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
shepuryov [24]
3 years ago
7

If a=1/x+1/y, what is the value of 1/a

Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0

Answer:

 1/a = xy/(y-x)

Step-by-step explanation:

Simplify the reciprocal:

 1/a = 1/(1/x -1/y) = 1/((y-x)/(xy))

 1/a = xy/(y-x)

You might be interested in
Find an equation to the line tangent to y = 5 + |x – 2| at the coordinate (2, 5) pls answer
myrzilka [38]

Answer:

Step-by-step explanation:

Finding an equation of a tangent line to that function requires that we find the derivative of the function at that point. Since this is an absolute value function with its cusp at (2, 5), the function is not differentiable here.

3 0
3 years ago
PLEASE HELP ASAP<br><br> 3/10/p=4/5/1/4
kati45 [8]

Answer:

3

1

0

=

4

5

1

4

Step-by-step explanation:

6 0
3 years ago
Select the correct answer.
ale4655 [162]

Answer:

i think its b

Step-by-step explanation:

5 0
3 years ago
Jack and Jill were buying water jugs jack bought 2 medium sized jugs and 3 large sized jugs for 150 dollars and Jill bought 4 me
Mademuasel [1]

Answer: the cost of one medium sized jug is $60

the cost of one large sized jug is $10

Step-by-step explanation:

Let x represent the cost of one medium sized jug.

Let y represent the cost of one large sized jug.

Jack bought 2 medium sized jugs and 3 large sized jugs for 150 dollars. This means that

2x + 3y = 150 - - - - - - - - - - - 1

Jill bought 4 medium jugs and 12 large jugs for 360 dollars. This means that

4x + 12y = 360 - - - - - - - - - - - 2

Multiplying equation 1 by 4 and equation 2 by 2, it becomes

8x + 12y = 600

8x + 24y = 720

Subtracting, it becomes

- 12y = - 120

y = - 120/ - 12

y = 10

Substituting y = 10 into equation 1, it becomes

2x + 3 × 10 = 150

2x + 30 = 150

2x = 150 - 30 = 120

x = 120/2 = 60

3 0
3 years ago
What is the domain of the function below?
skad [1K]

Answer:

A. {-9, -4, -1}

Step-by-step explanation:

Every number on the f(x) side is the domain which is the input numbers.

If you have any additional questions feel free to ask me or your teacher so you can really master what you're learning. :)

6 0
3 years ago
Read 2 more answers
Other questions:
  • 9. Compare these measurements. 3250 meters _____ 3.5 kilometers
    7·1 answer
  • According to a survey, 60% of people have a dog. If 5 people are selected randomly, what is the probability that at least 2 of t
    12·1 answer
  • A falcon flew 70 miles in 3 hours. What was the speed of the falcon?
    14·2 answers
  • If a car travels 378.8 miles on 53 liters of gas, how many liters of gas will it take to go 692 miles if the car travels at the
    8·1 answer
  • Translate the sentence into an equation.
    14·1 answer
  • Helpppppooppppppppppp
    5·2 answers
  • 1)
    7·1 answer
  • If the scale is 2inches = 5miles. What is the amount of miles in 4 inches?
    11·1 answer
  • As an airplane rises. the outside temperature from 3.6F for every 1000 feet of elevation gain. Suppose the outside temperature i
    11·1 answer
  • A bag of baseballs cost 9.99 dollars and each bag contains 6 baseballs. if the baseballs were sold individually, how much would
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!