Let
C---------> the circumference of a circle
D---------> diameter of a circle
r----------> radius of a circle
we know that
C=2*pi*r
D=2*r
so
C=D*pi-------------> pi=C/D
<span>Pi is defined as the ratio of the circumference of a circle to the diameter of that Circle
when you multiply the diameter in both numerator and denominator
pi*D=(C/D)*D------> pi*D=C
and the diameter is two times the radius
so
D=2*r
C=pi*D------> C=pi*(2*r)-----> C=2*pi*r
therefore
the answer is the option D
</span>Two times r equals the diameter of the circle. Pi equals the circumference divided by the diameter. When you multiply, the diameter is in both the numerator and the denominator, which cancels out, leaving the circumference
The answer is subtract two from both sides. Explanation: because it males the equation even and easier to solve.
Answer:
$190.75
Step-by-step explanation:
$175 × 0.09 = $15.75
$175 + $15.75 = $190.75
4/7m = 2/7(2m + 1)
4/7m = 4/7m + 2/7
4/7m - 4/7m = 2/7
0 = 2/7 (incorrect)
no solution
Answer:
D) As the gas mileage increases, the cost of driving a fixed distance increases.
Step-by-step explanation:
Hello!
Given the variables
X₁: Gas mileage of a car
X₂: Cost of driving 500 miles
Normally the variable that changes more is the gas mileage of the car, depending on the type of the car or the age of different cars from the same model and brand, the amount of gas used to cover a fixed distance varies.
From a logical point of view you'd expect that the more gas the car consumes, the more it will cost to drive a fixed distance. So the correct option is D)
Options:
A) As the gas mileage increases, the cost of driving a fixed distance decreases.
B) As the cost of driving a fixed distance increases, the gas mileage decreases.
C) As the cost of driving a fixed distance decreases, the gas mileage increases.
D) As the gas mileage increases, the cost of driving a fixed distance increases.
I hope this helps!