Answer:
Step-by-step explanation:
given
y = 19 - 2x
when x = 3 , y = 13
when x = 4 , y = 11
when x = 5 , y = 9
when x = 6 , y = 7
hope it helps :)
Answer:
I think the answer is H
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First, look and compare at the decimal places in brackets ( ) .
A. (0).561 , (8).627 , (5).325 (wrong)
B. 4.(0)57, 4.(1)22, (5).008 (4.0.., 4.1.., 5.00..) least to greatest - (correct)
C. 1.(7)42 , 1.(5)58, 1.(6)71 - (wrong)
D. Greatest to least - (wrong)
Answer: Second option, third option and fifth option.
Step-by-step explanation:
In order to solve this exercise it is important to remember the multiplication of signs:
![(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-](https://tex.z-dn.net/?f=%28%2B%29%28%2B%29%3D%2B%5C%5C%28-%29%28-%29%3D%2B%5C%5C%28-%29%28%2B%29%3D-%5C%5C%28%2B%29%28-%29%3D-)
Knowing that, you can distribute the sign and add the like terms. Repeat this procedure in each expression given in the exercise.
Therefore, you get:
![a.\ (3.4a - 1.7b) + (2.5a - 3.9b)=3.4a - 1.7b + 2.5a - 3.9b=5.9a-5.6b\\\\b.\ (2.5a + 1.6b) + (3.4a + 4b)=2.5a + 1.6b + 3.4a + 4b=5.9a+5.6b\\\\c.\ (-3.9b + a) + (-1.7b + 4.9a)=-3.9b + a -1.7b + 4.9a=5.9a-5.6b\\\\d.\ -0.4b +(6b - 5.9a)=-0.4b +6b - 5.9a=6b-6.3a\\\\e.\ 5.9a - 5.6b](https://tex.z-dn.net/?f=a.%5C%20%283.4a%20-%201.7b%29%20%2B%20%282.5a%20-%203.9b%29%3D3.4a%20-%201.7b%20%2B%202.5a%20-%203.9b%3D5.9a-5.6b%5C%5C%5C%5Cb.%5C%20%282.5a%20%2B%201.6b%29%20%2B%20%283.4a%20%2B%204b%29%3D2.5a%20%2B%201.6b%20%2B%203.4a%20%2B%204b%3D5.9a%2B5.6b%5C%5C%5C%5Cc.%5C%20%28-3.9b%20%2B%20a%29%20%2B%20%28-1.7b%20%2B%204.9a%29%3D-3.9b%20%2B%20a%20-1.7b%20%2B%204.9a%3D5.9a-5.6b%5C%5C%5C%5Cd.%5C%20-0.4b%20%2B%286b%20-%205.9a%29%3D-0.4b%20%2B6b%20-%205.9a%3D6b-6.3a%5C%5C%5C%5Ce.%5C%205.9a%20-%205.6b)
You can identify that the expressions
,
and
are equivalent after simplifying.
The answer would be reflection over the y-axis because, the x changes while the y stays the same