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saul85 [17]
3 years ago
13

Please help i will give out brainliest

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
4 0

Answer:

a.  L.B. = 20.5

b.  U.B. = 21.5

Step-by-step explanation:

Length is measured 21 cm correct to 2 significant figures

a.  Lower bound of 21

  =  20.5 < 21

  = 20.5

b. Upper bound of 21

   = 21 < 21.5

   = 21.5

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Alex

Answer:

Last option.

Step-by-step explanation:

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3 0
3 years ago
Which of the following is not a tool that can be used in a true Geometric construction? a)Protractor b)Compass c)Straightedge
AleksAgata [21]

Answer:

A) Protractor

Step-by-step explanation:

In Mathematics, geometric constructions refers to the drawing of geometric shapes, lines and angles with the exclusive aid of a pencil, straightedge/ruler and a pair of compass.

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4 0
3 years ago
Read 2 more answers
(a) An angle measures 43 . What is the measure of its complement? (b) An angle measures 81 . What is the measure of its suppleme
vampirchik [111]
To solve the problem shown above, you must follow the proccedure shown below:

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2. Keeping the information above on mind, you have:
<span>
 (a) An angle measures 43 . What is the measure of its complement?

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 (b) An angle measures 81 . What is the measure of its supplement?
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7 0
3 years ago
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Leviafan [203]
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8 0
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sammy [17]

Answer: Given as,X=2 & Y=3,

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Step-by-step explanation:

7 0
2 years ago
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