- Shapley found the center of the Galaxy is in the direction of the constellation-?

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Calculus problem need help!!? Z=7x+4y.
4x+5y is less than or equal to 65
3x+y is less than or equal to 24
x is greater than or equal to 0
y is greater than or equal to 0? X^2-22x+121=0? Verify experimentally that each angle of an equilateral triangle is 60°? The derivative of e^x is e^x, so what if x was replaced with a different letter, like e^t? Is the derivative still the same?