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Stolb23 [73]
3 years ago
13

A. 5 × (-4)2 – (-3)2 please help

Mathematics
1 answer:
Lerok [7]3 years ago
5 0

5* (-4)*2 – (-3)*2

Follow the PEMDAS orders of operation:

Multiply and divide (left to right):

5*(-4)*2 = -40

=-40 -(-3)*2

Multiply and divide (left to right):

(-3) *2 = -6

-40 - (-6)

Add and subtract (left to right):

-40 - (-6) = -34

Your Answer Is -34

plz mark me as brainliest :)

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( 0 < y < 23 / 6 ) mins

Step-by-step explanation:

Solution:-

We will define a variable ( x ) as the time it took for Jo Anne to give her speech at home.

The time taken to give her speech must always be less than 4 minutes. We can express this mathematically using an inequality as follows:

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Jo Anne gave her speech which was 10 seconds less than the one she practised at home. We will convert the time in seconds to minutes as follows:

                             10 s * \frac{min}{60 s}  = \frac{1}{6} min

The time taken by Jo Anne to complete her speech in English class can be represented as:

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Using the range of time that Jo Anne could take in delivering her speech in the class would be:

                                    0 < x < 4

                            0 - 1/6 < y < 4 - 1/6

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Since time can not be less than zero. We correct the lower limit to " 0 " as follows:

                              ( 0 < y < 23 / 6 ) mins

   

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