Find the sum of the interior angles of a 22-gon. Since the polygon has 22 sides, we can substitute this number for n: (n 2)180˚= (22 2)180˚= 20180˚= 3600˚. Each angle of a regular polygon measures 157.5˚.

8 0

3 years ago

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Find the y-intercept and x-intercept of the line.<br> – 3x+9y= 14

pickupchik [31]

Answer:

$\huge\boxed{x-intercept=-\dfrac{14}{3}=-4\dfrac{2}{3}}\\\boxed{y-intercept=\dfrac{14}{9}=1\dfrac{5}{9}}$

Step-by-step explanation:

$-3x+9y=14\\\\x-intercept\ \text{for}\ y=0:\\\\-3x+9(0)=14\\-3x+0=14\\-3x=14\qquad\text{divide both sides by (-3)}\\\boxed{x=-\dfrac{14}{3}=-4\dfrac{2}{3}}}$

$y-intercept\ \text{for}\ x=0:\\\\-3(0)+9y=14\\0+9y=14\\9y=14\qquad\text{divide both sides by 9}\\\boxed{y=\dfrac{14}{9}=1\dfrac{5}{9}}$

3 0

3 years ago

One day a store sold 32 sweatshirts, white ones cost $11.95 and yellow ones cost $11.50. in all, $373.40 worth of sweatshirts we

Scrat [10]

32=w+y, w=32-y...

11.95w+11.5y=373.4, using w from above gives us:

11.95(32-y)+11.5y=373.4

382.4-11.95y+11.5y=373.4

-.45y=-9

y=20

So 20 yellow and (32-20) 12 white shirts were sold.

3 0

3 years ago

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