<h2>
Option C is the correct answer.</h2>
Step-by-step explanation:
Diameter, D = 42 feet
Circumference = πD = π x 42 = 131.95 feet
Number of rotations per minute = 3
Total time = 5 minutes
Total rotations = 5 x 3 = 15
Distance traveled per rotation = 131.95 feet
Distance traveled in 15 rotations = 15 x 131.95 = 1978 feet
Option C is the correct answer.
2,4,6,8,10,0,0,0,0,0,1,4,9,16,25,1,2,3,4,5
(9x - 7) - (5x + 10 )
2x - 15x
- 13x
The answer to the given question is letter "B".
We will compute first individually
The distance at 1 min. =60
At 2 minutes= 60 +0.4*60 = 84
At 3 minutes = 84 +0.4*84 = 117.6
At 4 minutes = 117.6 + 0.4*117.6 = 164.64
At 5 minutes = 164.64 + 164.64*0.4 = 230.5
At 6 minutes = 230.5 + 230.5*0.4 = 323
Since the answer is letter "B" when we calculate using this equation in B, we will arrive at the same answer at 6 minutes:
D = 323
Answer: First Solution
Step-by-step explanation:
We can solve this by using the Quadratic Formula, which is
(-b±√b²-4ac)/2a
First off we can find the discriminant. Replacing b with 7, a with 2, and c with -5 gives us a discriminant of 89. But there are two solutions with the discriminant 89.
The second deciding factor would be finding the denominator, which is 2a. Replacing a with 2 gives us 4.
We already know the solution is the first one, but it's important to find the value of the first part of the numerator, -b. Using that we can tell that it's -7, and not 7.