Answer:
x = - 7, x = 1
Step-by-step explanation:
Given
x² + 6x = 7
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(3)x + 9 = 7 + 9
(x + 3)² = 16 ( take the square root of both sides )
x + 3 = ± 
= ± 4 ( subtract 3 from both sides )
x = - 3 ± 4
x = - 3 - 4 = - 7
x = - 3 + 4 = 1
Solution set = { - 7, 1 }
Answer:
The answer to your question is: (∞ , 3]
Step-by-step explanation:
Remember that to express an inequality, are used ( ) and [ ].
( ) are used when the point is not consider in the interval.
[ ] are used when the point is consider or is part of the interval.
Also, an empty point indicates that the number is not consider in the interval.
and, a filled point indicates that the number is consider in the interval.
For your question, the interval will be:
(∞ , 3]
Answer:
15 pound in a bag
Step-by-step explanation:
one can= 8 oz
one bag= 30 times the amount in a can
8 oz x 30 = 240 oz in a bag
Question asked how many pound is in one bag of dog food:
We know that 16 oz = 1 pound
240 oz = x pound
To find x pound we divide 240 oz by 16 oz-->
240 oz/ 16 oz = 15 pound
Y=mx+b helps to find slope of a line.
B is where it starts on the y axis.
m is the slope.
The discount sales price would be $218
