Given the equations begin mathsize 18px style f left parenthesis x right parenthesis equals x squared plus 4 x plus 3 end style and begin mathsize 18px style g left parenthesis x right parenthesis equals 2 x minus 1 end style, find begin mathsize 18px style f left parenthesis x right parenthesis plus g left parenthesis x right parenthesis end style.

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

50-60=10

step-by-step explanation: