alan drew a polygon with four sides and four angle. All four sides are equal. None of the angle are right angle. What figure did alan draw?

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Answer 1
Answer: Alan drew a quadrilateral that is a parallelogram and a rhombus.

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Daniel is three years older than twice his brother's age. Daniel is 17. Fill in the box with the expression that represents the age of Daniel's brother. Let b represent Daniel's brother's age.

Answers

Daniel's age is X
Daniel's brother age is Y

X = 3 + ( 2Y )

Y = ( X - 3 ) / 2

In case of Daniel is 17

then his brother's age is = ( 17 - 3 ) / 2 = 7 years

If you flip a fair coin 7 times, what is the probability that you will get exactly 4 tails?

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Answer:

35/128

Step-by-step explanation:

khan

Answer:50%

Step-by-step explanation:

I really need help please

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C=2√\piA

Where A= area

C=25.13



PEASE HELP ME!!!
5
∑x+1
x=1

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The expanded form of this sigma notation is:
1+1+2+1+3+1+4+1+5+1=20
The answer to your question is 20
1+1+1+1++1+1+2+3+4+5=20
The answer to your question is 20

What is 0.42,3.47 and 3.74 in order from least to greatest

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the answer 0.42, 3.47, 3.74
I think that the answer is 0.42, 3.47, 3.74

What is 54/100 ins simplest form and 72/100, 90/100?

Answers

In 54/100, 2 is the only common factor.  Dividing 54 and 100 both by 2, we get 27/50.  This is the simplest form of 54/100.  Note that 54/100=0.54.

In 90/100, 10 is the only common factor.  Divide both 90 and 100 by 10.  We get 9/10.  That's the simplest form.
Do you still want it as a fraction or a decimal?
 If you want it as a fraction:
54/100= 27/50
72/100=36/50=18/25
90/100=45/50
In decimals:
54/100=0.54
72/100=0.72
90/100=0.90