Read this excerpt from Reality is Broken It's a bit counterintuitive to think about the future in terms of the past. But as a research director at the Institute for the Future
- a nonprofit think tank in Palo Alto, California, and the world's oldest future-forecasting organization—I've learned an
important trick to develop foresight, you need to practice hindsight.
How does the underlined concession help McGonigal argue that the history of gameplay can help people predict its future?
A
It shows that the author agrees with the opposing viewpoint on the value of gaming
B
It demonstrates that the author has doubts about using the past to predict the future.
С
It allows the author to rebut the claim that historical events are never repeated.
D
It gives the author an opportunity to establish herself as an authority on the topic.

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

a and c

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b