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Paraphin [41]
3 years ago
9

. Match each angle of rotation to the point that A′ (the image of A) coincides with after that rotation.

Mathematics
1 answer:
zalisa [80]3 years ago
6 0

Step-by-step explanation:

sorry unclear question...so can't help...try again with a clear one

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Mckenzie has been saving her earnings from mowing the
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2 years ago
The quadratic function h(t)= -16.t^2+150 models a ball’s height, in feet, over time, in seconds, after it is dropped from a 15 s
irga5000 [103]
At time 0 its height is -16(0)^2 + 150  = 150

Height from whick its dropped is 150 ft.
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3 years ago
20 grams is 60% of what weight
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Answer:12

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3 years ago
A1,a2,a3....a30-each of these 30 sets has 5 elements.b1,b2,....bn-each of these n sets has 3 elements.union of a1,a2...a30=union
zzz [600]
 the number of elements in the union of the A sets is:5(30)−rAwhere r is the number of repeats.Likewise the number of elements in the B sets is:3n−rB
Each element in the union (in S) is repeated 10 times in A, which means if x was the real number of elements in A (not counting repeats) then 9 out of those 10 should be thrown away, or 9x.  Likewise on the B side, 8x of those elements should be thrown away. so now we have:150−9x=3n−8x⟺150−x=3n⟺50−x3=n
Now, to figure out what x is, we need to use the fact that the union of a group of sets contains every member of each set.  if every element in S is repeated 10 times, that means every element in the union of the A's is repeated 10 times.  This means that:150 /10=15is the number of elements in the the A's without repeats counted (same for the Bs as well).So now we have:50−15 /3=n⟺n=45
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2 years ago
A pentagon has 3 congruent sides and 2 other congruent sides. The perimeter of the pentagon is 36 centimeters. The three long co
zvonat [6]
The answer is c. ...
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