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umka21 [38]
2 years ago
14

1)Set A ={ 1, 3, 5, 7, 9} and Set B = {x | x is a positive odd integer less than 10}. What is A intersection B?

Mathematics
1 answer:
zhenek [66]2 years ago
7 0

Answer:

see below

Step-by-step explanation:

1)

set A is already a set of positive odd numbers below 10 so the intersection of the sets is simply {1,3,5,7,9}

2)

this ask, what do sets A,B, and C have in common?

every set has yellow and green so the intersection is

{yellow, green}

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musickatia [10]

Answer:

the answer is B

(6,3)

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8 0
2 years ago
Consider the region bounded by 4y=x^2 and 2y=x.
gayaneshka [121]

Answer:

a) ⅓ units²

b) 4/15 pi units³

c) 2/3 pi units³

Step-by-step explanation:

4y = x²

2y = x

4y = (2y)²

4y = 4y²

4y² - 4y = 0

y(y-1) = 0

y = 0, 1

x = 0, 2

Area

Integrate: x²/4 - x/2

From 0 to 2

(x³/12 - x²/4)

(8/12 - 4/4) - 0

= -⅓

Area = ⅓

Volume:

Squares and then integrate

Integrate: [x²/4]² - [x/2]²

Integrate: x⁴/16 - x²/4

x⁵/80 - x³/12

Limits 0 to 2

(2⁵/80 - 2³/12) - 0

-4/15

Volume = 4/15 pi

About the x-axis

x² = 4y

x² = 4y²

Integrate the difference

Integrate: 4y² - 4y

4y³/3 - 2y²

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(4/3 - 2) - 0

-2/3

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7 0
3 years ago
Brett painted three walls. Each wall was 9 ft tall and 12 ft long. How much wall area did he paint
julsineya [31]

Answer:

First we need to calculate the are of each wall, since we alredy knew the length (l) and the width (w) which is the height of the wall in this case:

A = wl = 9 . 12 = 108 (ft²)

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8 0
3 years ago
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Anarel [89]

Answer:

Step-by-step explanation:

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The good thing is that several of those terms cancel each other out.  +5ix cancels out the -5ix; -5i cancels out the 5i; and the 2 -x terms combine to -2x.  That leaves you with:

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Fiesta28 [93]

Answer:

Step-by-step explanation:

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8 0
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