3-1.
hom is conducting a survey for the school newspaper. He
ved 175 students at his school and found that 28 students
d the new iPhone, 44 students had a #Pad computer, and 110
udents had neither. Pham then made a Venn diagram to
illustrate the information.
*Phone
21
)
TtPad
37
Neither 110
a.
How did Pham determine the number of students who
have both Phones and iPads?
How many students have Phones or Pads? How did he find this?
Recall that 28 students had the new iPhone and 44 students had a Pad. Why cannot
Pham just add 28 +44 to get the answer to part (b)? Explain.

3

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

i would be 2,000 just get the square root of 50 which is 2500 and the divid 4/5 and last thing multiply the answer you get for that by the square root of 50

step-by-step explanation:

d.) 48 units

step-by-step explanation: