7 times the sum of a number and 4 is the same as 8 decreased by 3 times a number
1 answer:
Answer:
7x+4= 8-3x
Step-by-step explanation:
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f(-1) = 1/5 , f(2)=25 , f(3)=125
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![~~~~~~\cos \theta = \dfrac{\text{Base}}{\text{Hypotenuse}}\\\\\\\implies \cos \theta = \dfrac{9}{12}\\\\\\\implies \theta = \cos^{-1} \left( \dfrac 9{12} \right)\\\\\\\implies \theta \approx 41^{\circ}](https://tex.z-dn.net/?f=~~~~~~%5Ccos%20%20%5Ctheta%20%3D%20%5Cdfrac%7B%5Ctext%7BBase%7D%7D%7B%5Ctext%7BHypotenuse%7D%7D%5C%5C%5C%5C%5C%5C%5Cimplies%20%5Ccos%20%5Ctheta%20%3D%20%5Cdfrac%7B9%7D%7B12%7D%5C%5C%5C%5C%5C%5C%5Cimplies%20%5Ctheta%20%3D%20%5Ccos%5E%7B-1%7D%20%5Cleft%28%20%5Cdfrac%209%7B12%7D%20%5Cright%29%5C%5C%5C%5C%5C%5C%5Cimplies%20%5Ctheta%20%5Capprox%2041%5E%7B%5Ccirc%7D)