Answer:
C; None of the above.
Step-by-step explanation:
Pretend x=1, y=0, and z=2.
You have to match an answer to 1+0-2 (equals to -1).
The first equation would be 2+0+1. When you add them all together you get 3, and that isn't equivalent to -1, so therefore this one is not the answer.
The second equation becomes 1+2+0, and when you solve for the answer, you see that the answer is also 3, and so we can conclude that neither A or B matches with the equation above, so the answer is C, None of the above.
<u>Option D
</u>
<u>Answers: </u>
In the given identities a + 0 = 0 + a will represent the additive identity.
<u>Solution: </u>
The additive identity says that if you add a real number to zero or add zero to a real number, then you get the same real number back. This can be written as,
A + 0 = A
The number zero is known as identity element or the additive identity.
Let us understand the additive property using a example:
Let us consider the case 0 + 40 = 40, here 0 represents the identity value.
When we add zero to real number 40, we get the result as 40 which is the same number.
Hence, on the given options, the value a + 0 = a will represent the additive identity.
Answer:
y = 
Step-by-step explanation:
Each point is (x,y). So to find the equation, substitute both points into the given choices.
To test the first choice: y = 
substitute -8 into x and -6 into y
-6 = 
-6(3) = (-4)(-8)
-18 ≠ 32
Since the numbers are not equal this is not the correct equation. Move on to testing the next equation in the same manner.
The third equation y = 
satisfies both points
Test for point (-8,-6)
-6 = 
-6(4) = (3)(-8)
-24 = -24
Test for point (12,9)
9 = 
9(4) = (3)(12)
36 = 36
Answer:
Kiara math fact completion rate is 5
Step-by-step explanation:
The data is as follows
Giovanni
Seconds
Math Facts
from this data we can conclude
Giovanni solves = 20/4 = 5math facts per second
Kiara = 5t , where t represents time in seconds
for 1 second Kiara rate will be = 5*1 math fact per second
= 5 math facts per second
