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
kramer
3 years ago
10

81^1/2 / 3^-1 = A. 9 B. 3 C.(81/3)^-1/2 D. 27

Mathematics
2 answers:
Vinvika [58]3 years ago
8 0

Answer:C

Step-by-step explanation:

81^½÷3^-1=√81÷(1/3)

=9÷3=3

OlgaM077 [116]3 years ago
8 0
The answer is D.

When something is set to a fraction of a power, it makes the base a square root. And since 81 is going to the power of 1/2 it is just squaring it. The square root of 81 is 9.

Next, anything to a negative power turns the base number into a fraction, so 3^-1 turns into 1/3^1 or 1/3.

Finally, you solve: 9/ 1/3. Fractions take the reciprocal of themselves when they are being divided so the equation is more like 9*3. And 9*3 is 27. So the answer is D, 27.

Hope this helps!
You might be interested in
Use a calculator to approximate the measure of
OLEGan [10]

Answer:

64

Step-by-step explanation:

I did 90-26 I hope that’s what you’re looking for :))

7 0
3 years ago
The triangles are similar. What is the value of x? Enter your answer in the box. x =
notsponge [240]

Answer:

Value of x is used to consider unknown value. The letter “x” is commonly used in algebra to indicate an unknown value. It is referred to as a “variable” or, in some cases, a “unknown.” In x + 2 = 7, x is a variable. ... A variable need not be “x,” but might be “y,” "w," or any other letter, name, or symbol.

6 0
3 years ago
Name two characteristics of a pair of parallel lines.
valentina_108 [34]

Answer:

they never meets...

they points the same direction

Step-by-step explanation:

thats all i can think off

6 0
3 years ago
Describe the symmetry of the figure. Identify lines of symmetry, if any. Find the angle and the order of any rotational symmetry
Sophie [7]

Answer:

see below

Step-by-step explanation:

Clearly, if you turn the figure sideways or upside down (rotate 90° or 180°), you do not have the same figure. It has no rotational symmetry.

However, if you reverse it left-to-right, you get exactly the same figure. So, it has line symmetry about a vertical center line.

5 0
3 years ago
HEWP PWS<br> :c<br> I don’t know da answer x.x
Oksi-84 [34.3K]

Answer:

(I think its C sorry if i get you wrong)

(Hope this helps)

8 0
3 years ago
Read 2 more answers
Other questions:
  • 4. Factor completely.<br> 8y?- 50
    14·1 answer
  • 25° decreased by 60%
    13·1 answer
  • Find the distance points p (3,6) and q (7,3) to the nearest tenth?
    13·2 answers
  • What is 427 thousand in scientific notation
    13·1 answer
  • How would the expression(x^2+4) (y^2+4) be rewritten using two squares?
    12·2 answers
  • In a food manufacturing company, the decision to reorder raw materials when inventories drop to a certain level is an example of
    9·1 answer
  • Aleka and Helene both opened savings accounts that earn 2.5% interest a year. Aleka puts $2,500 into her account. Helene put $1,
    7·1 answer
  • I need help with this one??
    8·1 answer
  • What is 2+2
    11·1 answer
  • Sherry is a waitress at a country club restaurant. She receives an automatic 15% tip which is added to the member's check for th
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!