Who was Andrew Carnegie & what kind of company did he have?

Carnegie Steel Company

Andrew Carnegie: Steel Magnate

Explanation:

In 1892, his primary holdings were consolidated to form Carnegie Steel Company. The steel magnate considered himself a champion of the working man; however, his reputation was marred by the violent Homestead Strike in 1892 at his Homestead, Pennsylvania, steel mill.

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°