ANSWER
B. 12
EXPLANATION
The given triangle is isosceles, because two of the arms are equal.
The angles directly under these two arms and the base are equal.
Therefore the three angles of the isosceles triangle are
84°, 4x°,4x°
The sum of these angles is 180°


Group similar terms,


Divide both sides by 8

The correct choice is B.
Multiply what is outside the parenthesis by what is inside.
the answer is 36y-63
hope i helped!!
<h3>
Answer: 8(x^2-3)</h3>
Since 24 = 8*3, we can factor out the GCF 8 like so
8x^2 - 24 = 8*x^2 - 8*3 = 8(x^2-3)
This is using the distributive property.
Answer: a) 39.5%
Step-by-step explanation:
<em>For random selections, we assume that all the dogs have the same probability of being selected.</em>
In this case, the probability will be equal to the number of golden retrievers divided the total number of dogs.
We have 58 golden retrievers, and the total number of dogs is:
31 + 58 +20 + 38 = 147
Then the probability is:
P = 58/147 = 0.395
If we multiply it by 100%, we obtain the percentage form:
0.395*100% = 39.5%
So the correct option is a.
Answer:
x=4.16
Step-by-step explanation:
12x -18 +4 = 16+18
12x-16= 16+18
12x-16=34
+16 +16
12x=50
50/12
4.16