(b+8)(b+2) please show work. I got b^2 + 10b + ?
1 answer:
Step 1. Apply FOIL method. bb+b*2+8b+8*2
Step 2. bb+2b+8b+8*2
Step 3. Add similar elements. bb+10b+8*2
Step 4. Apply exponent rule. b^2+10b+8*2
Step 5. Multiply the numbers. b^2+10b+16
b^2+10b+16 is your answer.
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A.
B.
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<u>Mean:</u>
- Homework = (4 + 6*2+10*3+12*2+14*4+16*2+18)/15 = 11.73
- Television = (0 + 10*3+12*1+16*3+18*4+20*3)/15 = 14.8
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