Answer:
D. 
and 
.
Step-by-step explanation:
We have been given that one a recent trip, Cindy drove her car 290 miles, rounded to the nearest 10 miles, and used 12 gallons of gasoline, rounded to the nearest gallon.
The range of miles driven would be between 
because number of miles in rounded to nearest 10 miles.
The range of gallons of gasoline would be 
because number of gallons of gasoline in rounded to nearest gallon.
To find mileage, we will divide number of miles by number of gallons.
The possible number of gallons of gasoline will be 12.5 gallons for 285 miles to get the minimum number of miles.
Similarly, the possible number of gallons of gasoline will be 11.5 gallons for 295 miles to get the maximum miles.
Therefore, our required range would be and .
The sine of ∠I is represented by the ratio 63:65
Answer: $384
Step-by-step explanation:
1000- 1000=0
900-500=400
20-36=-16
400+-16=384
Addition and Subtraction in Scientific Notation. A number written in scientific notation is written as the product of a number between 1 and 10 and a number that is a power of 10. That is, it is written as a quantity whose coefficient is between 1 and 10 and whose base is 10.
So hmmm if you notice the picture below
bear in mind that, the vertex is "p" distance from the focus, and "p" distance from the directrix
now, the focus is at 4,6 and the directrix below that, meaning the parabola is vertical and opening upwards
and the vertex is half-way between the focus point and the directrix
