mathgeekdude

use prob, last digit has to be either 2,4, or 8 to be divisible by 4, and the tens digit for 2 will be either 3 or 7. for 4, it has to be either 2 or 8, and for 8, it will be either 2 or 4. 3*2

=6, and arrange the rest of the digits appropriately...i think...

raised...past tense remember

try guessing. 28*2 =56. 56 is between 50 and 60. so its 56.

D yes. remember its not present, nor past, nor future, but continual. (whatever, its D)

Use L'Hospital's rule (twice)

it probably would be B.."in 1960, american scientists raiseda serious concern" vs "in 1960, american scientists have raised a serious concern"

its about 2.7 or so.... its the sum of the infinite series 1+ 1/1 +1/1*2 + 1/1*2*3 + 1/1*2*3*4....

first things first...calm down. yes, its extremely hard. but we go simple approach. y-x=2 implies y=x+2.we substitute that in the first equation to get x+2 = x^2+5x-3 =x^2+4x-5=0. We factor to get (x-1)(x+5)=0. Thus, x=1, or -5. PLugging in, we get y=-3,3...

use area of circle formula. a=pi r^2 c=pi d Thus, we need to plug in numbers. 1385/pi = r^2. We take the square root of that to get the radius.Then, we can double that radius and multiply by pi to get the circumference. the formula would be 2pi sqrt1385/s...

just plug it in. 6t^2+110t+3000=6000, thus 6t^2+110t-3000=0 and we factor but first we divide by 2. Thus we get the equation 2(3t+100)(t-15)=0. FYI if you did not learn what just happened please study your algebra book. Anyway, x= -100/3 or 15, but it can...

just plug it in. 6t^2+110t+3000=6000, thus 6t^2+110t-3000=0 and we factor but first we divide by 2. Thus we get the equation 2(3t+100)(t-15)=0. FYI if you did not learn what just happened please study your algebra book. Anyway, x= -100/3 or 15, but it can...

You can go Damon's way, or the graphing way/ comnpleting the square binomial way or you can go quadratic