Answer:
19/18
Step-by-step explanation:
simplify x/3
simplify 5/6
simplify 7/9
Answer:
Becky, because her justification for the second statement should be "definition of supplementary angles" rather than "angle addition postulate."
Step-by-step explanation:
Becky completed the proof incorrectly because her justification for the second statement is not totally correct.
Angle addition postulate does not really apply here, as the sum of 2 angles may not give you exactly 180°.
However, the second statement, m<AKG + m<GKB = 180° and m<GKB + m<HKB = 180°, can be justified by the "Definition of Supplementary Angles".
The sum of supplementary angles = 180°.
Therefore, Becky completed the proof incorrectly.
29.75/8.5=x/4.5
using the "butterfly method"
8.5x=133.875
/8.5 /8.5
x=15.75
You have to make a proportion
<u>Answer:</u>
<u>Step-by-step explanation:</u>
<u>We know that:</u>
<u>Surface area is the area of the faces of the cuboid.</u>
<u>Work:</u>
- => 2(7 x 4) + 2(5 x 4) + 2(5 x 7)
- => 2(28) + 2(20) + 2(35)
- => 56 + 40 + 70
- => 166 units²
Hence, <u>Option C is correct.</u>
Hoped this helped.
