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erma4kov [3.2K]
2 years ago
14

PLEASE HELP ITS URGENT!!! MATH IS THE WORST!!

Mathematics
1 answer:
Musya8 [376]2 years ago
7 0

Answer:

here you go sweet heart

Step-by-step explanation:

♡♡♡♡♡♡♡♡♡♡

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Help?? Thanks so much
Ira Lisetskai [31]
A..........duh just read the sides of the graph
6 0
3 years ago
A and B are postive integers such that 1/a + 1/b +1/ab = 1. Find ab
Kitty [74]

Answer: ab =6

have:

\frac{1}{a}+\frac{1}{b}+\frac{1}{ab}=1\\\\=>\frac{b}{ab}+\frac{a}{ab}+\frac{1}{ab}=1\\\\\frac{a+b+1}{ab}=1

=> a + b + 1 = ab

⇔ a + b + 1 - ab = 0

⇔ b - 1 - a(b - 1) + 2 = 0

⇔ (b - 1)(1 - a) = -2

because a and b are postive integers => (b - 1) and (1 - a) also are integers

=> (b - 1) ∈ {-1; 1; 2; -2;}

(1 -a) ∈  {-1; 1; 2; -2;}

because (b -1).(1-a) = -2 => we have the table:

b - 1        -1             1              2             -2

1 - a         2            -2            -1              1

a              -1            3             2              0

b              0            2             3              -1

a.b            0           6             6               0

because a and b  are postive integers

=> (a;b) = (3;2) or (a;b) = (2;3)

=> ab = 6

Step-by-step explanation:

4 0
2 years ago
Simplify 2 divided by square root 5
Daniel [21]
Ultimately 2 • sq rt of 5
_________
5

7 0
3 years ago
Read 2 more answers
A large jar contains 1380 coins. The result of 40 coins pulled at random from the jar is given below.
vredina [299]

Answer:IS B OR D BUT I SAY D

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the solution of 4x = 32 - x2?
nydimaria [60]
4x = 32 - 2x
Add -2x (or subtract 2x) from each side
2x = 32
Divide both sides by 2
x = 16
7 0
3 years ago
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