A: what are the solutions to the quadratic equation 9x2+64=0?

b: what is the factored form of the quadratic expression 9x2+64?

select one answer for question a, and select one answer for question b.

b: (3x+8i)(x−8i)
b: (x−8)(3x−8)
b: (3x−8)(3x+8)
b: (3x−8i)(3x+8i)
a: x=83 or x=−83
a: x=−83i
a: x=83i or x=−83i
a: x=83

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.

step-by-step explanation: