Answer:
Darnell reads 1,715 words in 7 minutes.
Step by step Explanation:
1. First, determine how many words he can read in a minute by dividing 735 words by 3. The result is 245.
245
______
3)735
6 drop the 3 to form 13
-_____
1 3
12 drop the 5 to make 15
-______
1 5
15
___________
0
2. Next, since he reads 735 words over 3 minutes, multiply that by 2 to find words read in 7 minutes: 3×2=6, thus, 735+735 (735×2) equals 1,470 words.
3. Finally, add 245 to account for the last minute we calculated. Therefore, the total is 1,715 words in 7 minutes.
<span>f(x)=x^2+6x+3
=(1/2.6)^2=3^2=9
f(x)=(x^2+6x+9)+3-9
=(x+3)^2-6</span>
