From 1st equation
d + e = 2
d = 2 - e
From 2nd equation, subtitute d with 2 - e
d - e = 4
2 - e - e = 4
2 - 2e = 4
-2e = 2
e = -1
Find d
d = 2 - e
d = 2 - (-1)
d = 3
The solution is (3,-1)
The multiplicative identity property states that any time you multiply a number by 1, the result, or product, is that original number. D is the correct answer.
Answer:
To calculate permutations, we use the equation nPr, where n is the total number of choices and r is the amount of items being selected. To solve this equation, use the equation nPr = n! / (n - r)!.
Answer:
A and C
Step-by-step explanation:
ABD forms a right angle
which is congruent to BCD
ABC forms right angle
which is congruent yo ADB
