Given a scale factor of 2, it is easy to envision a small sized shape that has been enlarged or that has been made twice the size of the original shape.
The size of the resulting image with a scale factor of 2 is twice the size of the pre-image or the original image.
Let's name Janet's age x
julie is then x-3 years old
and the brother is x-3-8=x-11
and all three of them: x+x-3+x-11 are 55
so we count:
2x-3+x-11=55
3x-3-11=55
3x-14=55
add 14 5o both sides:
3x=69
divide by 3:
x=23
so Janet is 23, Julie is 23-3=20 and the brother is 20-8=12 years old!
Add full rotations of 360° degree until the angle of between 0° and 360°.
Sec (60)
The exact value is sec (60) is 2
2 is the answer 23:35677544
