The sum of 4x^2-3x+6-7x^2+3x+6

-3x^2 + 12

Step-by-step explanation:

You combine like terms. So 4x^2 -7x^2, 3x-3x, 6+6.

-3x^2+12

Step-by-step explanation:

4x^2-3x+6-7x^2+3x+6

collect like terms:

4x^2-7x^2-3x+3x+6+6

-3x^2+12

since -3x+3x have opposite sign the result is 0 so remove them from the expression

The answer will be : -3x^2+12

add the table and i will answer correctly

step-by-step explanation:

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