Answer:
See below.
Step-by-step explanation:
ABC is an isosceles triangle with BA = BC.
That makes angles A and C congruent.
ABD is an isosceles triangle with AB = AD.
That makes angles ABD and ADB congruent.
Since m<ABD = 72 deg, then m<ADB = 72 deg.
Angles ADB and CDB are a linear pair which makes them supplementary.
m<ADB + m<BDC = 180 deg
72 deg + m<BDC = 180 deg
m<CDB = 108 deg
In triangle ABD, the sum of the measures of the angles is 180 deg.
m<A + m<ADB + m<ABD = 180 deg
m<A + 72 deg + 72 deg = 180 deg
m<A = 36 deg
m<C = 36 deg
In triangle BCD, the sum of the measures of the angles is 180 deg.
m<CBD + m<C + m<BDC = 180 deg
m<CBD + 36 deg + 108 deg = 180 deg
m<CBD = 36 deg
In triangle CBD, angles C and CBD measure 36 deg making them congruent.
Opposite sides DB and DC are congruent making triangle BCD isosceles.
4 less than five times a number is -11:
5x - 4 = -11
Answer:
its sophisticated but answer is 3
Step-by-step explanation:
you have to dive deep into it and research
Answer:
y=2/3x-8
Step-by-step explanation:
2x-3y=24
3y=2x-24
y=2/3x-24/3
y=2/3x-8
y=mx+b where m=slope and b=y-intercept.
5^4 * 5^(-6) * 5
= 5^4 * 5^(-6) * 5^1
= 5^[ 4 + (-6) + 1 ]
= 5^[ 4 - 6 + 1 ]
= 5^(-1) <----- this is the answer.
I hope this helps. =)