The corporate research centers for three companies have the following employees: U. S. Steel
110
Alcoa
750
Bayer Science
250
If a research employee is selected at random, find the probability that the employee is employed by U. S. Steel or Alcoa.

0.10
0.22
0.68
0.77

Me n o w. i need t h i s. 10 points

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?

Which equation can be solved to find x the measure of jk in the apex