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Ulleksa [173]
3 years ago
7

Which figures demonstrate a reflection? Select each correct answer.

Mathematics
2 answers:
Romashka [77]3 years ago
4 0

top right and bottom right

laila [671]3 years ago
4 0

Answer:

C and d

Step-by-step explanation:

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Consider the universal relation r = {a, b, c, d, e, f, g, h, i, j} and the set of functional dependencies f = { {a, b } → {c}, {
nekit [7.7K]

Answer:

relation of FDs are {a, b, d, h}. From these all but {h}

seem plausibly part of keys. Calculating the closures of likely candidates gives:

{a, b} + = {a b, c, i}

{b, d} + = {b, d, e, f}

{a, d} + = {a, d, g, h, i, j}

{a, b, d} + = {a, b, c, d, e, f, g, h, i, j}  

decompose r into 2nf and then 3nf relations shown in attachment.                    

Step- by-Step Explanation

Explanation is given in the attachment.

8 0
3 years ago
What steps do i take to prove this? i have a few more
Maksim231197 [3]

Answer:

They are opposite angles. If you rotate the figure SQM 180 degrees counter clockwise, they will be the exact same triangle and therefore the exact same measure.

Step-by-step explanation:

5 0
2 years ago
A machine can produce 6yards of fabric in 2 minutes. How much fabric can the machine produce in 1 hour?
Alex17521 [72]

Answer:

180

Step-by-step explanation:

2 times 30 equals 60 which is an hour so 6 times 30 equals 180.

5 0
2 years ago
Read 2 more answers
Raina's penny bank is  1/4  full. After she adds  360  pennies, it is  5/8  full. How many pennies can Raina's bank hold? ​
Triss [41]

Answer:

960

Step-by-step explanation:

We start with the variable "x". Let's call "x" Raina's penny bank.

After adding 360 pennies, at the end, she has 5/8x, or 5/8.

So we start with

(1/4)x + 360 = 5/8x

Let's subtract 1/4x from both sides

360 = 5/8x - 1/4x

Remember, we need to use common denominators to subtract, so 1/4 becomes 2/8

360 = 5/8x - 2/8x

Now we simplify to get

360=3/8x

Multiply the reciprocal of 3/8 to both sides which is 8/3

360 * 8/3 = x

Answer is 960 pennies.

Therefore Raina's bank hold 960 pennies.

4 0
2 years ago
Read 2 more answers
$10,788 per dozen, find for EACH computer (a) dollar markup, (b) percent markup on cost, and (c) percent markup on selling price
swat32
It’s A dollar markup
5 0
3 years ago
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