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Fynjy0 [20]
3 years ago
10

Plz help me!!!!!!!!!

Mathematics
1 answer:
Over [174]3 years ago
7 0

Answer:  \bold{\dfrac{4\pm \sqrt{6}}{2}}

<u>Step-by-step explanation:</u>

\dfrac{3}{y-2}-2=\dfrac{1}{y-1}\\\\\\\text{Multiply by the LCD (y-2)(y-1) to clear the denominator:}\\\\\dfrac{3}{y-2}(y-2)(y-1)-2(y-2)(y-1)=\dfrac{1}{y-1}(y-2)(y-1)\\\\\\3(y-1)-2(y-2)(y-1)=1(y-2)\\\\3y-3-2(y^2-3y+2)=y-2\\\\3y-3-2y^2+6y-4=y-2\\\\-2y^2+9y-7=y-2\\\\0=2y^2-8y+5\quad \rightarrow \quad a=2,\ b=-8,\ c=5\\\\\\\text{Quadratic formula is: }x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\\x=\dfrac{-(-8)\pm \sqrt{(-8)^2-4(2)(5)}}{2(2)}\\\\\\.\ =\dfrac{8\pm \sqrt{64-40}}{2(2)}

.\ =\dfrac{8\pm \sqrt{24}}{2(2)}\\\\\\.\ =\dfrac{8\pm 2\sqrt{6}}{2(2)}\\\\\\.\ =\dfrac{4\pm \sqrt{6}}{2}

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Which expression is equivalent to 3^4 ⋅ 3^−9?<br><br> 1/3^13<br> 1/3^5<br> 3^5<br> 3^13
boyakko [2]

{3}^{4}  \times  {3}^{ - 9}  =  {3}^{4}  \times (1/ {3}^{9}) =  {3}^{4} \div  {3}^{9}  \\  {3}^{(4 - 9)}  =  {3}^{ - 5}  = 1/( {3}^{5} )
So the 2nd answer is correct: 1 / 3^5
3 0
4 years ago
Carlos finds the absolute value of -3.8, and then finds the opposite of his answer. Jason finds the opposite of -3.8, and then f
DENIUS [597]

Carlos finds |-3.8| = 3.8. Then he finds the opposite, which is of -3.8. Jason finds the opposite of -3.8, which is of 3.8. Then he finds the absolute value, which is 3.8. Therefore, Jason has a greater final value.

<h3>Absolute value and opposite of a number</h3>

The absolute value and the opposite of a number are given as follows:

  • Absolute value: number without the signal.
  • Opposite: number with the signal exchanged.

Hence:

  • The absolute value of -3.8 is of |-3.8| = 3.8.
  • The opposite of 3.8 is -3.8. (Carlos number).
  • The opposite of -3.8 is of 3.8.
  • The absolute value of 3.8 is 3.8. (Jason number).

Hence Jason has the greater number.

More can be learned about absolute value at brainly.com/question/17795998

#SPJ4

8 0
1 year ago
How many times greater is the volume of the large bowl than the volume of the small bowl
arsen [322]
Answer: it depends on how big each bowl could be. depending on how big the diameter of the bowl is, we can figure out what the radius is, and then we could multiply that by pi squared, which gets you the area of the circle. Then we could figure out how much larger the large bowl is than the smaller bowl with the diameter knowledge that we gained.

So, for example, there was a bowl like this: (|||) (imagine that is a full circle) and that would be... about 9 in. across. imagine the smaller bowl is about 3in. across. then, we could figure out the radius by finding the middle, and expand the middle to the edge of the bowl. then, whatever the radius is, we could multiply that by 8, and get the total diameter of the bowl in inches. with that knowledge, we should be able to know the area of the bowl, by getting the diameter, and multiplying it by pi squared which equals 9.42, and then you multiply that by the radius and the diameter to get the area of the bowl.


that is how you could figure out how much bigger the large bowl is than the smaller bowl.
4 0
4 years ago
4,500 kilobytes in 6 minutes
jeka94
Hi there!

As I saw in some other questions, I assumed this question is about unit rates..

So, the answer to this is 750 kb/m

Hope this helps!
6 0
4 years ago
Raymond wants to make a box that has a volume of 360 cubic inches. He wants the height to be 10 inches and the other two dimensi
agasfer [191]
The volume of the box is l*w*h, or l*w*10, and also the volume is 360. so, 10lw=360, meaning l*w=36, so we are looking for whole number factors of 36. 
length: 1    2  3  4 6 9 12 18 36width:36  18 12 9 6 4   3   2   1
there are a total of 9 possible ways to make the base of the box so your answer would be  9

7 0
3 years ago
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