Answer:
A' = (-3, 3)
Step-by-step explanation:
If the points are as follows:
A = (-3, -1)
B = (-2, -3)
C = (1, -1)
When reflecting across a y axis the x values remain the same.
When reflecting across y = 1 the y values will remain equal distant from y = 1.
A' = (-3, 3) y value = |-1 - 1| = 2 + 1 = 3
B' = (-2, 5) y value = |-3 - 1| = 4 + 1 = 5
C' = (1, 3) y value = |-1 - 1| = 2 + 1 = 3
For any integer n, all angles -150° n×360° will be coterminal with -150°. The appropriate choices are
-510° . . . . n=-1
210° . . . . n = 1
570° . . . . n = 2
6c+14=4+4c
6c-4c=4-14
2c= -10
c= -5
154 yd ²
the formula is (b • h) / 2 = A
so plug it in (14 • 22) / 2 = 154
Answer:
176.71 in²
Step-by-step explanation:
area = πr²
r is half the diameter so r=15/2=7.5
3.1415 · 7.5² ≈ 176.71 in²