Can i get help with 1 and 4 please?

1. 0

4. 6

Step-by-step explanation:

1. 2 x -1 + 1 ×2 = -2 + 2 = 0

2. 2x - 4 x 3 = 0

or 2x - 12 = 0

or 2x = 12

or x = 6

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh

57.09 minus 7.0435 equals

step-by-step explanation:

just subtrach them both and u get the answer of 50.0465