If mzABD = 100° and mZDBC = 30°,
then mZABC = [? ]°

 130°

Step-by-step explanation:

∠ABD = 100° (given)

∠DBC = 30° (given)

Angle Addition Postulate states: ∠ABD + ∠DBC = ∠ABC

                                                         100°  +    30°  = ∠ABC

                                                                 130°        = ∠ABC

130°

Step-by-step explanation:

Given: m<ABD=100° and m<DBC=30°

To find m<ABC, we must add up the two other angles.

100°+30°=130°

Hope this helped :D

it’s supposed to be -4+45=41

step-by-step explanation:

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.