Estimate the quotient 57.8 ÷81

Mathematics

1 answer:

natita [175]2 years ago

8 0

An estimation of 0.7
though the actual answer is 0.713580247

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wel

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Why might the triangulation method not always produce an exact point (other than any measurement errors)

Rufina [12.5K]

Answer:

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The method uses different data sources, researchers, and theories or perspectives.

Step-by-step explanation:

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2 years ago

Given CS=2x+1, SB=6x, CR=7.5, and RA=18. What must the value of x be in order to prove SR || BA? Justify your answer

dangina [55]

The picture in the attached figure

we know that
In similar triangles. The ratio of the lengths of the sides CS and CB must be equal to the ratio of the lengths of sides CR and CA. CS / CB = CR / CA
which can also be written as,
CS / (CS + SB) = CR / (CR + RA)
CS*(CR+RA)=CR*(CS+RA)
CS=2x+1
SB=6x
CR=7.5
RA=18
(2x+1)*[7.5+18]=7.5*[2x+1+18]
(2x+1)*[25.5]=7.5*[2x+19]
(51x+25.5)=15x+142.5
51x-15x=142.5-25.5
36x=117
x=117/36
x=3.25

the answer is
x=3.25