Answer:
The coordinates of point B are (-3,-3).
Step-by-step explanation:
Let 
, 
and 
, then we have the following formula by vectorial definition of a line segment:
![B(x,y) -A(x,y) = \frac{3}{4}\cdot [C(x,y)-A(x,y)]](https://tex.z-dn.net/?f=B%28x%2Cy%29%20-A%28x%2Cy%29%20%3D%20%5Cfrac%7B3%7D%7B4%7D%5Ccdot%20%5BC%28x%2Cy%29-A%28x%2Cy%29%5D)
237-12=225=cost of 15 pizzas without delivery charge
225/15=15=cost per pizza
15*22=$330=cost of 22 pizzas
Answer:
7,12.2
Step-by-step explanation:
100+49=149
√149≈12.2
x^2+49=100
x^2=51
=7
3.14 can be expressed as 3.141592653589793238462643383279 with 30 decimal places.
<span><span><span><span><span>6x</span>y</span>−<span><span>2x</span>y</span></span>−<span><span>x2</span><span>y2</span></span></span>+<span><span>10x</span>y</span></span><span>=<span><span><span><span><span><span><span>6x</span>y</span>+</span>−<span><span>2x</span>y</span></span>+</span>−<span><span>x2</span><span>y2</span></span></span>+<span><span>10x</span>y</span></span></span><span>=<span><span><span><span><span>6x</span>y</span>+<span>−<span><span>2x</span>y</span></span></span>+<span>−<span><span>x2</span><span>y2</span></span></span></span>+<span><span>10x</span>y</span></span></span><span>=<span><span>(<span>−<span><span>x2</span><span>y2</span></span></span>)</span>+<span>(<span><span><span><span>6x</span>y</span>+<span>−<span><span>2x</span>y</span></span></span>+<span><span>10x</span>y</span></span>)</span></span></span><span>=<span><span>−<span><span>x2</span><span>y2</span></span></span>+<span><span>14x</span>y
</span></span></span>=−x2y2+14xy
