Which expressions show the expanded form for 840.02? choose all answers that are correct. a. 8 × 100 + 4 × 10 + 2 × b. 8 × 100 + 4 × 10 + 2 × c. 8 × 100 + 4 × 10 + 4 × 0 + 0 × + 2 × d. 8 × 100 + 4 × 10 + 0 × 1 + 0 × + 2 ×

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180