Total = 6x^2 and 2x
so
6x^2 + 2x = 2x (3x +1)
answer
A. 2x (3x +1)
Answer:
Matrix 1: -4269
Matrix 2: 1768
Matrix 3: 647.3561
Step-by-step explanation:
Matrix 1: ![(7*19)-(31*142)=-4269](https://tex.z-dn.net/?f=%287%2A19%29-%2831%2A142%29%3D-4269)
Matrix 2: 1768
![\left[\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Da%26b%26c%5C%5Cd%26e%26f%5C%5Cg%26h%26i%5Cend%7Barray%7D%5Cright%5D)
Determinant = ![a(ei-fh)-b(di-fg)+c(dh-eg)](https://tex.z-dn.net/?f=a%28ei-fh%29-b%28di-fg%29%2Bc%28dh-eg%29)
Matrix 3: 647.3561
![\left[\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Da%26b%26c%5C%5Cd%26e%26f%5C%5Cg%26h%26i%5Cend%7Barray%7D%5Cright%5D)
Determinant = ![a(ei-fh)-b(di-fg)+c(dh-eg)](https://tex.z-dn.net/?f=a%28ei-fh%29-b%28di-fg%29%2Bc%28dh-eg%29)
Answer:
3780 bolts will be made by 8pm
Step-by-step explanation:
One Hour : 500 nuts or 840 bolts
Divide by 2
30 minutes : 250 nuts or 420 bolts
750 nuts : 500 + 250 = 750
so the machine took 1 hour and 30minutes
14:00 it started (2pm)
15:30 it switched to bolts
20:00 (8pm)
4 hours and 30minutes to get to 8pm
<u>840 × 4 = 3360 bolts + 420 bolts = 3780 bolts was made</u>
Answer: I believe the answer to this question is: X= 1/5.