Answer:
The expression is ⇒ x^4 - 45x² + 40x + 84
Step-by-step explanation:
From the graph:
∵ The zeroes of the functions are -7 , -1 , 2 , 6
∴ The factors of functions are (x + 7) , (x + 1) , (x - 2) , (x - 6)
∵ (x + 7)(x + 1) = x² + x + 7x + 7 = x² + 8x + 7
∵ (x - 2)(x - 6) = x² - 6x - 2x + 12 = x² - 8x + 12
∵ (x² + 8x + 7)(x² - 8x + 12) =
x^4 - 8x³ + 12x² + 8x³ - 64x² + 96x + 7x² - 56x + 84 =
x^4 - 45x² + 40x + 84
∴ f(x) = x^4 - 45x² + 40x + 84
hope this helps you a lot
have a great day
6xy
4/10
when converting fractions, you multiply the numerator and the denominator by the same number. In this case, multiply it by 2, giving you 4/10.
100 ft²
1 cm : 2 ft
1 cm² : 4ft²
25 cm² : X ft²
1/4 = 25/X
X = 25×4 = 100 ft²
m /_ 1 is the same as m /_ 4 because they are vertical angels which equals to 35 degrees.
aince g and i are parallel :
m /_ 4 must equal m/_ 12 because they are exterior angels.
So the answer is 35 degrees
