Answer:
Step-by-step explanation:
The lines will be parallel if corresponding angles are congruent (z=x) or if adjacent interior angles are supplementary (x+y=180°).
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The other relations can be true without forcing the lines to be parallel.
Answer:
1. 19
2. 7
3. 9
4. 8
5. 9
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Answer:
13/20
Step-by-step explanation:
The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.
Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
(2/5×4/4)+(1/4×5/5)=?
Complete the multiplication and the equation becomes
8/20+5/20=?
The two fractions now have like denominators so you can add the numerators.
Then:
8+5/20=13/20
13/20 cannot be reduced, therefore 2/5 + 1/4 = 13/20
Given that
and
, if
is an arithmetic sequence, then the common difference between successive terms is
.
You then have
So the explicit formula for the
th term is