Use triangles to find the sum of the interior angle measures of the polygon. What's the answer?
2 answers:
Answer: 180*5=900
Step-by-step explanation:
1) Start from the middle triangle and draw 2 lines connecting the edges to the bottom 2 angles. This should result in the crown splitting into 3 sections.
2) Go to the triangles on each side and connect them to the middle triangle. It should result in the crown having 5 triangles.
3) Multiply the 5 triangles by 180 (the angle sum of a triangle) to get 900.
Crown after all the lines are drawn:
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Answer:
A, B and C
Step-by-step explanation:
In the equation: 3y=27x
Making y the subject of the equation, we have:
The constant of proportionality between y and x is 9.
We want to determine which relationships have the same constant of proportionality 9.
<u>Option A</u>
y=9x
The constant of proportionality is 9.
<u>Option B</u>
2y=18x
Divide both sides by 2 to obtain: y=9x
The constant of proportionality is 9.
<u>Option C</u>
x=3, y=1/3
Substitution into y=kx gives:
1/3=3k
k=9
The constant of proportionality is 9.
<u>Option D</u>
x=6, y=2/3
Substitution into y=kx gives:
2/3=6k
k=2/3*6=4
The constant of proportionality is 4.
<u>Option E</u>
When x=2, y=18
Substitution into y=kx gives:
18=2k
k=9
However, when x=4, y=27
Substitution into y=kx gives:
27=4k
k=6.75
This is not a proportional relation since the constant of proportionality is not equal.
The correct options are A, B and C
Answer:
C.
Step-by-step explanation:
= Diameter of a red blood cell =
= Diameter of a whooping cough virus =
Ratio of the diameter of the red blood cell to the diameter of the whooping cough virus
The required ratio is .