Answer: : x = 4 and y = -2.
5x + 4y = 12 /*3
3x - 3y = 18 /*4
_____________
15x + 12y = 36
12x - 12y = 72
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15x + 12y + 12x - 12y = 36 + 72
15x + 12x = 36 + 72
27x = 108
x = 108/27
x = 4
3x - 3y = 18
3 * 4 - 3y = 18
12 - 3y = 18
12 - 18 = 3y
3y = -6
y = -6/3
y = -2
Step-by-step explanation:
By quadrant I presume you mean 1/4 of the circle. The perimeter will be 1/4 of the circle’s circumference plus the length of the two radii that complete the 1/4 section.
C=2 × pi × r = 28 pi
Perimeter = 28 pi +14+14. using 22/7 for pi
22/7 × 28 +28 = 88 + 28 = 116
116 cm is perimeter
Hope my answer will be correct
Answer:
5985 .3439
Step-by-step explanation: