Caleb bought 3 1/2 lbs of chocolate covered pretzels and 4/5 lbs of raisins. How many pounds of snacks . did he buy altogether?

4.3 lbs

Step-by-step explanation:

3 1/2 + 4/5 = 3 5/10 + 8/10 = 3 13/10 = 4 3/10 lbs

or

3.5 + 0.8 = 4.3 lbs

-232

step-by-step explanation:

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