A baseball is traveling (+60 m/s) and is hit by a bat. It leaves the bat traveling (−70 m/s). What is the change in the velocity?

Remember that direction is what makes velocity different than speed.

–130 m/s

–10 m/s

10 m/s

130 m/s

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.