Answer:
Since we have two congruent sides with one congruent angle in between the answer is SAS.
The simplified expression of 
is 
.
Solution:
Given expression is 
.
To simplify the given expression.
Using exponent rule: 
Using another exponent rule: 
Using exponent rule:
Hence the simplified expression of is .
Add 31 to both sides which will give you
9h = 130
Cost = fix cost + hourly cost - discount
Cost = 4* [5 + 4x - 4x(20/100)] = 4*[5 + 4x - 0.8x] = 4*[5 + 3.2x] = 20 + 12.8x
Answer: option B) 12.8x + 20
Answer:
b = √(c^2 - a²)
Step-by-step explanation:
Start with the given c = √a^2 + b^2. Squaring both sides, we get:
c² = a² + b².
We want to iosolate b² and then b.
So: subtract a² from both sides, resulting in:
c² - a² = b²
Taking the square root of both sides, we get:
√b² = √(c² - a²)
and so:
b = √(c^2 - a²)
