Answer:
(1+√7,0),(1−√7,0)
Step-by-step explanation:
You can't factor the expression evenly, so use the quadratic formula.
a = 2
b= -4
c= -12
End result: (1+√7,0),(1−√7,0)
Have vehicles gotten more fuel-efficient over the years? Between 1960 and 1999 the size and shape of automobiles in the United S
2 answers:
Answer:
9.20 gallons of fuel used per passenger car.
Step-by-step explanation:
The given table shows average fuel consumption per year per passenger of fuel consumed by the vehicles in United States.
We have to determine the average rate of change in gallons of used per passenger car between 1960 to 1970.
On a graph average rate of change, of fuel used per passenger car
=
=
Therefore, answer is 9.20 gallons of fuel used per passenger car.
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Answer:
Step-by-step explanation:
Standard form of a circle is given by,
(x - a)² + (y - b)² = r²
Here, (a, b) is the center and 'r' is the radius of the circle.
For a circle having center (8, -4) and radius r = 1
Equation of the circle will be,
(x - 8)² + (y + 4)² = 1²
(x - 8)² + (y + 4)² = 1
Option (1) is the answer.
Question (2)
Circle with the center (-1, 0) and a point (2, -4) on it,
Radius of the circle = Distance between the center and the given point on circumference
=
=
=
= 5
Therefore, equation of the circle will be,
(x + 1)² + (y - 0)² = 5²
(x + 1)² + y² = 25
Answer:
Step-by-step explanation:
geometric progresion formula: