All Answers 358128 Answers

3/4n - 18 = 1/4n - 4

1/2n = 14

n = 28

Very well explained, Ninja....!!!!

A is incorrect

You can choose more than 1 option

There is no other variable in the equation so I do not think it has a standard form besides b = -17/8.

Is there any other variable in it??

What is the standard form of -3 = -7/8 + b ?

-3 = -7/8 + b<--------Add 7/8 to both side

-17/8 = b

b = -17/8 OR -2.125

Substitution:

Change second equation to point slope:

y=-3x-13

9x-2y=27<---Second Eq.

2y = 9x - 27

y = (9x - 27)/2

y=-3x - 13

Since they both equal y, you can set them equal to each other.

(9x - 27)/2 = -3x - 13 -------------Multiply both sides by 2

9x - 27 = -6x - 26

15x = 1

x = 1/15

Now plug this into either of the equations to get y. I will do the first one

y = -3x - 13 ---------Plug in 1/15 for x

y = -3/15 -13

y = -1/5 - 13

y = -13 1/5

y = -66/5 OR -13.2

x = 1/15 OR 0.06666666666666666666666666666666666666666666666666666667

Elimination Method-->

Set first equation to standard form. 

y = -3x - 13<--------First Equation

9x - 2y = 27

y = -3x - 13

y + 3x = -13<-------------Standard form

-2y + 9x = 27<------------Flipped x and y on the left side. Doesn't change the original equation

Now multiply the top equation by 2

2(y + 3x) = 2 * -13

2y + 6x = -26

-2y + 9x = 27

Now add both equations. This eliminates y so now you can solve for x.

2y + 6x -2y + 9x = -26 + 27

15x = 1

x = 1/15

Now you just do the stuff we did for substitution and solve for y.

y = -3x - 13 ---------Plug in 1/15 for x

y = -3/15 -13

y = -1/5 - 13

y = -13 1/5

y = -66/5 OR -13.2<-----------------------------------------------------------------------------------------Answer for y

x = 1/15 OR 0.06666666666666666666666666666666666666666666666666666667<-----Answer for x

she played hand ball for 66 miunets 

You're the best okay! :D

Sure! I'm very fluent just message me.

I  = Prt

1) The interest earned in dollars after 6 months   ..... t = 1/2.....6%  = .06

I =  1498 (.06) (1/2)   =  $44.94

2) the total amount of money in his account after 3 years.

A  = P + I  =   1498 + 1498 (.06) (3) =  $1767.64   

3)how long will it take before the investment earns $449.40

449.40  = 1498 (.06) (t)      divide by 1498 (.06)

[449.40] / [ 1498 (.06 ]  =  t  =  5  years  =  10 (1/2) year periods  !!!!

I dont think so....

The area of a right triangle is Leg x Hypotenuse. 

This is false.

log₅(625)   = 

log₅5^4  =   

[ use  log_aa^b  = b * log_aa ]

4 * log₅(5)   =      [log_a a  = 1 ]

4 (1)   =

4

You would need to know one of the sides.....there would be an infinite number of  similar right triangles  whose angles are the same but all with different sides

87,240,000,000  =   8.724 x 10^10

A. 50 ≤ x ≤ 58

If x = 54.....we have...

54 − 4   = 50   and   54  + 4  = 58

And the %  can fall between these two values, inclusively

My understanding is that you can itemize deductions OR claim a Standard deduction...but not BOTH.  Her standard deduction is greater than her other possible deductions listed .    She is allowed the exemption 7300.  She also can deduct her IRA contributions as it is considered an 'above- the- line' deduction (and she is below the phase out income limits---does not matter if you itemize or take standard deduction....ALSO if she has a retirement plan at work her IRA MAY not be deductible)

65745  - IRA  - 11400 - 7300=  44735.33

P.S.   I am NOT an accountant or tax advisor !!!!     LOL

It's right Cphill :)

Thanks, Majid.....I suspect your answer is the one wanted.....

Of course you're right, CPhill.

(1+ (6 (sqrt (2)) / 5 = (1+√72)/5

I do not correct, we have your right solution.
Thanks for the correction.   !

h(x)=2x+4     x is -5

So...put -5  into the function and evaluate

h(-5 )   =   2 (-5) + 4   = -10  +  4   =  -6

\(x²+[ (1+\frac{6\sqrt2}{5})x-6]² = 36\)

\(x²+ (1+\frac{6\sqrt2}{5})²x²-12x(1+\frac{6\sqrt2}{5})+36 = 36\)

\(x[(1+ (1+\frac{6\sqrt2}{5})²)x-12(1+\frac{6\sqrt2}{5}) ]= 0\)

so: x=0 and \((1+ (1+\frac{6\sqrt2}{5})²)x-12(1+\frac{6\sqrt2}{5}) = 0\)

\( x =\frac{12(1+\frac{6\sqrt2}{5})}{(1+ (1+\frac{6\sqrt2}{5})²)}\)

\( x =\frac{12(1+\frac{6\sqrt2}{5})}{1+ 1+\frac{72}{25}+\frac{12\sqrt2}{5}}\)

\( x ={\frac{300+360\sqrt2}{122+60\sqrt2}}\)

\(x=3.91\)