All Answers 358090 Answers

Thanks, a little late though, sorry. I can use this from now on though... Also... i see you have a new profile picture xD

Going from one corner of a rectangular box to the diagonally opposite corner:

(distance through box)²  =  (length of box)² + (width of box)² + (height of box)²

In a three-dimensional graph:

d = distance                     x, y, z  = axes

d²  =  x² + y² + z²

Let \(w\) equal number of miles Martha walked

\(\frac{2.9mi}{1hr}=\frac{w}{0.57hrs}\)

\(1hr\times w=0.57hrs\times2.9mi\)

\(1hr\times w= 1.653mi/hr\)

\(w=1.653mi\)

Martha walked for 1.653 miles.

-1x > 15     divide both sides by -1 and reverse the inequality sign

x < -15

Assuming 150  is supposed to  be 150m^2.....we have

45* 82 / 150  =  24.6   [or, 25 tins]

Let the number of video games sold=V

.20V=550 divide both sides by .20

V=550/.20

V=2,750 total video games sold in one year.

5^-4 = 1/5⁴  = 1/ [5² * 5²]  = 1 / [25 * 25]   = 1/ 625

Thanks! :)

what is 5 to the -4th power in standard notation?

5^-4=1 / 5^4=1 / 625=0.0016

Just multiply the two together:

2.9 X .57=1.653 miles Marta walked.

I will tell you if you answer this http://web2.0calc.com/questions/what-is-5-to-the-4th-power-in-standard-notation 

See the graph  of the constraints, here : https://www.desmos.com/calculator/laixdb2hd8

There is only one corner point [vertex] at (400,500)

The max profit will be :

P = 14(400) + 22(500)  - 900  = $15700

or do this: 96 + 97 + 98 + 99 + 100 + 101 + 102 + 103 + 104 = 900

Maybe use your brain and not ask the internet for the answer to all your easy math problems.

2,750 were sold that year, right?

3? lol no it is 2

Yes. You can simply type it as you have written it, with the number or expression of interest in the brackets

window hahahaha

Thanks CPhill ! :)

96,97,98,99,100,101,102,103,and 104  =

Each of the first 4 terms written in reverse order and paired with the last 4 terms will produce a sum of 4(200)

Adding the middle term - 100 - produces   4(200) + 100  = 800 + 100   = 900

Ah....I see now.....I misread this one........!!!!!

We can solve this in this manner

n(n -1)  = 210

n^2 - n  = 210     subtract 210 from both sides

n^2 - n - 210  = 0     factor

(n  - 15) ( n + 14) =  0

So either   .....n = 15   or n = -14   

The second doesn't make sense.....so   the 15th term is 210

There......that's better.....!!!!

BTW....Guest 1 completed the square......that's OK, but it's more work than necessary, here  !!!!

\(cos(-1)=\frac{8}{15}\)

\(cos(-1)≠\frac{8}{15}\)

\(0.540302305868...≠\frac{8}{15}\)

\(0.540302305868...≠ 0.5333333333333333...\)

Note that triangle FBE ≈ triangle ABC

And similar triangles are similar in all respects

And since  BE/EC  = 1/2, then BE/BC   = [ BE] / [ BE + EC]  =  1 / [1 +2] = 1/3

Thus, the base of triangle FBE    = 1/3  the base of  triangle ABC

So......the height of triangle FBE will also be 1/3 of that of triangle ABC

This means that  the area of traingle FBE = (1/3)^2 area of triangle ABC  = 1/9 the area of triangle ABC

And  triangle  DEC  ≈ triangle ABC

And since DC = 2/3 of AC, by similar reasoning as above......each of its dimensions will be 2/3 of those of triangle ABC

So.......the area of triangle DEC = (2/3)^2 the area of triangle ABC = 4/9 the area of triangle ABC

Thus.....area of  triangle ABC - area of  triangle FBE - area of  triangle DEC  = the area of AFED

So

ABC - (1/9) ABC - (4/9) ABC  =  ABC - (5/9)ABC  =  (4/9)ABC

Thus, AFED  is  (4/9) the area  of triangle ABC

its 2

if the rule is n(n-1) what term is 210

0, 2, 6, 12, 20, 30, 42, 56, 72, 90, 110, 132, 156, 182, 210, 240, 272............etc  

The 15th term.