Can someone me with this i don’t get it

23.2 cm

Step-by-step explanation:

For this you need to use trigonometry as you know this is a right-angled triangle.

1) The side of 18.1 is the adjacent

2) The x is the opposite

3) BA is the hypotenuse

4) Now cross out the information you don't need which is the hypotenuse as there is no info.

5) In trigonometry you have SOH, CAH, TOA

6) In this case, we only have info on adjacent and opposite so we use TOA

7) We need to find opposite (x) so we do: opposite= tan (52) times 18.1= 23.2 (1 decimal place)

8) x= 23.2 cm

NOTE: If you're confused, check some videos about trigonometry which will walk through what I have done.

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0