Answer: 10 seconds
Explanation:
m here means mean.
Mean or more accurately arithmetic mean, is calculated by adding all the terms and then dividing by the number of terms.
If there are 5 terms being 4, 5, 5, 6 and a fifth one which is x, and the mean is 6. The relevant expression is:
(4 + 5 + 5 + 6 + x) / 5 = 6
Solving it:
4 + 5 + 5 + 6 + x = 6 * 5
20 + x = 30
x = 30 - 20
x = 10 seconds
Answer: b. Collaboration that includes diverse backgrounds and perspectives can eliminate the need for software testing.
Explanation:
While collaborating and creating a team that includes diverse backgrounds and perspectives is good for anticipating the needs of the people that will use the software as well as avoid bias, it does not take away the need for software testing.
Software testing must always be carried out as it is a practical test that actually shows whether the software developed is going to match the needs and requirements of the end users.
D. Applying for more credit cards