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phill what grade r u in

23  = 23

31 =  31

68 = 4 x 17

Notice that none of these numbers have any common factors.......so the GCF is 1

Now....if you want the LCM  [ common denominator], just multiply the numbers together

23 x 31 x 68 = 48,484

1.16^(1/12)  =  1.0124451379197135

Distance / Rate = Time     .....so......

481.6 / 56 = 8.6 hrs =  8hrs 36 min

Lol. I hardly think that's likely TR. Oh have u watched Mr. Peabody & Sherman? Remember that bit with the trojan horse? Lol!!! 

( 1 + 2/5) - (5/8)  =

7/5  - 5/8        get a  common denominator of 40

56/40 - 25/40  =    31/40

-11<4y-3<1    the idea is to end up with just "y" in the middle.......   add 3 to everything

-8 < 4y < 4     divide everything by 4

-2 < y < 1

That's Kepler's 2nd Law. Look it up here:

http://www.physicsclassroom.com/class/circles/Lesson-4/Kepler-s-Three-Laws

The Law of Equal Areas

120,000=p1^0.05(10)   simplify

120,000 = p1^(.5)  = p1^(1/2)   = sqrt(p1)

120,000 = sqrt(p1)        square both sides

14,400,000,000    = p1

Multiply 3 by 1 to left and add 1 on the top part of the fraction, like this:

3 X 1 +1=4. The 3 on the bottom stays the same, so we have 1 1/3=4/3

-2sin2x+cosx=0     

-2(2sin xcosx) + cosx = 0    factor out cosx

cosx(-4sinx + 1) = 0    set each factor to 0

cosx  = 0     and this happens at 90° + n180°    where n is an integer

-4sin x + 1   = 0     subtract 1 from each side

-4sinx = -1    divide both sides by  -4

sin x = 1/4      and using the sin inverse, we have sin^-1(1/4)  = x = about 14.48°  + n360°     and x = about 165.52° + n360°    where, again, n is an integer

Here's a graph.........https://www.desmos.com/calculator/77jadcnenw

25000 compounded quarterly at 9%; what is the formula for this?

Compounded quarterly means you divide it by 4, so we have,

9% means=9 / 100=.09 /4=.00225 per 1 quater of the year.

.00225 + 1=1.00225, so the formula is (1 + interest rate per period)^n, n being number of periods,

So for 1 year we have 4 quaters and the formula becomes this:

(1 + .00225)^4 X25,000=27,327.08. That's how much you will  have at the end of year at 9% compounded quarterly.

how to solve for p1 120,000=p1^0.05(10)

p1^.5=120,000, we take the log 120,000

.5p1   =5.079181, we divide both sides by .5

p1=10.158362 this is the antilog, and we raise it to the base 10

p1=10^10.158362=14,400,000,000 approx.=1.44 X 10^10

Just multiply 2 X 2=4 X 2=8 X 2 =16 X 2=32......and so on.Keep multiplying every new number you get by 2 and so on..........etc.

Principal x rate x time = interest

Interest + principal = balance

Principal is your starting amount (25000)

Rate is the percent of interest (.09)

Time is how often which in this case is quarterly (1/4 or .25)

check your answers

it will help you alot.

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What is 1 and 2/5 - 5/8

=31/40

such as d/8 = 6 I need to find what d equals

We divide both sides by 8, and we have:

d=6/8, reduce by dividing both numbers by 2 and

d=3/4

For every weekend that Mia does her household chores, her mother gives her $9. For how many weekends does Mia have to do her chores to earn more than $40?

$40 / 9=4.44 weekends OR in reality Mia has to work 5 weekends, because 5 X 9=$45.

It's rational!. You know what rational means? It means that if a number can be written as a RATIO  of two numbers such as p/q, then it's rational. Whenever you see a number expressed as a ratio, then of course that means it's rational. Whether it's + or - doesn't matter.

such as d/8 = 6 I need to find what d equals.

Always give an example!.

x *+2*+4 =0

8x = 0

what is the percent for 0.4

.4 X 100=40%