Answer:
Step-by-step explanation:
Use formula
Hence,
This expression is equal to
so we can equate the coefficients at powers of x:
Answer:
He will need 5 bags of fertilizer
Step-by-step explanation:
The area of the field would be 15 x 13 which is 195 square feet . If one bag of fertilizer covers 39 square feet then by dividing 195 by 39 you can come up with the answer; 5 bags
Answer:
5 cm
Step-by-step explanation:
the perimeter of a square with sides of 9 cm is 36 cm so the rectangle must have the same perimeter
if the length of the rectangle is 13cm, its opposite side is also 13cm
add 13 + 13 to get 26
let 'n' = width of rectangle
perimeter = 26 + n + n
36 = 26 + 2n
2n = 10
n = 5
This gives you three simultaneous equations:
6 = a + c
7 = 4a + c
1 = c
<u>c = 1
</u><u /><u />
If c =1,
6 = a + 1
<u>a = 5
</u><u /><u />
This doesn't work in the second equation, so the quadratic that goes through these points is not in the form y = ax^2 + bx + c
Was there supposed to be a b in the equation?
