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GaryK [48]
3 years ago
11

The correct answer to this it’s my last question

Mathematics
2 answers:
IRISSAK [1]3 years ago
6 0
Answer: The last one
V125BC [204]3 years ago
3 0

Answer:

<h2>the last Opinion is your answer.</h2>

9.8 \times 10 { -}^{3}

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Evaluate. Write your answer as a decimal.<br><br> 6.59+(−7.8)−(−2.41)=
larisa86 [58]

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1,2

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6,59-7,8+2,41=1,2

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1/2 minus 1/6 equals.
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1/3

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Determine if the following conclusion is valid. Why or why not?
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The first option

Step-by-step explanation:

It is biased as her friends are all more likely to go considering how involved she is with it.

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A piece of wire 23 m long is cut into two pieces. One piece is bent into a square and the other is bent into an equilateral tria
AURORKA [14]

Answer:

For maximum area, all of the wire should be used to construct the square.

The minimum total area is obtained when length of the wire is 10m

Step-by-step explanation:

For maximum,  we use the whole length

For minimum,

supposed the x length was used for the square,

the length of the side of the square = x/4m

Area = \frac{x^{2} }{16}

For the equilateral triangle, the length of the side =  \frac{23 - x}{3}

Area = \frac{\sqrt{3} }{4}  a^{2}  = \frac{\sqrt{3} }{4} (\frac{23 - x}{3} )^{2}

Total Area = \frac{x^{2} }{16}  + \frac{\sqrt{3} }{36} (23-x)^{2}

\frac{dA}{dx}  = \frac{x}{8}  -  \frac{\sqrt{3} }{18} (23 - x)\\

\frac{d^{2}A }{dx^{2} }  = \frac{1}{8}  + \frac{\sqrt{3} }{18}  > 0, therefore it is minimum

\frac{dA}{dx}  = 0 \\\\

\frac{x}{8}  -  \frac{\sqrt{3} }{18} (23 - x) = 0\\

x = 10.00m

3 0
3 years ago
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Please im begging you 100 points!!!! Please explain both answers and I will mark brainliest!!
melomori [17]

Answer:

choice 4

triangle ABC is congruent to triangle DCB because of the Side-Side-Side congruency theorem

Step-by-step explanation:

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