2 years ago

Expand and simplify (x-5)(x+5)

Mathematics

1 answer:

BigorU [14]2 years ago

4 0

The answer is X^2 - 25 click on the box for more details or explain.

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Marat540 [252]

Answer: 3rd one
Rearrange the original equation so it fits the model of : ax^2+bx+c=0
Then use the quadratic formula to find all possible answers.

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2 years ago

Security fence encloses a rectangular area on one side of a park in a city. three sides of fencing are used, since the fourth s

LiRa [457]

Hi,
Let assume a the width and b the length of the rectangular area.
$\left \{ {{2a+b=116} \atop {a*b=1682}} \right. \\\\

 \left \{ {{b=116-2a} \atop {a*(116-2a)=1682}} \right. \\\\

 \left \{ {{b=116-2a} \atop {a^2-58a+841=0}} \right. \\\\

 \left \{ {{b=116-2a} \atop {(a-29)^2=0}} \right. \\\\

 \left \{ {{a=29} \atop {b=116-2*29}} \right. \\\\

 \left \{ {{a=29} \atop {b=58}} \right. \\\\






$

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3 years ago

Please help. please

Makovka662 [10]

The Jasmine result is the good one because 1 mégas meter=1 000 000

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2 years ago

A sandwich shop offers 4 different meats and 2 different cheeses. Suppose the sandwich shop offers 24 different meat-cheese sand

Sergio039 [100]

Answer:

Step-by-step explanation:

You would do this question like this.

4 meats * 2 cheeses * x breads = 24 different kinds of sandwiches.

8x = 24

8x/8 = 24/8

x = 3

There are 3 different kinds of breads.

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2 years ago

Lucy had $72 which is 9 times more than Xavier had

WINSTONCH [101]

Answer:

multiply 72 times 9

Step-by-step explanation: 648

6 0

2 years ago

Read 2 more answers