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Sophie [7]
3 years ago
8

Why are inverse operations and

Mathematics
1 answer:
icang [17]3 years ago
6 0

Answer:

An inverse operation is two operations that undo each other e.g. addition and subtraction or multiplication and division. You can perform the same inverse operation on each side of an equivalent equation without changing the equality. This gives us a couple of properties that hold true for all equations.

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6 boys and 6 girls attend a birthday party and play pin the tail on the donkey. how many different arrangements of first, second
Natali5045456 [20]
Given that there are <span>6 boys and 6 girls in a birthday party, the number of different arrangements of</span><span> first, second, and third is given by:

^{12}P_3= \frac{12!}{(12-3)!}  \\  \\ = \frac{12!}{9!} = \frac{12\times11\times10\times9!}{9!}  \\  \\ =12\times11\times10=1,320</span>
7 0
3 years ago
Jones Street is parallel to Lincoln Street, and both streets are intersected by Elm Street and Avenue A. Jones Street J 105° m E
kvv77 [185]

We have:

Alternate angles are equal in measure, therefore:

\angle E=105^{\circ}

Then, The angles E, JEA and 32° add up to 180° because they form a straight angle. So:

\begin{gathered} 105+\angle JEA+32=180 \\ 137+\angle JEA=180 \\ 137+\angle JEA-137=180-137 \\ \angle JEA=43 \end{gathered}

Answer: 43°

4 0
2 years ago
the hypotenuse of a 45-45-90 triangle has a length of 10 units. what is the length of one of its legs?
SIZIF [17.4K]
When a triangle is a 45-45-90 triangle, the following rules apply:

-the 2 legs are equal lengths
- the length of the hypotenuse is: the square root of 2 x the length of a leg.
- the length of the leg is: hypotenuse divided by the square root of 2.

if the hypotenuse is 10, then 10 divided by the square root of 2 is how you find the leg.
the square root of 2 is <span>1.41421356237. 
10 divided by </span>1.41421356237 is <span>7.07106781188, which can be rounded to about 7.1. The length of one leg is about 7.1 units!</span>
6 0
3 years ago
Evaluation problem please help
Darya [45]
Ok so what you want to do is multiply 2 tines 4 which is 8 then multiply 723 8 times into the calculator or just press the button next to the button on the left 8 times ok then do that again for 723^5 power so whatever product you get for the both of them multiply them then divide whatever product you get on to top to the bottom  oops sorry that is the long way so basically 4 times 2 is 8 now that plus 5 = 13 so now on the top half we have 723^13  and on the bottom it is the same thing so divide your answer is 1
7 0
4 years ago
Help help help help help help help help help
sergij07 [2.7K]

Answer:

21f

Step-by-step explanation:

5f+16f

(5+16)f

21f

4 0
4 years ago
Read 2 more answers
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