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You need to use brackets on a question like this so that the meaning cannot be misunderstood.

Do you mean

\((1/17)^{0.5} х-1=9\\ or\\ (1/17)^{0.5 х}-1=9\\ or\\ (1/17)^{0.5 х-1}=9\\ \)

The first one is the corret interpretation but often askers mean something else. 

A park has a sandbox that measures 18 yd. by 36 yd. They are adding 2 inches of new sand. How many cubic yards of sand will they need?

(2/12) / 3=0.05556 yards of sand to be added.

18 x 36 x 0.055556=36 cubic yards of sand needed.

I am getting 36 inches of new sand. You have to convert the inches into yards by making it a fraction and then multiplying it by the dimensions of the sandbox. So, 2/36 x 18 x 36 = 36 cu yards of sand.

error:

It is the quadratic formula not the quadratic theory  

Thanks Guest.

how to fully factor x^2-6x+7

This does not have rational roots so I will use the quadratic theory.

\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\\ x = {6 \pm \sqrt{6^2-4*1*7} \over 2*1}\\ x = {6 \pm \sqrt{36-28} \over 2}\\ x = {6 \pm \sqrt{8} \over 2}\\ x = {6 \pm 2\sqrt{2} \over 2}\\ x = {3 \pm \sqrt{2}}\\ \mbox{So the factors are}\\ x-(3 + \sqrt{2})\qquad and \qquad x-(3- \sqrt{2})\\ (x-3- \sqrt{2})\qquad and \qquad (x-3+ \sqrt{2})\\~\\ x^2-6x+7=(x-3- \sqrt{2})(x-3+ \sqrt{2})\\~\\ \mbox{This is the same as guests answer} \)

Why do you think that this is true?  It makes no sense to me.

[n + n^2 + n^3 + n^4 + n^5 + n^6]^15.

The expansion of this generating series will give terms from n^90 to n^15. You simply calculate the coeffficient of n^53 =27,981,391,815. Then 27,981,391,815 / 6^15=0.059511.... x 100 =5.9511%, which is the exact probability.

how to solve 15+10^2-2

15 + 100 - 2=

115 - 2 = 113

8(x - 4)  =  x - 12

Multiply the left side, using the distributive property:

8x - 32  =  x - 12

Subtract x from both sides:

7x - 32  =  -12

Add 32 to both sides:

7x  =  20

Divide both sides by 7:

x  =  20/7

 solve for x: 0.08+0.4x=0.21

0.4x =.21 - 0.08

0.4x=0.13 divide both sides by 0.4

x=0.325

Let the width=W

Length=W-7

52^2=W^2 + [W - 7]^2, solve for W

W=40.10 inches - the width

40.10 - 7 =33.10 inches - The length.

what is the square root of five times the square root of fifteen in a square root form

sqrt(5).sqrt(15)=sqrt(5.15)=sqrt(75)=5sqrt(3)

all i do is this:

You start with 500 sheets of notebook paper.

After 1 week, you have 72% of the sheets left.

--  Since 72% of 500 =  0.72 x 500 =  360, you have 360 sheets left.

You use the same number of sheets each week.

--  Since you started with 500 sheets and you have 360 sheets left after one week, you have used 500 - 360 = 140 sheets the first week.

You use the same number of sheets each week, so you use 140 sheets each week.

Write an equation that represents the number of sheets remaining (y) after x weeks.

y  =  500 - 140x

In slope-intercept form, this becomes:  y  =  -140x + 500.

thx

thx

One of your friends gives you $10 for a charity walkathon  --  this is your beginning amount.

Another friend gives you an amount per mile  --  you will need to calculate this value.

After 5 miles, you have raised $13.50 total --

--  Since one friend gave you $10.00, subtract this from the $13.50 to give you the amount earned by walking the 5 miles

--  $13.50 - $10.00  =  $3.50  

--  Since you walked 5 miles, divide $3.50 by 5 to give you $0.70 per mile earned.

So, an equation that represents the amount of money earned is:  y  =  $0.70x + $10.00

This is in slope-intercept form; the slope is $0.70 and represents the amount of money earned per mile

and the intercept is $10.00 and represents the initial amount of money that you were given.

A boa constrictor is 18 inches long at birth.

It grows 8 inches per year.

Write an equation that represents the length y (in feet) of the boa constrictor that is x years old.

First, change the known values into feet:  18 inches = 1.5 feet     8 inches per year = 2/3 foot per year.

Final equation:  y  = (2/3)x + 1.5

178965.769231

    how to fully factor x^2-6x+7=  -(-x+sqrt(2)+3) (x+sqrt(2)-3)

T=2pi.sqrt(L/g) You didn't give us your height!!!, so I will make you 5 feet tall!

T=6.28. sqrt(5/32)

T=6.28 . 0.3952847

T=2.482 seconds- period of one pendulum swing.

what is 2^4^2+2

2^16 + 2 =

65,536 + 2 =65,538

-3 7/8 < x < - 0.8

=-31/8 < x < -4/5

5/2 =2.5 Light years x 365.25 x 24 x 3,600 x 300,0000 kps=23,668,200,000,000 km=2.36682 x 10^13km.

FV=PV[1 + R]^N

[15,000/ 11,500]^(1/72) - 1 x100=0.369714% This is the interest rate per month.

0.369714 x 12 =4.44% This is the annual interest rate compounded monthly.