Answer:
The answer to your question is - 8
Step-by-step explanation:
Data
(3 - 4) 2 * 5 + (4 - 1) 2/3
The order of operations is
1st Parenthesis
2nd Roots and exponents
3rd Multiplication and division
4rd Addition and subtraction
Following these rules
Parenthesis (-1) 2* 5 + (3) 2/3
Multiplication and division - 10 + (6/3)
- 10 + 2
Addition and subtraction - 8
Answer:
4 √6
Step-by-step explanation:
We have a few right triangles. We know that a²+b²=c², with c being the side opposite the right angle. Representing the side without a value as z, we have:
m²+z² = (8+4)² = 12²
4²+n²=z²
8²+n²=m²
We have 3 equations with 3 unknown variables, so this should be solvable. One way to find a solution is to put everything in terms of m and go from there. First, we can take n out of the equations entirely, removing one variable. We can do this by solving for it in terms of z and plugging that into the third equation, removing a variable as well as an equation.
4²+n²=z²
subtract 4²=16 from both sides
z²-16 = n²
plug that into the third equation
64 + z² - 16 = m²
48 + z² = m²
subtract 48 from both sides to solve for z²
z² = m² - 48
plug that into the first equation
m² + m² - 48 = 144
2m² - 48 = 144
add 48 to both sides to isolate the m² and its coefficient
192 = 2m²
divide both sides by 2 to isolate the m²
96 = m²
square root both sides to solve for m
√96 = m
we know that 96 = 16 * 6, and 16 = 4², so
m = √96 = √(4²*6) = 4 √6
Answer:
360 - 230 = 130°
Step-by-step explanation:
