Answer:
Step-by-step explanation:
4x+2y = -24 -------------(i)
<u> -4x+y = 12 -</u>------------(ii)
add (i) &(ii) 3y = -12
y = -12/3
y = -4
Put y = (-4) in (i)
4x + 2*(-4) = -24
4x - 8 = -24
4x = -24 + 8
4x = -16
x = -16/4
x = -4
Answer:
1). x = 81
2). x = 84
Step-by-step explanation:
1). By applying geometric mean theorem in the given triangle,
![\frac{x}{18\sqrt{14}}= \frac{18\sqrt{14}}{56}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B18%5Csqrt%7B14%7D%7D%3D%20%5Cfrac%7B18%5Csqrt%7B14%7D%7D%7B56%7D)
56x = (18√14)²
56x = 4536
x = ![\frac{4536}{56}](https://tex.z-dn.net/?f=%5Cfrac%7B4536%7D%7B56%7D)
x = 81
2). By applying geometric mean theorem,
![\frac{x}{8\sqrt{21}}= \frac{8\sqrt{21} }{16}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B8%5Csqrt%7B21%7D%7D%3D%20%5Cfrac%7B8%5Csqrt%7B21%7D%20%7D%7B16%7D)
16x = (8√21)²
16x = 1344
x = ![\frac{1344}{16}](https://tex.z-dn.net/?f=%5Cfrac%7B1344%7D%7B16%7D)
x = 84
The answer would be 5 hours and 50 minuets. It would be this because 2230 equals 10:30 count the hours between 1030 and 430 6 hrs then minus 10 min because the last hr isnt a full hour because it doesnt make it to 430.