Answer:
Step-by-step explanation:
1) If you really meant X^2+12=40, then this simplifies to x^2 = 28, and therefore x = ±√28, or x = ±2√7.
2) If you meant X^2+12x=40:
a) Take half of the coefficient of x: that would be (1/2)(12), or 6.
b) Square this result, obtaining: 6² = 36
c) Add this 36 to x^2 + 12x + 40, and then subtract it: We get:
x² + 12x + 36 - 36 = 40, or x² + 12x + 36 = 76
We have to add 36, as indicated above, to "complete the square."
So he makes 10.40 per hr for regular work, and time and a half for anything over 40 hrs.......and he worked 51.5 hrs
10.40 (40) = 416 for his regular hrs
51.5 - 40 = 11.5 hrs overtime......1.5(10.40) * 11.5 = 15.60(11.5) =
179.40 for his overtime hrs
for a total gross pay of : 416 + 179.40 = 595.40 <==
because he worked 40 hrs at 10.40 per hr...giving him $ 416...and he worked 11.5 hrs overtime at a rate of 15.60 per hr...giving him 179.40...for a total of $ 595.40 total gross pay
Simplified would be 4xy + 3x^2 + 6x
No, Aileen's mom is incorrect. Aileen can read 30 pages in the same time period as her friend reads 20 pages.
To get this answer, you multiply 20 by 1.5
20 x 1.5 = 30
