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kondaur [170]
2 years ago
10

if x and y are two overlapping subsets of a universal set U, write the relation between n(U),n(X U Y), and n(xūy).​

Mathematics
1 answer:
Andrew [12]2 years ago
4 0

Answer:

the relation between them are

n(U) = n(X U Y) + n(xūy).

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Engineering students at Lancaster College last year received an average of $6,400 in scholarships and grants. This year, the ave
valentinak56 [21]

Answer:

79% decrease

Step-by-step explanation:

Subtract 6400-1344=5056

Find percent decrease (5056/6400)x100=79

79% decrease is our final answer

8 0
3 years ago
PLSS HELP ILL GIVE YOU BRAINLIEST!!
uysha [10]

Answer:

Step-by-step explanation:

Q1)

Use Phythogoras theorem:

(AC)^2=(BC)^2+(AB)^2\\BC^2=AC^2-AB^2\\BC^2=6^2-4^2\\BC^2=36-16\\BC^2=20\\\\Apply\ square\ on\ both\ sides\\\\\sqrt{BC^2}=\sqrt{20}  \\BC=\sqrt{20} \\BC=\sqrt{10(2)} \\BC=\sqrt{5(2)(2)} \\BC=2\sqrt{5}

Q2)

Apply phythogoras theorem:

CD^2=CE^2+DE^2\\CD^2=7^2+9^2\\CD^2=49+81\\CD^2=130\\\\Apply\ square\ root\ on\ both\ sides\\\\\\sqrt{CD^2} = \sqrt{130} \\\\CD=\sqrt{130} \\\\CD=11.4

Q3)

Apply phythogoras theorem again:

BC^2=BD^2+CD^2\\BC^2=7^2+13^2\\BC^2=49+169\\BC^2=218\\\\Apply\ square\ root\ on\ both\ sides\\\\\\sqrt{BC^2} =\sqrt{218}  \\\\BC=\sqrt{218} \\\\BC=14.76

I have an attached an image for Question 2 for better understanding the length of DE in question equals 15 - 6 = 9

4 0
3 years ago
The line through (5, 7) and (1, - 5)
lbvjy [14]

Answer:

Hey there!

Slope of the line: \frac{y2-y1}{x2-x1}

Slope of the line: \frac{12}{4}, which is equal to 3.

Point slope form: y2-y1=m(x2-x1)

Point slope form: y-7=3(x-5)

Y intercept form: y-7=3x-15

Y intercept form: y=3x-8

Let me know if this helps :)

3 0
3 years ago
If it cost $10.50 for Lisa to make 75 copies at the office store, how much would it cost for her to make 500 copies
Ksenya-84 [330]

Answer:

$70

Step-by-step explanation:

75 copies=$10.50

$10.50÷75= 0.14 <em>(to get the price of 1</em> <em>copy)</em>

0.14×500=$70

6 0
2 years ago
Read 2 more answers
A 1/12<br> b 36/1<br> c 1/36<br> d 1/6
andrew11 [14]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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