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
jasenka [17]
3 years ago
12

If a/\2+1/a/\2=11, then a+1/a=?

Mathematics
1 answer:
Nadya [2.5K]3 years ago
5 0

Answer:

\pm \sqrt{13}

Step-by-step explanation:

\bigg(a +  \frac{1}{a}  \bigg)^{2} =  {a}^{2}   +  \frac{1}{ {a}^{2} }  + 2 \times a \times  \frac{1}{a}  \\  \\ \bigg(a +  \frac{1}{a}  \bigg)^{2} = 11 + 2 \\  \\   \bigg(a +  \frac{1}{a}  \bigg)^{2} = 13 \\  \\  \bigg(a +  \frac{1}{a}  \bigg) =  \pm \sqrt{13}

You might be interested in
(8x + 9) + (15 - 8x)
Ilia_Sergeevich [38]
8x +9 + 15-8x is -32 it’s that easy
5 0
2 years ago
malia has a recipe for a cake that requires her to use 8 tablespoons of flour but can only find a teaspoon measure in her kitche
Kipish [7]

Answer:

24 Teaspoons

Step-by-step explanation:

If 1 Tablespoon equals 3 Teaspoons, then we can make the equation 3(8)=24.

We can factor out the 1 Tablespoon for 8 and multiply to reach our answer.

1 = 3

8 = ?

8 x 3 = 24

24/1 = 24

? = 24

Thanks,

Greg

4 0
3 years ago
Read 2 more answers
Hi pls help thank you
miss Akunina [59]

Answer:

it would be c when fully simplified.

6 0
3 years ago
Read 2 more answers
Help please quick! i need to find all the missing angles and side
Molodets [167]

Answer:

I think the answer is 73.

Step-by-step explanation:

did it state the volume?

wait its a right angle, so its 90 degrees?

8 0
2 years ago
Which figure shows the correct dimensions of 2/5 scale drawing of the given figure?
kap26 [50]

Answer:

A=40

Step-by-step explanation:

If A=100 and we need 2/5 the scale then all we do is divide 100 by five and multiply it by two giving us 40

8 0
3 years ago
Other questions:
  • What is the surface area of the following rectangular prism? Express your answer in square millimeters.
    12·2 answers
  • One number is seven more than a second number. Twice the first is 2 less than 3 times the second. Find the numbers.
    10·1 answer
  • The statue of Liberty stands on a 150 ft. pedestal. From a point 250 ft. from the base of the
    15·1 answer
  • What is the measure, in degrees, of angle z?
    14·1 answer
  • A group of friends wants to go to the amusement park. They have
    7·1 answer
  • Signment: Exit Tickets---8.4 Lesson 15 (8.EE.8.6)
    11·1 answer
  • Isaac invested $77,000 in an account paying an interest rate of 4.6% compounded continuously. Assuming no deposits or withdrawal
    5·2 answers
  • The length of a rectangle is 3 in longer than its width.
    5·2 answers
  • HELP ME FIND X AND Y: 2x = 4y + 6 and 3x - y = -1
    14·2 answers
  • Help asap please geometry
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!