Dont understand this: The following are the ages (years) of 5 people in a room:
13, 18, 14, 17, 24
A person enters the room.
The mean age of the 6 people is now 21.
What is the age of the person who entered the room?

thus, the first answer choice, y = sec x, is the correct one

show da graph

step-by-step explanation:

the answer is d

for problems like this theres an app, its photomath that explains the problem and gives the answer hope i

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0