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
Over [174]
3 years ago
13

If f(x) and r1(x) are inverse functions of each other and f(x)=2x+5 , what is f^-1(8) ?

Mathematics
1 answer:
GenaCL600 [577]3 years ago
5 0

Answer:

3/2

Step-by-step explanation:

Given y = 2x + 5, let's rewrite the equation in terms of x;

y = 2x + 5 => Bring 5 to the other side

2x = y - 5 => Divide either side by 2

x = (y - 5)/2

If we want to take the inverse, simply swap the variable's positions...

We have y = (x - 5)/2

Now let's determine f^-1(8), substituting for "y" provided y is our inverse, f^-1

f^-1(8) = (8 - 5)/2 = 3/2

Solution: 3/2

You might be interested in
What's the formula to find this?
Komok [63]
25 cubic centimeters....
Hope this helps! all you had to do it multipley <span />
7 0
3 years ago
Read 2 more answers
If the subject without diabetes eats a high-carb food such as the candy bar or orange smoothie, then the blood glucose levels wi
zysi [14]

Answer:

1. The right answer is stay the same.

In a healthy subject, a diet rich in sugar (such as starch and fast sugars) increases blood sugar in the first two hours after ingestion and then stabilizes after the third hour with the action of the patient. insulin which has a hypoglycemic action. But over time the pancreas (the organ that secretes insulin) will get tired over time if these foods are eaten excessively.

2. The right answer is stay the same.

In a healthy person, a diet of low-sugar foods (such as fiber) does not increase blood glucose (or very little) and helps maintain normal blood glucose levels. These foods are good for the health because they preserve the pancreas as long as there is not much solicitude by the presence of a hause of glucose in the blood.

3. The right answer is increase.

In a type 1 diabetic patient, the pancreas does not secrete insulin appropriately, and this is due to self-destruction of the organ by the immune system (autoimmune disease). This implies that during the ingestion of foods rich in sugars, the blood sugar will be hard to regain its normal level, that is why it remains elevated after three hours after ingestion.

4. The right answer is stay the same.

Foods low in carbohydrates are very good for the health and is recommended in the subjects diabetic (type 1 and 2) and even for the healthy subjects to avoid the appearance of the diabetes afterwards. These foods help diabetics to have controlled blood glucose levels when their degradation does not give glucose.

6 0
3 years ago
Multiply and reduce to lowest terms. Convert into a mixed number if necessary.
BlackZzzverrR [31]

Answer:

1 1/3

Step-by-step explanation:

2(8/12)=16/12=1 4/12=1 1/3

3 0
2 years ago
Factor the expression completely:<br> 2x² + 5x - 12
Finger [1]
Using the slip and slide method:

2x^2+5x-12
x^2+5x-24
(x+8)(x-3)

(x+8/2)(x-3/2)
(x+4)(2x-3)

Final answer: (2x-3)(x+4)
7 0
3 years ago
Read 2 more answers
Pls help me with this problem:( and I’ll be happy if you write steps for this
andreev551 [17]

Answer:

b/(b+a)

Step-by-step explanation:

(1/a)-(1/b) :[ (b²-a²)/ab²]

first  solve :

common denominator ab

(1/a)-(1/b)  = (b-a)/ab

[b-a/ab] : [(b²-a²)/ab²]

when divide fraction ( division sign turn to (×) and flip the second fraction(reciprocal):

[b-a/ab] × [ab²/ (b²-a²)]

then  simplify : ab²/ab = b

(b-a)×(b/b²-a²)    

factorize : b²-a² = (b-a)(b+a)

(b-a)×(b/(b-a)(b+a))  simplify : (b-a)/b-a = 1

[(b-a)(b)]/[(b-a)(b+a)

b/b+a

4 0
3 years ago
Other questions:
  • A puppy and a kitten are 180 meters apart when they see each other. The puppy can run at a speed of 25 m/sec, while the kitten c
    8·2 answers
  • Which method is most efficient method to use to solve 2x^2+5x-11=0
    7·1 answer
  • how do you write the equation of a line in slope-intercept form when given two points on the line? the two points are (-4,4) and
    11·1 answer
  • I keep gettin it wrong please help!!!
    6·1 answer
  • Solve for k, the constant of variation, in an inverse variation problem where y=17 x=6
    10·1 answer
  • Please help me, I will give you brainliest if it's right! &lt;3 :)
    15·1 answer
  • 2624 sq yd<br> 3328 sq yd<br> 2316 sq yd<br> 2880 sq yd
    9·1 answer
  • The function f(x) = { x + 1 is used to complete this Which statements are true of the given function? Check all that apply. tabl
    10·1 answer
  • The minute hand of a clock is 14 inches long. what distance does its tip move in 27 minutes?​
    13·1 answer
  • PLEASE ANSWERRRRRRRRRRRR
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!