what is the measure of the exterior angle ?
70
180
110

answer:

110

step-by-step explanation:

a bump is 180 degrees as well as a triangle. so 90+20=110 and 180-110=70. meaning 180-70 =110

answer:

110

step-by-step explanation:

solve for the angle in the triangle

solve for the "? "

answer:

d =   0

one real solution

step-by-step explanation:

given equation is :

4x²+20x+25=   0

general quadratic equation is ax²+bx+c =   0

the formula to find discriminant is :

d =   b²-4ac

if d =   0 then quadratic equation will have one real solution.

comparing given equation with general equation,we get

a =   4 , b=   20 and c =   25

putting above values in formula of discriminant,we get

d=   (20)²-4(4)(25)

d=   400-400

d=   0

if d =   0 then quadratic equation will have one real solution.

hence , given equation have one real solution.

answer:

the similitary ratio is 3: 5

step-by-step explanation:

to answer this question let's call:

to volume 1.

let's call:

to volume 2

the relation k of simiiltud between both volumes we find dividing between