He is wrong because he didnt fully simplify the answer, and the answer is $13 per hour
Answer:
Center: the middle of the circle. Radius: the fixed distance from the center to any point on the circle is called the radius.
Step-by-step explanation:
The center is a fixed point in the middle of the circle; usually given the general coordinates (h, k). The fixed distance from the center to any point on the circle is called the radius.
Its option C
40 × (¹/₄)⁰ = 40
40 × (¹/₄)¹ = 10
40 × (¹/₄)² = 5/2
40 × (¹/₄)³ = 5/8
40 × (¹/₄)⁴ = 5/32
C = 2πr
C = 2π(10)
C = 20π
C = 62.8
In short, Your Answer would be 62.8
Hope this helps!
Answer:
x = 2.8 hours
Explanation
Total distance = 350 km
Time period = 3 hrs
Hence we need to formulate an equation...,
Distance = Speed × Time
; Distance covered travelling at 120 = 120x Since the total time period was 3hrs...then the remaining time is (3 - x)
;Distance covered travelling at 60 = 60(3- x)
The equation is going to be...,
; 120x + 60(3 - x) = 350...since total distance is 350 km
; 120x + 180 - 60x = 350
; 60x = 170....divide both sides by 60
Hence..., x = 2.8 hours
