Answer
132 degrees
Step-by-step explanation:
Strategy: Find angle DEB and using that fact that DEB + DEF is 180 degrees to find angle DEF
The sum of the four angles of any quadrilateral is 360 degrees.
Since three angles are given, we can use that to find the fourth.
360-(147+93+72)=size of angle DEB. Solving, you get angle DEB is 48.
Also, knowing that segment BF is a straight line, it means that angle DEB + angle DEF is equal to a straight angle (180 degrees).
DEB+DEF=180
48+DEF=180
DEF=180-48=132 degrees.
Thus, angle DEF is equal to 132 degrees.
Answer:
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Step-by-step explanation:
Answer:
a=5
Step-by-step explanation:
1. Multiply 4 and 6a by 4.
You'll get 24a + 16.
2. Subtract 16 from 136.
You'll get 120.
3. Divide 120 by 24 to get <em>a</em> by itself.
=a
a=5
Do distributed property
7/3+3(2/3-1/3)^2
7/3+3×(2/3-1/3)^2
7/3+3×(1/3)^2
7/3×3×1/9
7/3×1/3
7+1/3
8/3 or 2 and 2/3 or 2.66667
Answer:
4/9*2/3= 8/27 i dont think you can simplify.
Step-by-step explanation:
