Answer:
The student got 90% correct and 10% incorrect.
Step-by-step explanation:
Answer:
can it be a fraction
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
Given
P(x) = x³ + 7x² + 4x, then
P(a) = a³ + 7a² + 4a ← substitute x = a into polynomial
To evaluate P(- 2) substitute a = - 2 into P(a)
P(- 2) = (- 2)³ + 7(- 2)² + 4(- 2) = - 8 + 28 - 8 = 12
Since P(- 2) ≠ 0 then (x + 2) is not a factor of P(x)
Answer:
282
Step-by-step explanation:
Whole circle has 360°.
So BDC = 360 - 78 = 282°
