If x = 1 and y = 1
Then the value of x-y + xy is

xy together mean x times y which equals 1

x-y = 0

the the sum is 1

Step-by-step explanation:

1-1 + 1(1)

= 1

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.

87%

step-by-step explanation:

apex answer