For a decreasing function, how will the right hand sum compare with the exact area under the curve, over a given interval? The right hand sum will be .
A-an underestimate
B-an overestimate
C-exactly right
D-there is not enough information given to determine

A-an underestimate

Step-by-step explanation:

If you look at the image below, the right-hand-sum sits way below the curve for a decreasing function.

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct