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Understood, sorry.

3.6 r/ 6 s   * 60s/min * 2pi R/r =............ R/m  

@Guest: The problem is asking what is m+b, not m and b. In addition of your post as you stated that m is 4 and b is 8, 4+8=12

Hint: Try prime factorizing 475. What is the number without a power? Then, find all of the multiples of [insert number in 475's prime factorization without a power here] from 1 to 474. 

There are no choices for the equations but the equation for this is 59.99+0.25x

the equation for this is x^2+y^2=25 and when you solve for x and y 0, 1, 2, 3, 4 and 5 work. I think all of them work for x but for y only 0, 3, 4, and 5 work. what the two lists have in common is the numbers 0, 3, 4, 5 so the solutions can be (0, 3), (3, 4), (4, 5), (3, 5), (0, 4), and (0, 5) and all of their inverses. (an inverse means the negative of the number, e.g. the inverse of 3 is -3). The inverse works becase if you multiply the same negative twice, it becomes positive. (aka -x*-x=y, where x is negative). Remember, the equation is x^2+y^2=25 and a negative squared is positive. 

since there are 6 positive solutions as said above, all of them have a inverse so the answer is 6+6=12 times I think

not sure if this is correct tho

@Melody: Exactly. the original poster has posted several others of these threads saying what is x estimated (x is a decimal in this case.) and he/she never even told us where to round to (e.g. ones, tenths, hundredths, etc.)

Estimated to what?  You have not asked a question.

2 parts of the bag make 18 marbles.

So one part must be 9 marbles

3 parts of the bag are blue so there must be 9*3 =27 blue marbles.

start by converting 5/8 into a decimal = 0.625

8*0.625=5m string she used but we're looking for how many she has left

to find how many she has left, simply do total meters of string subtracted by how many meters of string she used

so 8-5=3m of string left over

If there are 18 green marbles and in the ratio thing it says green goes to 2, 18/2=9. the blue thing is 3 so 3*9=27

I'm assuming you mean what is 2.4 estimated to the nearest whole so 2.4 estimated to the nearest whole is 2

The largest possible value of b is 3.

The answer is 0.5

In trapezoid ABCD, line AB is parallel to line CD, and AB < CD. The base CD has a length of 8. The legs AD and BC have lengths of 6, and the diagonal BD has a length of 9. Find the area of the trapezoid.

A = 40.06644547 

Hello! 9/12 can be simplified as 3/4. You can either do long division or multiply to get 100 in the denominator, if you multiply by 25 you get 75/100 which is 0.75. So the decimal equivalent is 0.75. 

(1, 2, 4, 71, 142)>>Total = 220

Note that we can  factor the top expression as

(sqrt (x) + sqrt (y) ) ^2  = 64              take the  positive root

(sqrt (x)  +  sqrt (y) = 8

And the  secomd equation cam be factored as

xy ( sqrt (x) + sqrt (y) )   =  32

xy ( 8)  =  32

xy =   32/8   =   4

So   using the  first equarion 

x + y   +  2sqrt (xy)  =   64

x + y +  2sqrt (4)  =  64

x +   y  + 2*2  =  64

x +  y  +  4  = 64

x + y =   64   - 4   =  60

The possible values of P are 3, 4, 5, 6, and 7, so the answer is 3 + 4 + 5 + 6 + 7 = 25.

(101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189, 191, 193, 195, 197, 199, 201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 221, 223, 225, 227, 229, 231, 233, 235, 237, 239, 241, 243, 245, 247, 249, 251, 253, 255, 257, 259, 261, 263, 265, 267, 269, 271, 273, 275, 277, 279, 281, 283, 285, 287, 289, 291, 293, 295, 297, 299, 301, 303, 305, 307, 309, 311, 313, 315, 317, 319, 321, 323, 325, 327, 329, 331, 333, 335, 337, 339, 341, 343, 345, 347, 349, 351, 353, 355, 357, 359, 361, 363, 365, 367, 369, 371, 373, 375, 377, 379, 381, 383, 385, 387, 389, 391, 393, 395, 397, 399, 401, 403, 405, 407, 409, 411, 413, 415, 417, 419, 421, 423, 425, 427, 429, 431, 433, 435, 437, 439, 441, 443, 445, 447, 449, 451, 453, 455, 457, 459, 461, 463, 465, 467, 469, 471, 473, 475, 477, 479, 481, 483, 485, 487, 489, 491, 493, 495, 497, 499)==[101 + 499] / 2 x 200==60,000 - Total of all odd integers between 100 to 500

Both are wrong :(

Sorry, I already trired that answer already, and it's wrong :/

The answer is 2 + 6 + (-1) = 7.

i am having trouble with this problem too so what did you get for the answer