Answer:
there are 1250 readers
Step-by-step explanation:
r = readers
4 percent of readers sent letter = 50 recieved letters
r * 4 percent = 50
r * .04 =50
divide by .04 on each side
r = 50/.04
r =1250
What do you mean, "solve"?
y = -4(x-2)² + 4
the line is a parabol with a maximum (2;4)
it's roots are -4(x-2)² + 4 = 0 => (x-2)² = 1 => x-2 = 1 => x = 3
=> x-2 = -1 => x = 1
symetrical axe: x = 2
is that all you need?
Answer: 8 units^2
Step-by-step explanation:
Since both length and width are cut in half by the overlap the new width and lenghth become 8/2=4 and 4/2=2 so 4 and 2
So find area=lxw so 4*2=8
38 x 1 = 1
38 x 0.1 = 3.8
38 x 0.01 = 0.38