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Gnom [1K]
3 years ago
14

There were 81 people sitting in a school auditorium of which 1/9 were teachers, while the

Mathematics
2 answers:
astra-53 [7]3 years ago
5 0

Answer:

9 teachers

Step-by-step explanation:

81(1/9)=9

Masteriza [31]3 years ago
3 0

Answer:

9 Teachers

Step-by-step explanation:

81(1/9)=9 teachers in the auditorium.

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Find the inverse of each function. Is the inverse a function? f(x)=x⁷
Luda [366]

The inverse of the function x^7 is x^-7 and it is also a function.

An inverse function or an anti function is defined as a function, which can reverse into another function.

A standard method to find inverse of a function is to set y=f(x)

let y= f(x)=x^7

thus

\sqrt[7]{y}=x

thus f^{-1}(y)=\sqrt[7]{y}

thus f^{-1} (x)=\sqrt[7]{x}

(To verify this if a function is inverse or not we are required to check for the identity)

f(f^{-1}(x))=f^{-1}(f(x))=x

Therefore, The inverse of the function x^7 is x^-7 and it is also a function.

For further reference:

brainly.com/question/2541698?referrer=searchResults

#SPJ4

3 0
2 years ago
11. A spinner is divided into 12 equal sections. Five of the sections are labeled with
Licemer1 [7]

Answer:

Probability of spinning an odd number = 1/3

Step-by-step explanation:

4 odd out of 12 sections

Probability of spinning an odd number = 4/12 = 1/3

7 0
3 years ago
The radius of a circle is 7 cm. Find its area in terms of \piπ.
EleoNora [17]

Answer:

153.94cm²

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
1 A lawnmower that regularly sells for $200 is on sale for $85. Find the % of change that the price was decreased by ??? percent
Airida [17]

Answer:

The price changed by 92.5 %

Step-by-step explanation:

The regular price of lawn mover = 200 dollars

The new selling price = 85 dollars

Change in selling price = 200 -85 dollars = 115 dollars

% change == \frac{185}{200} * 100 = 92.5

The price changed by 92.5 %

4 0
3 years ago
Tom has 7 more silver dollars than Jimmy. Together they have a total of 71 silver dollars. How many silver dollars does Tom have
Eddi Din [679]
Tom has 39 silver dollars. You can do this on your head. Jimmy has 32, and Tom 39.
4 0
3 years ago
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