The lifespan of a machine is normally distributed with a mean of 18.2 years and a standard deviation of 1.7 years. The manufacturer will replace a machine if it breaks before the guarantee period is over. If the manufacturer is willing to replace no more than 5% of the machines, find the length of time the manufacturer should set for the guarantee PLSS I NEED AN ANSWER FAST !!

Which statement is true? n is a point of tangency on circle p. pt is a secant of circle p. is a secant of circle p. vu is a tangent of circle p.

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.

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.