3 years ago

How many subsets does the set A={1,2,{1},{{1}},{2},{1,2}} have

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

8 0

Answer:

it consist of five subset

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from a window 24 feet above the ground, the angle of elevation to the top of another building is 38 degrees. The distance betwee

Delvig [45]

Answer:

The height of the building is $73.2\ ft$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

In the right triangle ABC

$tan(38\°)=\frac{BC}{AB}$

we have

$AB=63\ ft$

substitute and solve for BC

$tan(38\°)=\frac{BC}{63}$

$BC=(63)tan(38\°)=49.2\ ft$

Find the height of the building

The height of the building (h) is equal to

$h=BC+24=49.2+24=73.2\ ft$

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3 years ago

How many ounces are in 31/2 pounds and 2 ounces

Cloud [144]

I believe it’s 250 ounces

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3 years ago

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coldgirl [10]

I’m sorry, I don’t know perpendicular but I would love to help.

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What does a equal<br> a/6 = 15/2

OlgaM077 [116]

Answer:

a = 45

Step-by-step explanation:

Cross multiply: 2a =90

Divide both sides by 2: 45

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3 years ago

Here is a list of numbers:<br> 79, 38, 99, 10, 8, 4, 85, 74, 13<br> Calculate the range.

ivanzaharov [21]

Answer:

Range is 95.

Step-by-step explanation:

Highest value - lowest value = range.

99 - 4 = 95

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2 years ago