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What does s equals 3 ft mean?
s=3 ft
What is velue of 10's squre - 10's squre equals?
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Ten x squared minus 17 x equals 63?
actually,10x squared minus 17 equals 63 would come out to x equals the square root of 8.to work this out, you would first at 17 to both sides to get 10x squared alone.63 plus 17 equals 80. you now have 10x squared equals 80. then divide each side by ten to get x squared alone. 80 divided by 10 equals 8. now you have x squared equals eight. finally, to find x, you find the square root of each side. x squared's square root is x, and 8's square root is 2.82842712 but I'm assuming you only have to write out x=√8.but the other answer was a good try:)Improved Answer:-10x2-17x = 6310x2-17x-63 = 0When factored: (5x+9)(2x-7) = 0Therefore the roots of the quadratic equation are: x = -9/5 and x = 7/2
If an object is thrown downward with an initial velocity of 30 feet per second from a height of 80 feet above the ground how long will it take to hit the ground?
The solution is as follows. First find the final velocity. Second use the final velocity to find the time. (final velocity squared) = (initial velocity squared) + 2gh (vf)^2=(vi)^2+2gh (vf)^2=(30ft/s)^2+2(32ft/s^2)(80ft) (vf)^2=900(ft/s)^2+5120(ft/s)^2=6028(ft/s)^2 taking the square root yields vf=77.59(ft/s) The final velocity and the time are related by the equation vf=vi+gt, rearranging t=(vf-vi)/g t=[77.59(ft/s)-30(ft/s)]/32(ft/s^2=47.59(ft/s)/32ft/s^2=1.49s You can check the answer as follows: h=vi(t)+(1/2)gt^2 h=30(ft/s)(1.49s)+(1/2)(32(ft/s^2)(1.49s)^2 h=44.7ft+16(ft/s^2)[2.22s^2) h=44.7ft+35.7ft=80.2ft which is equivalent to the 80 ft in the original problem except for rounding errors. Note: the notation here is awkward but I haven't found an equation editor iw Wiki. h^2 means h squared ft/s^2 means feet per second squared
What is 10 x something equals somwthing - 10?
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