Of the total 31 + 20 + 6 + 6 + 6 = 69 medals, the USA won 31 of them. 31/69 as a percentage is about 45%. Since there are 360° in a full circle, 45% of that is 0.45 * 360 = 162°.

6 0

4 years ago

Find the following function for A

Goshia [24]

F(x) = x+2
g(x) = 2x+1

$we \: have \: to \: find \: (fog)(x)$
= f(g(x))
=> (fog)(x) = (2x+1)+2
= 2x+3

4 0

3 years ago

Let r vary directly with s and inversely with t. Which equation represents this equation? Assume that a is a constant.

andrew11 [14]

$\bf \qquad \qquad \textit{combined variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\stackrel{\textit{\underline{r} varies directly with \underline{s} and inversely with \underline{t}}}{r=\cfrac{ks}{t}\qquad \textit{ and since a = k}\qquad r=\cfrac{as}{t}}$

7 0

3 years ago

1/2 (18x + 9) = 3/2 (x - 2)​

1/2 (18x + 9) = 3/2 (x - 2)