Rewrite without absolute value sign for different values of x:
y=|2x+5|−|2x−5|
if x<−2.5
if x>2.5
if −2.5≤x≤2.5
Answer in the following format:
if x < −2.5, y =

if x > 2.5, y =

if −2.5 ≤ x ≤ 2.5, y =

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Is a positive integer raised to a negative power always positive

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to