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Kruka [31]
3 years ago
7

Find the complement of the set given that

Mathematics
1 answer:
iris [78.8K]3 years ago
4 0

Answer:

A ' = {-2,-1,0,1, 4,7}

Step-by-step explanation:

Here, the Universal set U is given as:

U = {x | x is in I and −3 ≤ x ≤ 7}

⇒ U = { -3,-2,-1,0,1,2,3,4,5,6,7}

Now given: A = {−3, 2, 3, 5, 6}

Compliment  A set of any set A is the set of all the elements which is in the universal set U but NOT in A.

So, here the set of elements which are in U but not in A  is

A ' = {-2,-1,0,1, 4,7}

So here the elements in the compliment of the given set -2,-1,0,1,4,7

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Part 1: Writing Expressions
Eddi Din [679]

Answer:

3(7j + 2 + 4j)

Step-by-step explanation:

We have to write an expression that looks like Sarah’s expression: 5(2j + 3 + j). We habr Replace the coefficients so that our expression is not equivalent. Also We may use any number that we choose to replace the coefficients ensuring to leave the variables the same.

Example, 3(7j + 2 + 4j) looks like Sarah’s expression but is not equivalent.

6 0
3 years ago
Please help me…………….
valina [46]

9514 1404 393

Answer:

  54.8 km

Step-by-step explanation:

The sketch and the applicable trig laws cannot be completed until we understand what the question is.

<u>Given</u>:

  two boats travel for 3 hours at constant speeds of 22 and 29 km/h from a common point, their straight-line paths separated by an angle of 39°

<u>Find</u>:

  the distance between the boats after 3 hours, to the nearest 10th km

<u>Solution</u>:

A diagram of the scenario is attached. The number next to each line is the distance it represents in km.

The distance (c) from B1 to B2 can be found using the law of cosines. We can use the formula ...

  c² = a² +b² -2ab·cos(C)

where 'a' and 'b' are the distances from the dock to boat 1 and boat 2, respectively, and C is the angle between their paths as measured at the dock.

The distance of each boat from the dock is its speed in km/h multiplied by the travel time, 3 h.

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  c ≈ √3000.2558 ≈ 54.77

The boats are about 54.8 km apart after 3 hours.

7 0
3 years ago
Graph the first six terms of a sequence where a1 = -10 and d = 3.
ohaa [14]

Answer:

It's A.

Source: I took the test

4 0
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BartSMP [9]

Answer:A

Step-by-step explanation:

4 0
3 years ago
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A man earns$140 in 5 day week. What is his pay for 3 days?​
Flura [38]

Answer:

$84

Step-by-step explanation:

Do 3/5*140 which will give you 84 dollars

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3 years ago
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