A = -11
B= -12
This is because of how calculations work in negatives. Because they are both negative they work similarly to addition
Answer:
a/1/$400
Step-by-step explanation:
240 divided by 12=20
20x10x2=$400
123 - Use PEMDAS but since you have both division and multiplication you can just go from left to right
Answer:
The length of b is
.
Step by step explanation:
Given information: In ΔABC, ∠A =∠C, ∠B = ß (where ß is an acute angle), and BC = x.
Since two angles are same therefore triangle ABC is an isosceles triangle and side AB and BC are congruent.

According to Law of cosine





Therefore the length of b is
.
The answer is 17 because a right angle is 90 and you subtract 73 from it and get 17