What is the value of x?
A-17
B-20
C-28
D-38

B

Step-by-step explanation:

Let's use the Pythagorean Theorem.

x² + 21² = 29²

x² + 441 = 841

x² = 400

x = 20

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b