Answer:
a=55
Step-by-step explanation:
This question is asking for you to find the whole (a), given a part (11). This can be done through multiplication. 20% is 1/5 of 100%. This means to find the whole number, you should multiply the part by 5. 11*5=55. So, a must equal 55.
We can check this answer by working backward. Do this by finding 20% of 55, and checking to see if it is 11. To find a percentage of a number, multiply that number by the percent in decimal form. So, 20% of 55 is equal to 0.2*55, which is 11. Therefore, the answer is correct.
3√(-50) = 3√(-1*50)=3i√(25*2) = 3*5i√2=15i√2
Answer: its option "b"
Pentagon;not regular
Step-by-step explanation:
The polygon has 5 sides but all the sides are not equal
hence, it is an irregular pentagon
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The least common denominator is 2
Answer:
Step-by-step explanation:
{2 + 2w = l
{94 = 2w + 2l
94 = 2w + 2[2 + 2w]
94 = 2w + 4 + 4w
94 = 4 + 6w
- 4 - 4
_________
[Plug this back into both equations above to get the length of 32 feet]; 
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