Answer:
Step-by-step explanation:
Since a,b,c and d are integers,
bd, ad and cb are also integers because product of two integers is an integer
Also, ad + cb is an integer because sum of two integers is an integer.
(ad + cb)/bd is a rational number
a/b + c/d is a rational number
Answer: (0,0)
Step-by-step explanation:
Answer:
It will take 8 hours for the 5 workers to complete the same job.
Step-by-step explanation:
The amount of work done is the same for both crews.
Work = time * workers
Work = 10 * 4
Work = time * 5
Set the two equal
10 * 4 = time * 5
Divide each side of the equation by 5
10*4/5 = time *5/5
8 = time
Answer:
In picture
Step-by-step explanation:
Brainliest please~
Answer:
A -- only
Step-by-step explanation:
A segment bisector intersects a segment at its midpoint.
S is the midpoint of segment PQ, so ST is a segment bisector. (It intersects PQ at its midpoint, S.)
No other midpoints are shown in this drawing.
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A perpendicular bisector is perpendicular to the segment it bisects. None are shown in this drawing.
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An angle bisector divides an angle into two congruent parts. None are shown in this drawing.
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The vertex of a right angle is often marked with a small square. Only point P is the vertex of a right angle in this drawing. (We cannot assume OPQR is a square.)
