculate this using proportion:

15%        30 students
85%         x students

we use cross multiplication:
15*x = 30*85
x = 30*85/15
x = 170

Answer is 170
8 0
3 years ago
A bag held 3 red marbles, 1 blue marble, and 4 yellow marbles. Lee drew a red marble
Vilka [71]

Answer:

Step-by-step explanation:

3 red, 1 blue, and 4 yellow...thats a total of 8 marbles

so a red was drawn and not replaced....means we now have 7 marbles.

P(yellow) : since we still have 4 yellow and there are a total of 7 marbles, the probability of drawing a yellow is : 4/7 <==

6 0
3 years ago
Read 2 more answers
Other questions:
  • Rewrite as a simplified fraction<br> 2.267 = ?
    10·2 answers
  • Solve the equation, P= a + b + c, for a.
    13·1 answer
  • The rule of a sequence is 3n+1 write the first five terms
    11·1 answer
  • 2.Mrs. Fernandez and Mrs.Bosiljevac invaded the biology lab! They find some bacterial cultures and decide to experiment. Mrs. Fe
    6·1 answer
  • Please help i will give brainliest
    11·2 answers
  • Anyone please help me to do 4 ) f
    14·1 answer
  • A bakery celebrated its 25th anniversary
    7·1 answer
  • Please help me solve this...
    15·1 answer
  • What is the present value of $6,000 to be received at the end of 6 years if the discount is 12%
    9·2 answers
  • I give 20 points!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!