SecBcotB= sinB hope this helps you
Answer:
a. Graph A: Cost vs Volume
Graph B: Calories vs Volume
b. Graph B (Calories vs Volume)
c. k = 15
Step-by-step explanation:
a. It is not possible for a volume of 10 oz of drink to be sold for $150. It doesn't make common sense. Also, calorie level of 150 in 10 oz of drink seem plausible.
It makes more sense if 10 oz of the drink cost $3.75. Therefore, the graphs should be titled as follows:
Graph A: Cost vs Volume
Graph B: Calories vs Volume
b. The quantities in Graph B (Calories vs Volume) appear to be in a proportional relationship. We know this because if we try drawing a line to connect the points on the graph, it will give us a straight line. A straight line connotes proportionality.
Also the ratio of the quantities of the two known points given are the same. I.e.
Therefore the quantities compared in Graph B shows a proportional relationship.
c. Constant of proportionality =
Answer:
2
Step-by-step explanation:
The center of the circle is (7,8) and the equation of the given circle is (x- 7)^2 + (y - 8)^2 = 16
<h3>How to determine the equation of the circle?</h3>
The given parameters are:
Center (a,b) = (7,8)
Point (x,y) = (11,8)
Calculate the radius (r) using:
So, we have:
Evaluate the expression
The circle equation is then calculated using:
So, we have:
Evaluate the exponent
Hence, the equation of the given circle is (x- 7)^2 + (y - 8)^2 = 16
Read more about circle equations at:
brainly.com/question/1559324
Remember d=rt
so its 3.5=r(0.5)
divide 3.5 by 0.5, which is 7. His rate is 7 miles per hour.