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weeeeeb [17]
3 years ago
12

If AD = 18.02 cm and AB= 20 cm, calculate the length of AC

Mathematics
1 answer:
Viktor [21]3 years ago
5 0

Answer:

22.2 cm

Step-by-step explanation:

AB^2 = (AD)(AC)

20^2 = (18.02)(AC)

400 = 18.02(AC)

AC = 22.2

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Select the equation that contains the point (-5, 2) and in which the slope equals 1/2
Vaselesa [24]

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2 years ago
Need some help with this question in the image<br><br>Cheers​
iren [92.7K]

Step-by-step explanation:

a) 24.7×52.3=1291.81

On rounding off to 3 significant digits we get

1290

b)

\sqrt{ {42}^{2} -  {28}^{2}  }

\sqrt{1764 -784 }  =  \sqrt{980}

=31.304951

On rounding off to 5 significant figures we get

=31.305

c)

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On rounding off to 2 significant figures we get

=4.3

Hence required answers

a)1290

b)31.305

c)4.3

I hope it helped you

5 0
1 year ago
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