So the first one is -0.5 and second is -0.5 the third one is -0.5 and the fourth is -0.25 so I would say that is D
Okay, so
a=2b+11
<span>a+b = 2(a-b) </span>
<span>now solve </span>
<span>a+b = 2a-2b </span>
<span>3b = a, put that into the 1st equation: </span>
<span>3b = 2b+11 </span>
<span>b=11 </span>
<span>a = 2(11) +11 = 33 </span>
<span>check in the 2nd equation: </span>
<span>33+11 = 2(33-11) </span>
<span>44 = 2(22) </span>
<span>44 = 44</span>
Answer:
15: A
16: C
Step-by-step explanation:
I have no idea but hopefully I helped you
Answer:
Square root of 16.
Step-by-step explanation:
Square root 16 = 4 which is rational.
All the rest have an irrational square root.
The arc’s length is:
6.28 ft
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