Which rectangular equation is equivalent to the polar equation r sin theta=-2

The rectangular equation that is equivalent to the given polar equation is:

y= -2

Step-by-step explanation:

We know that the polar coordinate of a equation are related to the rectangular coordinates of the equation as:

where,

Now we are given that:

Also,

Hence, on converting the given polar equation to the rectangular equation we get:

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.