What number would you add to both sides of x2 + 7x = 4 to complete the square?
A. 2^2
B. 7^2
C. 7^2/2
D. (7/2)^2

D. (7/2)^2

Then, you would be able to factor it to (x+3.5)^2

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest

no

step-by-step explanation: