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
zalisa [80]
3 years ago
7

I need help on this I am just going to use the picture

Mathematics
2 answers:
iren [92.7K]3 years ago
8 0

D is the correct answer

Radda [10]3 years ago
4 0

Answer:

D

Step-by-step explanation:

let y = f(x), that is

y = \frac{2x-3}{5}

Rearrange making x the subject

Multiply both sides by 5

5y = 2x - 3 ( add 3 to both sides )

5y + 3 = 2x (divide both sides by 2 ) , then

x = \frac{5y+3}{2}

Change y back into term of x, hence

f^{-1}(x) = \frac{5x+3}{2} → D

You might be interested in
Let S = {A, B, C, D} be some set of four elements of a vector space. Suppose that D = 2A + B + 3C and C = A − B. Is {A, B, D} li
Olin [163]

Answer:

As explained

Step-by-step explanation:

given that D = 2A + B + 3C and S = {A, B, C, D}, C = A − B

for {A, B, D}  to be linearly dependent implies that A B and D will have values that not dependent on the sample space C.

if C = A -B is substituted in the original equation, the generated equation, 5A -2B will have values each as against C which is linearly independent.

Also, D will have values that are linearly dependent.

4 0
3 years ago
Find the slope of -10x + 2y = 8 using slope intercept form
Elodia [21]

Answer:

you subtracted 2y from both sides to each side getting 2y = 10x +8

Step-by-step explanation

8 0
3 years ago
Read 2 more answers
Xavier needs to bike a minimum of 80 miles this week for his training. If he already biked 14 miles this week, then how many mil
ioda
Hi.

First, let's calculate how many miles he has left.

80 - 14 = 66

Now, to figure out how many miles a day in 6 days, divide.

66/6 = 11

Xavier should bike 11 miles on each of the 6 remaining days.
3 0
2 years ago
What are the slope and the y-intercept of the linear function that is represented by the table?
mafiozo [28]

Answer:

slope is -2 and the y-intercept is 12

Step-by-step explanation:

a key thing to remember: x is always equal to 0 when finding the y-intercept.

so if you look at the table for where 0 is, you get the point (0,12) meaning the y-intercept is 12.

to find the slope use the equation: slope= change in y/change in x

you can use any two points to find this.

lets take the points of the x-intercept (6,0) and the y-intercept (0,12)

12-0/0-6

12/-6

-2 = slope

8 0
3 years ago
Suppose a tank contains 400 gallons of salt water. If pure water flows into the tank at the rate of 7 gallons per minute and the
Strike441 [17]

Answer:

Step-by-step explanation:

This is a differential equation problem most easily solved with an exponential decay equation of the form

y=Ce^{kt}. We know that the initial amount of salt in the tank is 28 pounds, so

C = 28. Now we just need to find k.

The concentration of salt changes as the pure water flows in and the salt water flows out. So the change in concentration, where y is the concentration of salt in the tank, is \frac{dy}{dt}. Thus, the change in the concentration of salt is found in

\frac{dy}{dt}= inflow of salt - outflow of salt

Pure water, what is flowing into the tank, has no salt in it at all; and since we don't know how much salt is leaving (our unknown, basically), the outflow at 3 gal/min is 3 times the amount of salt leaving out of the 400 gallons of salt water at time t:

3(\frac{y}{400})

Therefore,

\frac{dy}{dt}=0-3(\frac{y}{400}) or just

\frac{dy}{dt}=-\frac{3y}{400} and in terms of time,

-\frac{3t}{400}

Thus, our equation is

y=28e^{-\frac{3t}{400} and filling in 16 for the number of minutes in t:

y = 24.834 pounds of salt

6 0
3 years ago
Other questions:
  • How much of each ingredient will cassandra need to use in order to cut the recipe in half? the numbers to cut in half are 2 1\4
    15·1 answer
  • If f(x) = (3x+7)^2 ,then f(1) =
    8·2 answers
  • Solve the equation 100=5x
    6·2 answers
  • Solve for x: x − 2 > 2x + 12. (5 points)
    15·2 answers
  • Line m is represented by the function f(x) = 1/3x +5/2. After transformation, the image, line m’, is represented by the function
    9·2 answers
  • If y= -6 when x= -2 find y when x= 5
    10·1 answer
  • Can someone please help me ASAP
    12·1 answer
  • If f(x)=x2+3x+5 what is f(3+h)
    13·1 answer
  • A cereal box has a length of 8 inches, a width of 114 inches, and a height of 12 18 inches. What is the volume of the cereal box
    13·2 answers
  • A number rounded to the nearest hundred thousand is 400,000 the same number rounded to the nearest ten thousand is 350,000 what
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!