The base angles of an isosceles triangle are equal
The base angles are 15 degrees, while the vertex angle is 150 degrees
The base angles are given as:
Base = (6a- 3) and (a + 12)
So, we have:

Collect like terms


Divide both sides by 5

Substitute 3 for a in Base = (6a- 3),



So, the base angle is 15 degrees.
The vertex angle is calculated using:

So, we have:


Hence, the vertex angle is 150 degrees
Read more about isosceles triangles at:
brainly.com/question/25739654
2_10 i'm guessing means 2/10, so in percentage, it would be 20%
Answer:
I'm sorry I really need points to ask a question for a really big math test! :(( pls no report this is a huge test
Step-by-step explanation:
1) Zoe's town
April = 5 7/8 inches
May = 2 1/8 inches less than in April
5 7/8 ⇒ ((5*8)+7)/8 = 47/8
2 1/8 ⇒ ((2*8)+1)/8 = 17/8
47/8 - 17/8 = 30/8 ⇒ 3 6/8 ⇒ 3 3/4 inches rainfall in May.
April rainfall : 5 7/8 inches
May rainfall : 3 3/4 inches
Greatest Prime number less than 50 is 47. So, 47 students plus 3 teachers. There is a total of 50 people going on the trip.
1,354 ounces of paint ÷ 6 ounces per jar = 225.66 jars or 226 jars