Answer:
The answer is B.180°.
Step-by-step explanation:
The figure is rotationally symmetric is after a rotation of a given angle, it still look the same.
In this case of a rectangle, the only way to rotate it so that is look the same, is by rotating it by multiple of 180°, so that the up and down sides flip over, as well as the right and left sides.
Therefore, the only option that applies is B.180°
Answer:
210-20x=y
Step-by-step explanation:
150 is after 3 weeks of withdrawing 20 so $60
150+60=210 is the beginning amount
210-20x=y
Answer:
The sum of the series is 749
Step-by-step explanation:
Given
Required
The sum of the series
This is calculated using:
Substitute 14 for n
Substitute values for a1 and a14