In the U. S during the 1990s, live births to unmarried mothers, B, grew according to the exponential model B=1.165×10^t(1.013)^t, where t is the number of years after 1990. What does the model give as the number of live births to unwed mothers in 1990?

1165

Step-by-step explanation:

Here we have an exponential function, and it is one of the most important functions in the mathematics. In this case, the independet variable is the exponent.

Here, this function represents growth because , which means that live births to unmarried mothers grew.

In the because t represents the number of years after 1990, so, then we get:

In this case, the model gives us information about the number of live births to unmarried mothers in 1990.  

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

answer: plz put a pic in so i can answer it

step-by-step explanation: