ewalker1917
21.12.2019 •
Mathematics
Sophie germain in 1815, sophie germain won a mathematical prize given by the institut de france for her work on the theory of elasticity. the prize was a medal made of 1 kilogram of gold. how much is the medal worth today in u.s. dollars and in euros? to you solve this problem, you need to know a few things. first, gold is measured in troy ounces which are a little larger than a regular ounce. there are 32.150747 troy ounces in a kilogram of gold. second, the price of gold today (12/3/19) is $1,471.30 per troy ounce. third, the exchange rate today for dollars and euros is 1 us dollar is 0.9 euros.
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Ответ:
Step-by-step explanation:
The function y = 2x^2 + 4x has a parabolic graph that opens up.
*In factored form we have y = 2x(x + 2); if we set this equal to zero and solve for x, we obtain {-2, 0}, the roots of this function.
*The axis of symmetry is halfway between these roots: x = -1. The y-value of the vertex is the value of the function at x = -1: f(-1) = 2(-1)^2 + 4(-2) = -6. Thus, the vertex is (-1, -6).
* The y-intercept is (0, 0), since y = 0 when x = 0.
Graph the points shown and draw a smooth curve through them, remembering that this parabola opens up.