Answer:
A) 55°
B) 12°
C) 100°
Step-by-step explanation:
A) By double reflecting it over two intersecting lines, the angle between the two intersecting lines would simply be half of the angle at which it was rotated.
Thus, angle between the two intersecting lines = 110/2 = 55°
B) Similarly, for rotating a shape by 24°,
angle between the two intersecting lines = 24/2 = 12°
C) Similarly, for rotating a shape by 200°;
angle between the two intersecting lines = 200/2 = 100°
Answer:
question 10 is B
Step-by-step explanation:
Answer:
The answer is c
Step-by-step explanation:
Find out the determinant
we have
2x-y=4
3x+y=1
so
D=(2)(1)-(-1)(3)
D=2+3
D=5
therefore
<h2>the answer is the second option</h2><h2>Verify</h2>
solution (1,-2)
equation 1 -------> 2(1)-(-2)=4 -------> 4=4 is true -----> is ok
equation 2 ------> 3(1)-2=1 -----> 1=1 ----> is true -----> is ok
The answer is the experience