Answer: 1820
Step-by-step explanation:
The first can be selected in 16 ways, the second in 15 ways, the third in 14 ways and the last in 13 ways
i.e. 16 x 15 x 14 x 13 => 43680
However, the order of the candidates does not matter and they can be selected in 4 x 3 x 2 x 1 => 24 ways
so, 43680/24 => 1820
okay so the little 2 above the 3 is called Exponents and its and easier way of multiplication. So in pemdas there would be parentheses then Exponents ect. so Exponents is after parenthesis.
3x2x2=12
12+ the amount of 1x2
1x2= 2 so
12+2=14
brainliest please abt to get expert
Ah , such simple math brings the nostalgia of primary school. Good old days.
1/2 * 5/6 = 1*5 / 2*6 = 5 / 12
Answer:
the speed of sound is 12 miles per minute
Step-by-step explanation:
To know the speed we have to divide the distance by the time because the speed of sound is constant and we have to use a formula of uniform rectilinear motion
Uniform rectilinear motion: When an object travels at a constant speed with zero acceleration it is known as uniform rectilinear motion
The distance it gives us is 1 mile and the time it gives us is 1/12 minute
v = speed
v = 1mi / (1/12 m)
v = 12 mi/m
in the result as we can see we have a whole number (12)
the speed of sound is 12 miles per minute
Supplementary angles.
Supplementary angles are two angles that add up to 180 degrees.