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3 years ago

If y+1/y=5 then show that (y^3+1/y^3)=110

Mathematics

1 answer:

Mandarinka [93]3 years ago

4 0

See the picture below

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Wat is thy square root of 4761

deff fn [24]

Answer:

Step-by-step explanation:

69 squared is 4761

7 0

3 years ago

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Solve the following equation. Then place the correct number in the box provided. 2x - 1 ≤ x + 5

Mazyrski [523]

$\huge\textbf{TheStarryNights }$ Hi There!

Solve the Inequality:

2x-1≤x+5

Move all the variables (in this case, x's) to the left, using the opposite operation:

2x-x-1≤5

Move -1 to the left:

2x-x≤5+1

Combine like terms:

x≤6 (Answer)

<h3>Hope it helps & enjoy your day!</h3>

$\huge\textbf{TheStarryNights}$

7 0

2 years ago

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B11%7D%20%3D%5Cfrac%7Br%7D%7B13%7D%3F" id="TexFormula1" title="\frac{2}{11} =\

notka56 [123]

I hope that it helps you..

4 0

2 years ago

Match the system of equations on the left with the number of solutions on the right

erastova [34]

Answer:

top to bottom, the answers are b, c, a

Step-by-step explanation:

One way to find the solution to a system of equations is to substitute values in. For the first one,

y=2x+3

y=2x+5,

we can substitute 2x+3 =y into the second equation to get

y=2x+5

2x+3 = 2x+5

subtract 2x from both sides

3 = 5

As 3 is not equal to 5, this is never equal and therefore has no solution

For the second one,

y= 2x+7

y = (-2/3)x + 10

We can plug y=2x+7 into the second equation to get

2x + 7 = y = (-2/3)x + 10

2x + 7 = (-2/3)x + 10

add (2/3)x to both sides to make all x values on one side

2x + (2/3)x + 7 = 10

subtract 7 from both sides to make only x values on one side and only constants on the other

2x + (2/3)x = 3

(6/3)x + (2/3)x = 3

(8/3)x = 3

multiply both sides by 3 to remove a denominator

8x = 9

divide both sides by 8 to isolate x

x=9/8

There is only one value for when the equations are equal, so this has one solution

For the third one

y = x-5

2y = 2x - 10

Plug x-5 = y into the second equation

2 * y= 2*(x-5)

2 * (x-5) = 2x - 10

2x-10 = 2x-10

add 10 to both sides

2x=2x

As 2x is always equal to 2x, no matter what x is, there are infinitely many solutions for this system

6 0

3 years ago

When solving equation which is the best first step to begin to simplify the equation -2(x+3)=-10

LiRa [457]

Answer:

Step-by-step explanation:

Alright, lets get started.

The given equation is :

$-2(x+3)=-10$

If we divide the equation with -2 in both sides

$\frac{-2(x+3)}{-2}=\frac{-10}{-2}$

$(x+3)=5$

$x+3=5$

Subtract 3 in both sides

$x+3-3=5-3$

$x=2$

So, the first step of simplifying equation is divide equation with -2. : Answer

Hope it will help :)

3 0

3 years ago

Read 2 more answers