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EastWind [94]
2 years ago
10

Simplify the following expression(x+y)²​

Mathematics
1 answer:
MrMuchimi2 years ago
8 0

Answer:

{x}^{2}  + 2xy +  {y}^{2}

Step-by-step explanation:

1) Use square sum: (a + b)² = a² + 2ab + b².

{x}^{2}  + 2xy + y^{2}

<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>x</u><u>²</u><u> </u><u>+</u><u> </u><u>2xy</u><u> </u><u>+</u><u> </u><u>y</u><u>²</u>.

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A test has 20 question if peter gets 80% correct, how many question did peter miss
AlexFokin [52]

Answer:

16 questions right = 80%

So Peter missed 4 questions.

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6 0
3 years ago
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Which logarithmic equation is equivalent to the exponential equation below?
anzhelika [568]

Answer:

log_e^{67.21}= a

Step-by-step explanation:

The equation is ,

\implies 67.21 = e^a

  • Here e is the Euler's Number . The log which are defined on the base e are called Natural logarithms.

Say if we have a expoteintial equation ,

\implies a^m = n

In logarithmic form it is ,

\implies log_a^n = m

Similarly our required answer will be ,

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3 0
3 years ago
Round 299 to the nearest hundred. Enter your answer in the box below.
Troyanec [42]

Answer:

300

Step-by-step explanation:

hundreds  tens  ones

2                   9      9

We look at the tens

It is 5 or higher so we round up the hundreds place

2 becomes 3

300

7 0
3 years ago
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If ad=30 and dc=30 what is the length of bd
DerKrebs [107]

BD =√30 +√30

BD = 2√30

Here you go

7 0
2 years ago
Can someone help me with this question please.
ozzi

Answer:

x=88° a=+3 b=4a-3

Step-by-step explanation:

as triangles ADE and BCE are congruent by sss axiom

so correponding angles are equal

i.e<AED = <BEC

and <DAE =90-60

=30°

so

62°+x+30°=180°

therefore x=88°

5 0
3 years ago
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