Answer:
42, 138, 138
Step-by-step explanation:
the line not adjacent to the 42 degree angle is also 42 by the vertical angles theorem. Then you find the measure of the other 2 by x+42=180 so x=138.
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Cramer's rule is an explicit formula for the solution of a system of linear equations. That has many equations as unknowns and valid whenever the system has a unique solution.
Answer:
a is arithmetic sequence.
Step-by-step explanation:
option a is an arithmetic sequence because we use d=t2-t1 formula
so like wise,
8-2=6
14-8=6
20-14=6
You must first find a common denominator.
Change the fractions to the common denominator.
Then you add or subtract the fractions.
Finally, you may need to reduce the fraction.
Example 1:
Add
1/5 + 1/3
The least common denominator is 15.
Both denominators must become 15.
1/5 + 1/3 = 3/3 * 1/5 + 5/5 * 1/3 = 3/15 + 5/15 = 8/15
Example 2:
Subtract
3/8 - 1/3
The least common denominator is 24.
3/3 * 3/8 - 8/8 * 1/3 = 9/24 - 8/24 = 1/24
Both in addition and subtraction, you only add or subtract the numerators. The denominator of the answer is the common denominator.