The area between z= -1.3 and z = 0.7 under the normal standard curve is ​

its a straight line parallel to the time axis

m∠a is 90°

m∠b is 40°

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)

eight hundred an fifty one point four hundred and fifteen

800+50+1+.4+.01+.005