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Eddi Din [679]
3 years ago
9

What is the definition of union and intersection

Mathematics
1 answer:
Mkey [24]3 years ago
3 0

Step-by-step explanation:

the union of two sets is a new sets that contains all of the elements that are in at least one or two sets and written as (A U B)

while intersection of two sets is a new set that contains all of the elements in both sets and written as (A n B)

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The circle on the right has center O. Its radius is 3 yd., and the central angle a measures 130°. What is the area of the shaded
Soloha48 [4]

Answer:

area of the sector = 3.25π yard²

Step-by-step explanation:

The radius of the circle is 3 yards . The central angle is 130° let us say it is the sector angle of the circle. The angle is 130°. If the shaded area of the circle is the sector area of the circle the area of the sector can be computed below.

area of a sector = ∅/360 × πr²

where

∅ = center angle

r = radius

area of the sector = 130/360 × π × 9

area of the sector = 1170π/360

area of the sector = 3.25π yard²

If the shaded area is segment. The shaded area can be solved with the formula.

Area of segment = area of sector - area of the triangle

Area of segment =  ∅/360 × πr² - 1/2 sin∅ r²

The picture demonstrate the area of sector and the segment of a circle with illustration on how to compute the area of the triangle

 

7 0
3 years ago
Trough: (2,2) parallel to y=x+4
Vlada [557]

Answer:

  y = x

Step-by-step explanation:

The slopes of parallel lines are the same, so we know the equation will be ...

  y = x + constant

We can find the constant by using the given point's values for x and y:

  2 = 2 + constant

Obviously, the constant is zero.

The equation of the parallel line through (2, 2) is y = x.

7 0
3 years ago
$44 marked up by 40%
Vlada [557]
You will take 44+(40/100 * 44) = 44 + 17.6 = $61.60 ($61.60 is going to be the retail price of the lamp).
5 0
3 years ago
Read 2 more answers
Ruben sees 14 wheels on a total of 6 bicycles and tricycles. How many bicycles and tricycles are there?
Rina8888 [55]
4 bicycles 2 tricycles 
4  (bicycles)times 2(number of wheels on each bicycle) = 8
2 (bike) time 3 (number of wheels on each) = 6
8+6=14 

5 0
3 years ago
Read 2 more answers
15 3/14+ 24 1/14+ 12 2/7+ 12 2/7+ 10 1/7 +10 1/7+ 35 3/7=​
lesantik [10]

Answer:

it is :119.5714

Step-by-step explanation:

15 3/14+24 1/14+12 2/7+12 2/7+10 1/7+10 1/7+35 3/7=

step by step now:

15 3/14+24 1/14+12 4/14+12 4/14+10 2/14+10 2/14+35 6/14=118 22/14=118+1.5714=119.5714

5 0
3 years ago
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