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
Ad libitum [116K]
3 years ago
10

Simplify (a+1/a)^2-(a-1/a)^2​

Mathematics
1 answer:
scoray [572]3 years ago
4 0
Answer: 4/a

Explanation:
(a+1/a)^2 - (a-1/a)^2
= (a^2 + 2a + 1)/a^2 - (a^2 - 2a + 1)/a^2
= (a^2 + 2a + 1 - a^2 + 2a - 1)/a^2
= 4a/a^2
= 4/a
You might be interested in
Assign two variables for each problem, and write the equations. Do not solve.
Xelga [282]
Call the number of trumpet players "T" and the number of horn players "H".

We can use the given information to set up equations:

1."<span>the number of trumpet players is 4 times the number of French horn players"
T=4H

2. "</span><span>There are 35 trumpet and French horn players in the band."
T+H=35

If you were asked to solve you could now do it by substitution:
4H+H=35
5H=35
H=7
T=4H
T=4(7)
T=28</span>
7 0
3 years ago
How many adult tickets were sold if each adult ticket sold was $6 and each student ticket was $4.50 and 260 tickets were sold fo
erik [133]

Answer:

   Adult tickets sold:   156

Step-by-step explanation:

   Adult ticket:   x

Student ticket:  y

x + y = 260                  ===>   -6(x + y = 260)     ===>  -6x -6y = -1560

6x + 4.5y = 1404         ===>                                           6x + 4.5y = 1404

                                                                                  ________________

add the two equations to eliminate a variable:                  -1.5y = -156

divide by -1.5:                                                                              y = 104

substitution to find x:

      x + y = 260

  x + 104 = 260

            x = 156

5 0
2 years ago
Add 6 to the quotient of j and k
BARSIC [14]

Answer:

     j/k + 6

Step-by-step explanation:

Add 6 to the quotient of j and k comes out to:

                                  j/k + 6

4 0
3 years ago
A) all values at which h has a local maximum <br> B ) all local maximum values of h
Harlamova29_29 [7]

For the given function h(x), we have:

a) at x = -2 and x = 2.

b) y = 0 and y = 3.

<h3>How to identify the maximums of function h(x)?</h3>

First, we want to get the values of x at which we have maximums. To do that, we need to see the value in the horizontal axis at where we have maximums.

By looking at the horizontal axis, we can see that the maximums are at:

x = -2 and at x = 2.

Now we want to get the maximum values, to do that, we need to look at the values in the vertical axis.

  • The first maximum value is at y = 0 (the one for x = -2)
  • The second maximum is at y = 3 (the one for x = 2).

If you want to learn more about maximums:

brainly.com/question/1938915

#SPJ1

4 0
2 years ago
What is the range? 6 7 8 7 10​
jeka94
Range= 4

Range is the highest number minus the lowest number, 10-6=4
4 0
2 years ago
Read 2 more answers
Other questions:
  • 0.28444 as a fraction
    10·2 answers
  • What is 45% in a fraction ?
    14·2 answers
  • Plz giving brainiest hurry fast plzz i beg
    9·1 answer
  • The radius of a cylindrical construction pipe is 3.5ft . If the pipe is 38ft long, what is its volume? Use the value 3.14 for (p
    8·1 answer
  • 208 rounded to the hundreds place
    11·1 answer
  • ( (-2) ^-3) ^2 Simplify and evaluate where necessary
    6·1 answer
  • What is the slope-intercept equation<br> for the following line?
    10·1 answer
  • PLEASE HELP
    9·1 answer
  • I need help with this question (answer choices 15, 5, and 12)
    13·1 answer
  • The Jetson family watched television for a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!