Answer:
the answer would be 3.4 + 4 = 7.4 .
The process is similar to (and easier* than) adding three 4-digit numbers. Add the numbers in each column.
The sum is ...
(2+1-3)x³ +(-4+6+2)x² +(6-8-4)x +(-3+12-7)
= 0x³ +4x² -6x +2
The sum is 4x² -6x +2
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* The process is easier because there are no "carry" operations from one column to another as there may be when adding multi-digit numbers.
Answer:
C. sin(90° - θ)
Step-by-step explanation:
A trig function of an angle equals the cofunction of the angle's complement.
The cofunction of cosine is sine, and the complement of θ is 90° - θ.
∴ cosθ = sin(90° - θ)
Angle AGD is a right angle which equals 90 degrees.
Angle FGD would be 90-73 = 17 degrees.
Angle X is a vertical angle to FGD, which means they are the same.
Angle X = 17 degrees.
