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stiks02 [169]
3 years ago
8

Will mark brainliest

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
3 0

Answer:

38

Step-by-step explanation:

PQ = 4x - 2

MN = 10

PQ = MN

4(10) - 2

40 - 2

38

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A survey was conducted among 78 patients admitted to a hospital cardiac unit during a​ two-week period. The data of the survey a
serious [3.7K]

Sets and set operations are ways of organizing, classifying and obtaining information about objects according to the characteristics they possess, as objects generally have several characteristics, the same object can belong to several sets, an example is the subjects of a school , where students (objects) are classified according to the subject they study (set).

The <em>intersection</em> of sets is a new set consisting of those objects that simultaneously possess the characteristics of each intersected set, the intersection of two subjects will be those students who have both subjects enrolled.

The <em>union</em> of sets is a new set consisting of all the objects belonging to the united sets, the union of two subjects will be all students of both courses.

In this case there are three sets B, C and S of which we are given the following information:

Answer

n(BꓵSꓵC)=5

n(BꓵS)=10 – 5 = 5

n(BꓵC)=12 – 5 = 7

n[(BꓵC)ꓴ(BꓵS)ꓴ(CꓵS)]=21  – 5 – 5 – 7 = 4

n(B)=36 – 5 – 5 – 7 = 19

n(S)=30 – 5 – 5 – 4 = 16

n(C)=34 – 5 – 7 – 4 = 18

7 0
3 years ago
What is the length of segment BD
lisabon 2012 [21]

Answer:  The length of BD is 2.4

Step-by-step explanation:  BD is a leg of a right triangle, so use the

Pythagorean Theorem  a² + b² = c²  

BC is the hypotenuse here, so that is c = 3

We can use the segment CD as side b = 1.8

We will call BD side a, and solve to find that length.

a² + (1.8)² = 3²   Square the known values of b and c

 a² + 3.24 = 9     Subtract 3.24 from both sides.

a² = 9 - 3.24     Simplify

a²  =  5.76          Find the square root of both sides (Calculator time!)

a = 2.4

5 0
3 years ago
Evaluate: ab when a = 2 and b=4
worty [1.4K]

Answer:

8

Step-by-step explanation:

ab = 2 * 4 = 8

7 0
3 years ago
Read 2 more answers
Ik this is easy but i forgot how to do it help​
REY [17]

Answer:

7x

Step-by-step explanation:

4+3= 7

=7x

(since they both have the variable "x" we can combine them both)

have a good day! <3

8 0
3 years ago
What is the slope of -2x+ 5y = 10?
Klio2033 [76]

Answer:

the rise is 2 and the run is 5

Step-by-step explanation:

2/5

5 0
4 years ago
Read 2 more answers
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