Answer:
Step-by-step explanation:
We can find the answer by multiplying the number of donuts, 12, by the price he sells each donut for, $0.75, and subtracting that answer from the price he paid.
By making the equation 12 × 0.75 = $9 - $3.99 we can find out that he makes $5.01 in profit.
A committee consists of eight students and five faculty.
how many possible five-person subcommittees are there?
Answer: We have a total of 13 people from whom we have to choose 5-person subcommittee.
Therefore, the number of possible ways is:
ways
how many that contain exactly three students?
Answer: The number of ways that will contain exactly three students is:
ways
how many that contain at least three students
Answer: The number of ways that will contain at least three students is:
ways
Answer:
<h2>The equation represents an ellipse with an eccentricity of 0.7.</h2>
Step-by-step explanation:
The given equation is
This equations represents a conic section in polar form, where the coefficient of the cosine function is the eccentricity of the conic section.
So, in this case, the eccentricity is , which indicates that the equation belong to an ellipse, because the eccentricy of ellipses are between 0 and 1.
Therefore, the equation represents an ellipse with an eccentricity of 0.7.
(-3/2,11/2) is the midpoint