The first one is A. Number 2 is d. Number 3 is b because 20x20=400 and 21x21=441 and when you add them together you get 841 or 29x29. Number 4 is b because complementary angles are also right angles, they have to add up to 90 degrees. Number 5 is a because every angle is less than 90 degree. Number 6 is 30 because 60+90+x = 180 and when you solve for x you will get 30 degrees.
Answer:
8x^4 - 41x^3 - 9x^2 - 33x + 27
Step-by-step explanation:
The screenshot given below will hopefully help you :)
Answer: The proportion of oil tankers that had spills is
or 0.329.
Step-by-step explanation:
Since we have given that
Number of tankers is drawn = 474
Number of tankers did not have spills = 318
Number of tankers have spills = 474 - 318 = 156
Proportion of oil tankers that had spills is given by

Hence, the proportion of oil tankers that had spills is
or 0.329.
Your answer is D. Hope this helps!
Hey there!
Assuming you meant

If so, follow these steps so it can be a little bit easier to solve
Firstly, we have to
by
on each of your sides


We get: 
Now, we have
by
on each of your sides


We get: 
± 
Therefore , your answer is:
±
Good luck on your assignment and enjoy your day!
~