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
mylen [45]
3 years ago
11

Select the equivalent expression.

Mathematics
1 answer:
ANEK [815]3 years ago
5 0

Answer:

c

Step-by-step explanation:

\frac{1}{9^{2} }=1/81

9^{\frac{1}{2} } =3

\frac{1^{2} }{9}=\frac{1}{9}

9^{-2}=1/81

You might be interested in
Geometry question. please help ​
Vinvika [58]

Answer:

The length of PQ is <u>18</u> feet.

The length of PR is <u>18</u> feet.

The length of QR is <u>24</u> feet.

Step-by-step explanation:

A way to set an equation up for this problem is:

\frac{4}{3}x+x+x=60

where x is the three lengths of the isosceles triangle, but the base QR is 4/3 the length of the other two congruent sides, length PQ and PR. The 60 represents the total length of the perimeter.

Then, solve for x from the equation, and you’ll get x=18. But your not done yet. Since the variable x in the equation stands for the sides of the isosceles triangle, so plug 18 into the equation and it should look like this:

\frac{4}{3}(18)+18+18=60

Don’t solve the whole equation, just solve the \frac{4}{3}(18) part of the equation, which is equal to 24. So the final equation is this:

24+18+18=60

Conclusion: 24 is the length of QR, and 18 is the length of PQ and PR. And they all equal 60, which is the perimeter. This is very true because the length of PQ and PR are the same (length 18), since it’s an isosceles triangle, and the length of QR is 4/3 the length of PQ and PR (4/3 of 18= 24).

Sorry for the long explanation.

But hope this helps and answers your question :)

8 0
3 years ago
The average depth of the ocean is about 3.8 km.width of 7600 km. calculate the ratio depth:width?
Gnoma [55]
A ratio is like a fraction, so since you are provided with the numbers its easy to put it into a ratio 
depth is 3.8km
width is 7600km
ratio is 3.8:7600
5 0
3 years ago
Write the ordered pair for the point Q.
Monica [59]
(3.5, 1.5) are the coordinates

hope this helps
8 0
3 years ago
Read 2 more answers
A restaurant advertises 256 types of nachos. how many topping ingredients must be available
Karolina [17]
Well, this depends on the number of topping ingredients you have for each serving of nachos. The general solution will be simply to add all the topping ingredients for each type. Assuming there is an average of 7 topping ingredients for every type, namely: cheese<span>, fried beans, sour cream, onions, jalapeños, salsa, and guacamole. Hence,

Topping Ingredients = 7*256 = 1,792</span>
3 0
3 years ago
What is the definition of a function?
bixtya [17]

Answer:

B. A one-to-one relation between x and y

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Which of the following equations best represents the graph of a function f(m)?
    6·1 answer
  • If r is five less than three times l, then r = A)3l - 5 B)5 - 3l C)5l - 3 D)3(l - 5)
    13·2 answers
  • Help!!!!!!!<br>in trouble
    5·1 answer
  • The volume of a sphere is 3,000 cm3. Find radius then figure what is the surface area of the sphere. Find the radius of the sphe
    12·2 answers
  • Distance between (-5,-6) and (5,6)
    8·1 answer
  • Megan paid $2.52 in sales tax on an item that cost $36.00 before tax. At that rate, how much would she pay in sales tax for an i
    12·1 answer
  • Georgie borrows £12000 for a luxury cruise
    7·1 answer
  • PLEAS EHELP ME WITH THIS QUESTION IN THE NEXT MINUTE
    12·2 answers
  • On Saturday Kai gave his guinea pig 80 grams of the food. The table shows the amount of each type of food he gave to the guinea
    11·2 answers
  • The answer to this question
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!