Answer:
3
Step-by-step explanation:
Answer:
The numbers are 87 and 106
Step-by-step explanation:
x + y = 193
x - y = 19
Add y to both sides of the equation
x = 19 + y
Substitute new value for x into first equation
19 + y + y = 193
Add y's together
19 + 2y = 193
Subtract 19 from both sides of the equation
2y = 174
Divide both sides of the equation by 2
y = 87
193 - 87 = 106
The numbers are 87 and 106
Hope this helps :)
The rule used to create the arithmetic sequence -2, -4, -6, -8,.. is an = -2 - 2(n-1)
The arithmetic sequence is
-2, -4, -6, -8,...
The initial term = -2
The common difference = The second term - The first term
= -4 - (-2)
= -4 + 2
= -2
The nth term of the arithmetic sequence is
an = a+ (n-1) d
Where a is the initial term
an is the nth term
d is the common difference
Substitute the values in the equation
an = -2 + (n-1)(-2)
Rearrange the terms
an = -2 -2(n-1)
Hence, the rule used to create the arithmetic sequence -2, -4, -6, -8,.. is an = -2 - 2(n-1)
Learn more about arithmetic sequence here
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Answer:
Step-by-step explanation:
SSS postulate of congruency
F ∪ H is defined as the set that consists of all elements belonging to either set F or set H (or both).
F ∩ H is defined as the set composed of all elements that belong to both F and H