Answer:
- x=1,4,3,2
- Y=5,2,1,4
- <u>Domain </u>1,4,3,2
- <u>Range </u>5,2,1,4
Step-by-step explanation:
The domain are all the values which can be input into a function. Example y = 2x. To find y, you input some value of x.
Answer:
10,000 divided by 5,000 12 times
Step-by-step explanation:
Answer:
x=4
Step-by-step explanation:
sqrt(x+5) = sqrt(x)+1
Square each side
(sqrt(x+5))^2 = (sqrt(x)+1)^2
x+5 = (sqrt(x)+1)^2
Foil
x+5 = (sqrt(x)) ^2 + sqrt(x) + sqrt(x) + 1
x+5 = x + 2 sqrt(x) + 1
Subtract x from each side
5 = 2 sqrt(x) + 1
Subtract 1 from each sdie
4 = 2 sqrt(x)
Square each side
4^2 = (2 sqrt(x))^2
16 = 4 x
Divide by 4
16/4 = 4x/4
4 =x
Check to see if it is extraneous
sqrt(4+5) = sqrt(4)+1
sqrt(9) = sqrt(4) +1
3 = 2+1
3=3
It is a valid solution
The current mean is 3 (15/3)
adding 9 would make the mean 4 (24/6)
therefore the mean would increase by 1
Answer:
Please refer to the attachment.......
