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kifflom [539]
3 years ago
8

PLEASE HELP

Mathematics
1 answer:
jeka943 years ago
4 0

Let us try A

If we put x = -3 , then y= 27-36+3+1=-5 , thus it us not the polynomial of given points

Now moving onto B

If x = -3, then y =-81-27+36-3-1=76

If x= -1 , then y=-1-1+4-1-1=0

If x =0, then y=-0-0+0-0-1=-1

If x =1, then y= -1+1+4+1-1=4

Thus it is also not the polynomial with given point.

Now onto c

x= -3 , y=81+27-36+3+1=76

x=0, y = 0+0+0+0+1=1

x= -1 , y = 1+1-4+1+1=0

x=1 , y= 1-1-4-1+1=-4

x=2, y=16-8-16-2+1=-9

Hence C is the polynomial of given points

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What is the value of s and the length of side BC if ABCD is a rhombus?
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answer

s=45 units

bc=434 units

explanation

Find the value of s

In a Rhombus all sides are congruent so

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AB=9s+29

CD=10s−16

equate AB and CD

9s+29=10s−16

Combine like term

10s−9s=29+16

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the value of s is 45 units

Find the value of side AB

AB=9s+29AB=9s+29

substitute the value of s

AB=9*45+29=434 units

Remember that the sides are congruent

AB=BC=CD=DA

therefore

The length of the side BC is 434 units

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