Answer:
71 times
Step-by-step explanation:
Diameter of BMX bike= 0.45m
Radius= 0.225m
Cirumference of BMX bike
C= 2πr
C=2*3.142*0.225
C= 1.4139m
In a 400-m race, the BMX bike will turn
=400/1.4139
=282.9 times
=283 times
Diameter of Mountain bike= 0.6m
Radius= 0.3m
Circumference of Mountain bike
C= 2πr
C=2*3.142*0.3
C=1.8852m
In a 400-m race, the Mountain bike will turn
=400/1.8852
=212.17 times
=212 times
Hence the difference is
=283 -212
=71 times
2 to 9 is the reduced ratio
Answer:
ctrl+k
Step-by-step explanation:
it allows you to search a url or paste a url in your assignment
Answer:
Step-by-step explanation: PURPLE
Hello :
<span> sin 2x = sin x and 0 ≤ x ≤ 2π.
all solutions :
2x= x +2k</span>π or x= π -x +2kπ ..... k in : Z
x = 2kπ or : x = π/2 + kπ
but :
<span>0 ≤ x ≤ 2π
</span><span>all values of x such that sin 2x = sin x and 0 ≤ x ≤ 2π are :
</span>k = 0 : x=0 , x= π/2
k=1 : x=2 π , x=3π/2
