The value of the polynomial 7x4 + 3x2 -4, when x = -2 is:
a)110
b)120
c)100
d)130
Answers
Answered by
5
Answer:
120 is the answer
Step-by-step explanation:
7 (-2)⁴ +3(-2)² -4
= 7*16 + 3(4) -4
112 +12-4
120
Answered by
1
Answer:
(b) 130
The sum of all the exterior angles of a triangle is 360°.
Given:
x + 110° + 120° = 360°
or, x = 360° - 230°
or, x = 130°
Step-by-step explanation:
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