A multiple choice question where all the answers are wrong, says nothing about math or the mathematical understanding of the general population.

This is engagementbait and its hooked you too.

Public / Private key pairs are used for securely transmitting encrypted documents. The publication will generate a pair of linked keys, and publish one of them, the public key, while retaining the private key.

If you encrypt a document using the public key from the publication, your document can only be decrypted by the holder of the private key. So any whistleblower wanting to contribute can use that key to make sure no one other than the publication can read their submissions.

The same can be done in reverse. The publisher can use their private key to encrypt a document that only the public key can unlock. Though anyone can decrypt it because the key is public, this verifies the sender because it can only have been sent by the holder of the private key.

Usually they are published to a keyserver, actually printing the key is uncommon.

security through obscurity is not security

No they can't. This is what's happened every time trump tried to cut state funding. Courts don't let the feds overstep their powers over states by threatening funding. Courts have ruled very consistently on this.

Just for comparison, on their 9th test flight the Apollo program they had already successfully reached orbit 5 times.

The 9th test flight of the Soyuz was their 7th time reaching orbit.

Elon's 9th attempt is his second time reaching the bottom of the Indian ocean. Shows the level of proficiency in spacex.

I expect the new models to be harmful to sales.

Because tesla rarely makes changes to their cars year over year, you can buy a tesla now and have one that looks like you bought it before elon publicly went off the deep end. There's still plausible deniability with most of their models.

But now, anyone buying a model Y is getting a car that obviously could only have been purchased during trump's second term. There's no plausible deniability. The distinctive front and rear light bars scream:

"I chose to buy this car after watching the CEO do the nazi salute twice on national television."

TIL every year with a rent increase is a recession. Whenever housing prices increase faster than income that's a recession. When college tuition goes up faster than incomes that's a recession.

carpet mold?

I see this posted a lot as if this is an issue with capitalism. No, this is what happens when you have to deal with maintaining the power grid using capitalism as a tool.

Power generation needs to match consumption. Always constantly the power grid must be balanced. If you consume more than you can generate, you get a blackout. If you generate more than you use, something catches fire.

Renewables generate power on their own schedule. This is a problem that can be solved with storage. But storage is expensive and takes time to construct.

Negative prices are done to try and balance the load. Its not a problem, its an opportunity. If you want to do something that needs a lot of power, you can make money by consuming energy when more consumption is needed. And if you buy a utility scale battery, you can make money when both charging and discharging it if you schedule it right.

That's not renewables being a problem, that's just what happens when the engineering realities of the power grid come into contact with the economic system that is prevalent for now.

$90 to replay a 8 year old wiiu game. Why would anyone?

"How is the RAF so incredibly good at spotting German planes at night and in the fog?"

don't say radar don't say radar don't say radar "ummm yes... its carrots. Carrots, lots of carrots, that's it! Its because they... um... improve eyesight."

"niche market," is a way of saying they made a bad product few want.

pickup trucks are hardly a niche product especially in the us