Use FOIL to distribute and multiply
First:
8*4y = 32y
Outer:
8*3 = 24
Inner:
9*4y = 36y
Last:
9*3 = 27
Combine Like Terms:
32y+24+36y+27
68y+51 is the answer
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Answer:
Amplitude = 2
Step-by-step explanation:
The amplitude of this sine wave is 2 denoted by the coefficient -2 in front of the sin(x). The negative of the coefficient denotes that the sine wave is the opposite of the standard sine wave.
Cheers.
X+4multiply by y=7
Moved these terms to left-7
It becomes X+4 multiple y-7=0
X+4 multiple y-7=0