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
ladessa [460]
3 years ago
7

Two numbers, 3 and a, have a geometric mean of 9. Find the value of a.

Mathematics
1 answer:
Ket [755]3 years ago
4 0
The geometric mean of two numbers x and y is √(xy).

So, if the geometric mean of 3 and a is 9 =>

9 = √(3a)

=> 9^2 = 3a

=> a = 9^2 / 3

a = 81 / 3

a = 27

Answer: the value of a is 27.
You might be interested in
An object on the moon weighs about 0.17 of what it would weigh on earth.
Ivahew [28]
The answer would be E.

All you have to do is multiply 185 by 0.17 and you get your answer, which would be E.
3 0
2 years ago
Read 2 more answers
Part A: Larry earned $11 walking his neighbors' dogs on Saturday. He earned some extra money on Sunday doing the same thing. Wri
djyliett [7]
So for part a the answer with be 11/6
Why 6 because count the weeks that wil be 6 so Monday Tuesday Wednesday thursaday and Friday then comes Saturday
3 0
3 years ago
Read 2 more answers
What is 0.987 tenths?
almond37 [142]

Answer:

0.0987

Step-by-step explanation:

6 0
2 years ago
The graph below shows Roy's distance from his office (y), in miles, after a certain amount of time (x), in minutes: Graph titled
Marina CMI [18]

Answer:

Felix

Step-by-step explanation:

The graph contains 3 segments,

first one is for the first 4minutes,

second one is for the next 2 minutes (standing still)

third one is for the last 2 minutes.

Only Felix has it right, the other students use absolute time in their statements, in stead of the difference between start and end. (e.g., from 4 to 6 is 2 minutes).

8 0
3 years ago
3/4 divided by 2 and 1/2??? Plssss thank youuu.
natita [175]

Answer:

3/4 divided by 2 1/2 is 0.3

7 0
2 years ago
Other questions:
  • If all marbles in a bag are red, and all red marbles weigh 3oz, then all 3oz marbles are red. true or false?
    12·2 answers
  • What is tan 30°?<br> 60*<br> 2<br> /<br> 90*<br> 30*<br> с<br> оооооо
    12·1 answer
  • A cylinder shaped can needs to be constructed to hold 500 cubic centimeters of soup. The material for the sides of the can costs
    5·1 answer
  • Help mee plsss &amp; thank youu
    11·2 answers
  • I can't solve this I need help??? ​
    8·2 answers
  • Duane bought 3.8 pounds of bananas for $.55 per pound.<br> How much did he spend in dollars?
    13·1 answer
  • . Which of the following is the correct algebraic representation of the translation below?
    15·1 answer
  • -<br> Which table represents y as a function of x?<br> ~" M'L help
    15·1 answer
  • If is an angle in standard position and
    10·1 answer
  • Round your answer to the nearest hundredth.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!