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3 years ago

When did the U.S dollar become part of a total fiat system

2 answers:

lina2011 [118]3 years ago

8 0

1971, Richard Nixon officially took the U.S. off of the gold standard by canceling a policy that allowed other countries to convert dollars into gold. At that point, the U.S. dollar officially became a fiat currency

VladimirAG [237]3 years ago

4 0

I believe in the 20th century, if you need an exact date reply with yes!

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A train goes at a constant speed. If it covers 150 miles in 2 1 2 hours,

Ludmilka [50]

Answer:

x = 1 2/3 hours

Step-by-step explanation:

We can use ratios to solve

150 miles 100 miles

---------------- = ---------------

2.5 hours x hours

Using cross products

150x = 2.5*100

divide each side by 150

150x/150 = 250/150

x = 1 2/3 hours

5 0

2 years ago

Find the slope of the graph of the equation at the given point. (If an answer is undefined, enter UNDEFINED.)

juin [17]

Answer:

Undefined.

Step-by-step explanation:

We want to find the slope of the graph of the equation:

$\displaystyle x^2 - y^2 = 81$

At the point (9, 0).

In other words, we want to evaluate dy/dx when x = 9 and y = 0.

Find dy/dx. We can take the derivative of both sides with respect to x:

$\displaystyle \begin{aligned} \frac{d}{dx}\left[ x^2 - y^2\right] = \frac{d}{dx}\left [ 81\right] \\ \\ 2x - 2y \frac{dy}{dx} &= 0 \\ \\ \frac{dy}{dx} = \frac{x}{y}\end{aligned}$

Then the slope of the graph at the point (9, 0) will be:

$\displaystyle \begin{aligned} \frac{dy}{dx}\Big|_{(9, 0)} &= \frac{(9)}{(0)} \\ \\ &= \text{Und.}\end{aligned}$

In conclusion, the slope of the graph at the point (9, 0) is undefined.

7 0

2 years ago

By definition, the _______is same as the degree of the term with the highest /largest degree

alexgriva [62]

I think it might be term

8 0

2 years ago

Which equation represents a line which is perpendicular to the line 6x+y=1

Andre45 [30]

I believe it’s A because if it is perpendicular you would have to flip 6X and change the sign so therefore it would be A. In slope intercept form it would be y=-6x+1.

6 0

3 years ago

Please help, and show work thank you :)

frosja888 [35]

Having a $75 added cost to the total price, we can presume they will never equal. It is easy to see if you make it algebraic:

$m=months\\t=total\\\\ProviderA => t = 39.95m\\ProviderB => t = 39.95m+75$

They will never equal each other.

3 0

3 years ago