Answer:
-5 ÷ 4 = -1.25 or 1 ![\frac{1}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D)
The answer is -1.25
I hope that this helps you! ^‿^
Answer:
![\huge\boxed{x=-5,\ y=4\to(-5,\ 4)}](https://tex.z-dn.net/?f=%5Chuge%5Cboxed%7Bx%3D-5%2C%5C%20y%3D4%5Cto%28-5%2C%5C%204%29%7D)
Step-by-step explanation:
![\left\{\begin{array}{ccc}2x+3y=2\\5x-y=-29&\text{multiply both sides by 3}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}2x+3y=2\\15x-3y=-87\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad17x=-85\qquad\text{divide both sides by 17}\\.\qquad\dfrac{17x}{17}=\dfrac{-85}{17}\\.\qquad\boxed{x=-5}\\\\\text{Substitute it to the second equation:}\\\\5(-5)-y=-29\\\\-25-y=-29\qquad\text{add 25 to both sides}\\\\-25+25-y=-29+25\\\\-y=-4\qquad\text{change the signs}\\\\\boxed{y=4}](https://tex.z-dn.net/?f=%5Cleft%5C%7B%5Cbegin%7Barray%7D%7Bccc%7D2x%2B3y%3D2%5C%5C5x-y%3D-29%26%5Ctext%7Bmultiply%20both%20sides%20by%203%7D%5Cend%7Barray%7D%5Cright%5C%5C%5C%5C%5Cunderline%7B%2B%5Cleft%5C%7B%5Cbegin%7Barray%7D%7Bccc%7D2x%2B3y%3D2%5C%5C15x-3y%3D-87%5Cend%7Barray%7D%5Cright%7D%5Cqquad%5Ctext%7Badd%20both%20sides%20of%20the%20equations%7D%5C%5C.%5Cqquad17x%3D-85%5Cqquad%5Ctext%7Bdivide%20both%20sides%20by%2017%7D%5C%5C.%5Cqquad%5Cdfrac%7B17x%7D%7B17%7D%3D%5Cdfrac%7B-85%7D%7B17%7D%5C%5C.%5Cqquad%5Cboxed%7Bx%3D-5%7D%5C%5C%5C%5C%5Ctext%7BSubstitute%20it%20to%20the%20second%20equation%3A%7D%5C%5C%5C%5C5%28-5%29-y%3D-29%5C%5C%5C%5C-25-y%3D-29%5Cqquad%5Ctext%7Badd%2025%20to%20both%20sides%7D%5C%5C%5C%5C-25%2B25-y%3D-29%2B25%5C%5C%5C%5C-y%3D-4%5Cqquad%5Ctext%7Bchange%20the%20signs%7D%5C%5C%5C%5C%5Cboxed%7By%3D4%7D)
Answer:
/\
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Complementary angles are when two angles add up to 90 degrees.
If a polygon has 5 sides, then it is a regular pentagon
False: regular pentagon = equiangular. There are pentagons that have 5 sides that are not equiangular