The answer is -16 - 10i.
Using the distributive property on the first part, we have:
-2i*7--2i*4i + (3+i)(-2+2i)
-14i+8i² +(3+i)(-2+2i)
Using FOIL on the last part,
-14i+8i²+(3*-2+3*2i+i*-2+i*2i)
-14i+8i²-6+6i-2i+2i²
-10i+8i²-6+2i²
Since we know that i = -1,
-10i+8(-1)-6+2(-1)
-10i-8-6-2
-16-10i
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➷ The range is B. Greater for data set 2
The mean is B. Greater for data set 2
2) The range is C. Greater for the 14 to 19 year olds
The median is C. Greater for the 14 to 19 year olds
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Answer:
4:10, 2:5 16:40
Step-by-step explanation:
just multiply or divide
-5 is bigger than -9 because they are negative numbers so they go opposite ways on the number line so the concept of normal number backwards. hope this helps