(1 point)
1. the biggest problem when using metals (or cowry shells) for trading is
no one can agree on an exchange rate
large amounts become very heavy to carry around
they break over time
people cannot trust their value
2. the gold standard is__ (1 point)
paper currency based
no longer used by many countries
used by all countries today
based on measurements in pounds
3. when using metal as the exchange basis, two coins must have the same value if
(1 point)
they are the same weight but different metals
they are different weights but the same metals
they are different weights but different metals
they are the same weight and the same metal
4. if gold is currently trading at $800.00/oz. and you inherited a gold coin worth $1600.00, how much does
the coin weigh?
2 oz.
4 oz.
24 oz.
12 oz.

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

16.80 times .20= 3.36

step-by-step explanation:

i would love   to but there is no graph shown

step-by-step explanation:

i am so sorry