Answer:
<h2>7x² + 9x + 90</h2>
Step-by-step explanation:
(7x + 9)x + 90 <em>use the distributive property </em><em>a(b + c) = ab + ac</em>
= (7x)(x) + (9)(x) + 90
=7x² + 9x + 90
Population size:7
<span>Lower quartile (xL): 34
Median (xm): 49
Upper quartile (xU): 75</span>
If you plug in the respective numbers (x,y) you'll get the answer choice C. 19=4(4)+3 : 19=19
Step-by-step explanation:
Part A, Option 1 is a exponential function while option is a linear equation.
Part B, Let y=b*a^(x) be the function for option 1. At x=1, y=1100 and at x=2, y=1210. 1100=b*a and 1210=b*a^2. Dividing them both we get, b=1.1 and a=1000. y=1000*(1.1)^(x). For option 2, it's a linear equation with a function y(x)=1000+100x.
The 20 year difference would be immense. With option 1, Belinda will get $6727.5 whereas with option 2, they will end up with $3000
