3 years ago

Hey can u guys help me out please

Mathematics

1 answer:

Vinil7 [7]3 years ago

5 0

Yes they are congruent
Congruent means (In identical form)

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What Is The scale factor of the dilation?<br> A)-1/2<br> B)1/2<br> C)-2<br> D)2

Vadim26 [7]

Answer:

B) 1/2

Step-by-step explanation:

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3 years ago

Find the number of elements in A1 ∪A2 ∪A3 if there are 100 elements in A1, 1000 in A2, and 10,000 in A3 if a) A1 ⊆ A2 and A2 ⊆ A

Stella [2.4K]

Answer:

Step-by-step explanation:

Given that there are 3 sets such that there are 100 elements in A1, 1000 in A2, and 10,000 in A3

a) If A1 ⊆ A2 and A2 ⊆ A3

then union will contain the same number of elements as that of A3

i.e. $n(A1 ∪A2 ∪A3)=n(A3) =10000$

b) If the sets are pairwise disjoint.

union will contain the sum of elements of each set

$n(A1 ∪A2 ∪A3) = 100+1000+10000=11100$

c) If there are two elements common to each pair of sets and one element in all three sets

We subtract common elements pairwise and add common element in 3

i.e. $n(A1 ∪A2 ∪A3) = 100+1000+10000-2-2-2+1\\= 10995$

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2 years ago

The central angle of a circle is equal in measure to one radian when the corresponding arc length is equal to which of the follo

irinina [24]

The formula to find the arc length L is
L = r*theta
where r is the radius and theta is the central angle in radians (this formula will not work if theta is in degrees)

If the central angle is 1 radian, then theta = 1 and
L = r*theta
L = r*1
L = r
So the arc length is the same as the radius

Answer: Choice A) The radius of the circle

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3 years ago

Read 2 more answers

Pls help me ITS DUE TOMORROW

Lina20 [59]

G is less than 75

g=12

75-63= 12

Hope this helps!

8 0

3 years ago

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1/8 divided by 2 please help me and also 1/3 divided by 10 e

Ronch [10]

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