Mark Zuckerberg on Taking Risks and Finding Talented People

We’re asked to plot the image of quadrilateral ABCD. So that’s this blue quadrilateral here under a reflection across the x-axis. So that’s the x-axis, and we have our little tool here on Khan Academy where we can construct a quadrilateral, and we need to…

Overnight cost two nights. I mean, we’re selling the plane. Here’s the day in my life handling crisis and unexpected challenges. I arrive at the office early to get a head start. My first task is ensuring everything is in order. During our morning briefi…

Every man, woman, and child. The world’s largest buyer of coffee, the US, has to import nearly all of this as the coffee trees from which caffeine is harvested will only grow at commercial levels between the Tropic of Cancer and the Tropic of Capricorn in…

We’ve got the biggest dreams of putting our eyes on other worlds, traveling to them, making them our home. But how do we get there? The stars are so far apart. We would need sailing ships that could sustain human crews over the longest haul of all time. T…

Johanna jogs along a straight path for (0 \leq t \leq 40). Johanna’s velocity is given by a differentiable function (v). Selected values of (v(t)), where (t) is measured in minutes and (v(t)) is measured in meters per minute, are given in the table above …

What is an entrepreneur, and can you learn to be one, or does it have to be in your DNA? When I was a young kid, I always knew I was going to start companies, but can you learn it if you’re not born with that gene? This is the age-old question you’ve rai…