Hello. D= 2×r D=2×2,8 D=5,6cm. Circumference=

× D ;
C= 3,14×5,6 C=17,584cm. I hope to have helped you.
Answer:
the line of symmetry is (-1,0) and the vertex is (0,4)
Step-by-step explanation:
I like to plug in all of my coordinates into a graphing calculator in order to find the answer.
Hope this helps...
Answer:
16.) c. 2x²+7x-15
17.) c. 
18.) D
Step-by-step explanation:
have a wonderful day! :D
I have a feeling, these were the answer choices you were trying to make: <span>A ∪ B = {7}
B ⊆ B
B ⊂ A Also, the second answer is the only one that's true
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