Determinant = b² - 4ac = (-10)² + 4*1*25 = 100 - 100 = 0
So it has 1 solution.
Answer is D
Answer:
7x8x10
Step-by-step explanation:
there are lots of possible answers, ranging from 1x48x10 to 7x8x10. I'm thinking there must be another data point to determine it more precisely.
Answer:
60 miles.
Step-by-step explanation:
Given:
We rent a car for the day and are offered two payment options.
With option A we pay $25 flat rate plus $0.15 per mile.
With option B we pay a $10 flat rate plus $0.40 per mile.
Question asked:
For what amount of miles would the cost of option A be equal to option B ?
Solution:
<u>Let amount of miles for which the cost of option A be equal to option B = </u><u />
For option A, we pay =
For option B, we pay =
Now, to find amount of miles for which the cost of option A be equal to option B, we will equalize the equation to find the value of
By subtracting both sides by 10
By subtracting both sides by
By dividing both sides by
Therefore, for 60 miles, the cost of option A will be equal to option B.
Cylinder: height = 16 cm ; radius = 5 cm
cone: height = 12 cm ; radius = 4 cm
Volume of cylinder = 3.14 * (5cm)² * 16cm = 1,256 cm³
Volume of cone = 3.14 * (4cm)² * 12cm/3 = 200.96 cm³
Volume of air space = 1256 cm³ - 200.96 cm³ = 1,055.04 cm³