Answer:
The x-intercepts will be, x= 7 or x =9
Step-by-step explanation:
f(x)= x^2 -16x+63
At the x-intercept, f(x) is zero.
Therefore;
x² - 16x + 63 = 0
solving it quadratically;
product = 63
Sum = -16
x² - 9x - 7x + 63 = 0
x(x-9) - 7( x-9) = 0
(x-7) (x-9) = 0
x = 7 or x = 9
Therefore;
The x-intercepts will be, x= 7 or x =9
Answer:
Original price: $
55
Discount percentage:
46.75
%
Results
Discount:
$25.71
Final Price:
$29.29
Step-by-step explanation:
Answer: x4
Step-by-step explanation:
Answer:
3/4→15/20 and 2/5→8/20
Step-by-step explanation:
4*5=20, do what you do to denominator to numerator, so 3*5=15. 15/20. Same for 2/5.
