What is m∠abc? justify your reasoning. using the addition property of equality, 40 + 15 = 55, so m∠abc = 55°. using the subtraction property of equality, 40 − 15 = 25, so m∠abc = 25°. using the angle addition postulate, 15 + m∠abc = 40. so, m∠abc = 25° using the subtraction property of equality. using the angle addition postulate, 15 + 40 = m∠abc. so, m∠abc = 55° after simplifying.

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done

Askateboard ramp is in the shape of a right triangle what is the height of the ramp

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units