Answer:
Given:
The radius of a wheel =r=35 cm=0.35 cm.
The speed it must keep =s=66 km/h=
60
66×1000
m/min=1100 m/min
To find out:
The number of revolution =n, it makes per minute to maintain that speed.
Solution:
The circumference =C of the wheel =2πr=2×
7
22
×0.35 m=2.2 m=C
The distance the wheel covers in 1 min=d=1100 m.
Now the distance =d covered by a wheel in one revolution = the circumference of the wheel.
∴ Here the number of revolution =n=
C
d
=
2.2
1100
=500.
43.94 / 5.2 = 845 is impossible because it would mean that 845 * 5.2 is equal to 43.94 which would be a non sense.
Even if you multiply 84.5 * 5.2 you will still get a bigger result than 43.94 obviously.
The only way this division would make sense, it is if the result is 8.45 so the decimal point should be before the 4 and not after it so June is not correct.
GOod luck :)
Answer:
Step-by-step explanation:
Use the Pythagorean Theorem to test it.
6² + 8² ≟ 10²
36+64 ≟ 100
100 = 100
It is a right triangle.
Commutative property of multiplication(numbers)
B. 1/27
1. you switch the denominator and the numerator (3/1 goes to 1/3).
2. then you take the exponents value (3) and put that as the exponent for 1/3
3. 1/(3^3) = 1/27
