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Delvig [45]
3 years ago
9

I need help!! ASAP!!

Mathematics
1 answer:
AlekseyPX3 years ago
4 0

9514 1404 393

Answer:

  (2x +1)/(4x^2) . . . . except x=0, -1

Step-by-step explanation:

Addition of fractions works in the usual way:

  a/b +c/d = (ad +bc)/(bd)

Division of fractions works in the usual way:

  (a/b)/(c/d) = (ad)/(bc)

__

  \dfrac{\left(\dfrac{1}{2x}+\dfrac{1}{2x+2}\right)}{\left(\dfrac{2x}{x+1}\right)}=\dfrac{1}{2}\cdot\dfrac{\left(\dfrac{1}{x}+\dfrac{1}{x+1}\right)}{\left(\dfrac{2x}{x+1}\right)}=\dfrac{1}{2}\cdot\dfrac{\left(\dfrac{2x+1}{x(x+1)}\right)}{\left(\dfrac{2x^2}{x(x+1)}\right)}\\\\=\boxed{\dfrac{2x+1}{4x^2}}

The expression is undefined for any denominator equal to zero: x=0 or x=-1.

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Gary is looking over his receipts from his trip to Europe. When he was in Germany, he exchanged US dollars for euros at a rate o
fiasKO [112]
The US to euros is 1: 0.7716, 
The euros to Polish is 1:4.0518

0.77      4.05         0.77     1          0.77
-----  /  --------- =   ------- x ----     = ------         
 1             1              1       4.05     4.05

 (so for every 0.77 dollars it is 4.05 zolty.)

hope this helps

sorry if it is confusing



7 0
3 years ago
Read 2 more answers
What is a model for 5 x 3?
Scrat [10]
The answer will be 471022
7 0
3 years ago
Plz i need help and plz explain
Montano1993 [528]

\frac{ {x}^{2}  - 7x + 12}{ {x}^{2} - x - 12 }  \\  =  \frac{ {x}^{2} - 4x - 3x + 12 }{ {x}^{2} - 4x + 3x - 12 }  \\  =  \frac{x(x - 4) - 3(x - 4)}{x(x - 4) + 3(x - 4)}  \\  =  \frac{(x - 3)(x - 4)}{(x + 3)(x - 4)}  \\  =  \frac{x - 3}{x + 3}

x² - x - 12 ≠ 0

x² - 4x + 3x - 12 ≠ 0

x (x - 4) + 3 (x - 4) ≠ 0

(x + 3)(x - 4) ≠ 0

x ≠ -3 or x ≠ 4

(B)

3 0
4 years ago
7 +9 (3 + 8) =<br>can someone help​
Pavlova-9 [17]

\huge\boxed{106}

7+9(3+8)

Add.

7+9*11

Multiply.

7+99

Add.

\boxed{106}

7 0
3 years ago
Read 2 more answers
Help please I don’t understand
zvonat [6]

Your answer is wrong. The correct answer is J. She needs to jog another 285 yards.

3 miles is equal to 5280 yards. If she jogged so for 4,995 yards, you need to subtract 4,995 from 5280. Therefore, she needs to jog 285 more yards. Hope this helps! Good Luck!

3 0
3 years ago
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