24. two negatives become a positive
Answer:
Change
Step-by-step explanation:
Here there are two variables a and b.
a is causing variable b.
In other words, a is an independent variable which can take any values, and b takes values depending on the value of a.
Examples are: b=ma+k or b =2a^2 etc.
Whenever we change a there is a change in b.
But it should be noted when there is a change in b, there is a change in a also.
However, normally a is changed first and b is derived from a.
Hence the statement
In order to show that variable a causes variable b, you need to change_____ variable
a.
2x + y = 8
x + 3y = -6
Note: This is the process of elimination
First: Multiply one side by -3 to get rid of your y's.
It should look like:
-3 ( 2x + y) = 8 (-3)
Then it should look like:
-6x - 3y = -24
x + 3y = -6
Go ahead: Get rid of the y's
Your equation should then look like:
-6x = -24
x = -6
Next: You would add x to -6x and subtract -6 from -24.
It should look like:
-5x = -30
Finally: You would get your x alone and divide both sides of your equal sign by -5.
Remember: Negative and a negative makes a positive.
Your answer should be:
x = 6
HOPE THIS HELPS! ^_^
A possible value could be 21.16
Answer: ∠C ≅ ∠E
Step-by-step explanation:
If Δ ABC is congruent to Δ DEF, then its corresponding parts must be congruent.
segment AB ≅ segment DE [first two letters]
segment BC ≅ segment EF [last two letters]
segment AC ≅ segment DF[first and last letters]
∠A ≅ ∠D [first letter]
∠B ≅ ∠E [mid letter]
∠C ≅ ∠F [last letter]
so from the given options, the only statement that is not true is ∠C ≅ ∠E.
