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inna [77]
3 years ago
8

Q2.

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
7 0

Answer:

see below

Step-by-step explanation:

A = {8, 9, 10, 11, 12, 13, 14} and   B = {2, 4, 6, 8, 10, 12, 14, 16, 18}

----------------

(i) List down the elements of A’ and B’

{8, 9, 10, 11, 12, 13, 14, 2, 4, 6, 8, 10, 12, 14, 16, 18} - this is the elements of both sets

----------

(ii) Are sets A - B and B - A equal sets?

A-B= {9, 11, 13}

B-A= {2, 4, 6, 16, 18}

These are not equal as we can see

----------

(iii) Find and compare the sets (AUB)’ and A’∩B’ and share your observations

A∪B= {2, 4, 6, 8, 9, 10, 11, 12, 13, 14, 16, 18}- union included all elements of both sets

A∩B= {8, 10, 12, 14} - intersection only includes common elements

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PIT_PIT [208]

Answer:

length/width = 1/1 = 1

Step-by-step explanation:

(3x)(2x) = 12150

6x^2 = 12150

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Length is 135 ft, width is 90 ft, perimeter is 450 ft

Geometric mean: 135 : x :: x : 90

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x = 45√6

The second rectangular piece of land is a square !

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Answer:

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Step-by-step explanation:

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Han, his sister, his dad, and his grandmother step onto a crowded bus with only 3 open seats for a 42-minute ride. They decide H
aivan3 [116]

Answer:

Han= 24 minutes

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His Dad= 36 minutes

Grandmother= 42 minutes

Step-by-step explanation:

Please see attached picture for full solution.

Where the working split, see the right hand side.

The question states that Han's Dad sits 1.5 times as long as both Han and his sister. There could be 2 interpretations for this:

- Dad sits for 1.5 times of (Han and his sister)

- Dad sits for 1.5 times of Han and 1.5 times of Han's sister

I've done the working for both scenarios and found out that the 1st case cannot be true since Dad would've sat for 50.4 minutes when the bus ride is only 42 minutes! Moreover, there wouldn't be enough information to know how long Han and his sister sat for.

The second case is possible and it's working is on the right.

Feel free to ask if you have any enquiries :)

3 0
3 years ago
-4=g+1<br> A. g=-4<br> B. g=4<br> C. g=-5<br> D. g=-3
statuscvo [17]
C. g=-5 is the correct answer 

6 0
3 years ago
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