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eimsori [14]
3 years ago
10

Is 0 a perfect square?

Mathematics
2 answers:
Nutka1998 [239]3 years ago
4 0
0 is a perfect square.

Because 0 * 0 = 0.
Ghella [55]3 years ago
3 0
The answer is Yes & No, depending on your definition and how you think about the question (and the answer)
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If x and y in the equations
Brums [2.3K]
We can let
   a = 1/(x-1)
   b = 1/(y+2)
and rewrite the equations as
   2a - b = 10
   a + 3b = -9
Using the first to write an expression for b, we get
   b = 2a - 10
Substituting this into the second equation gives
   a + 3(2a -10) = -9
   7a -30 = -9 . . . . . . . . simplify
   7a = 21 . . . . . . . . . . .add 30
   a = 3
   b = 2·3 - 10 = -4

Now, we can find x and y.
    3 = 1/(x -1)
    x - 1 = 1/3
    x = 1 1/3 = 4/3

    -4 = 1/(y +2)
    y +2 = -1/4
    y = -2 1/4 = -9/4

Then the desired sum is
    x + y = 4/3 -9/4 = (16 -27)/12
    x + y = -11/12

The appropriate choice is ..
   c. -11/12
5 0
3 years ago
A drawer contains 6 white socks and 10 black socks. If 2 socks are chosen at random, what is the probability that they will have
SpyIntel [72]

|\Omega|=C(16,2)=\dfrac{16!}{2!14!}=\dfrac{15\cdot16}{2}=120\\|A|=C(6,2)+C(10,2)=\dfrac{6!}{2!4!}+\dfrac{10!}{2!8!}=\dfrac{5\cdot6}{2}+\dfrac{9\cdot10}{2}=15+45=60\\\\P(A)=\dfrac{60}{120}=\dfrac{1}{2}=50\%

3 0
4 years ago
Read 2 more answers
I need help with ratios.
ra1l [238]
Me toooo! if anyone in these comments could answer my question, that'd be awesome!
6 0
3 years ago
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Find the percent increase. From 32 teachers to 45 teachers.
qaws [65]

Answer:

71.1

Step-by-step explanation:

4 0
3 years ago
Mhanifa could you please answer this last question for me. What is MXH in the circle below? A.Major arc, B.Minor Arc, C Semicirc
Nookie1986 [14]

Answer:

  • C. Semicircle

Step-by-step explanation:

MH is the diameter and it divides the circle in half.

MXH is the arc between the endpoints of the diameter, therefore is  semicircle.

Correct choice is C

5 0
3 years ago
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