Answer:
Sometimes they are called algebraic postulates.
Step-by-step explanation:
Please mark brainliest and have a great day!
I believe the correct answer from the choices listed above is the third option. All of the following proportions are equivalent except <span>a/d=c/b.
</span><span>a/b=c/d
b/a=d/c => a/b = c/d
a/d=c/b not equal to </span>a/b = c/d<span>
a/c=b/d => </span>a/b = c/d
Answer:
a = - 4, b = 5
Step-by-step explanation:
Expand the left side and compare the coefficients of like terms on the right side.
- 3(2x² + ax + b)
= - 6x² - 3ax - 3b
Comparing like terms with - 6x² + 12x - 15
x - term → - 3a = 12 ( divide both sides by - 3 )
a = - 4
constant term → - 3b = - 15 ( divide both sides by - 3 )
b = 5
Answer: (-2, 8)
Explanation:
Plug x = -2 into the second equation. Isolate y.
5x+3y = 14
5(-2)+3y = 14
-10+3y = 14
3y = 14+10
3y = 24
y = 24/3
y = 8
We have x = -2 lead to y = 8.
Therefore, the ordered pair (x,y) = (-2,8) is the solution to this system.
