Answer:
Option D is correct
Step-by-step explanation:
Given the expression:
Use exponents rule:
Apply the rule in the given expression;
Therefore, the correct simplification of the given expression is,
Answer:
Friction
Step-by-step explanation:
Because friction between the floor and the ball made the ball stopped from rolling.
Answer:
x = 70
Step-by-step explanation:
The total sum of all of the angles in a parallelogram is equal to 360 degrees. Opposite angles are also congreuent meaning that angle ADC and angle ABC are equal. Adding the sum of the two angles gives you 220. Subtract 220 form 360 and you get 140 which is equal to the sum of angles BCD and BAD. Angles BCD and BAD and the sam so dividing 140 by 2 would give you the angle measure of x.